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Files 3521 53#
acura — 2
alfa romeo — 8
amc — 35
audi — 4 — 2#
bmw - mini — 22 — 4#
buick — 63
cadillac — 10
— _Cadillac Earlier — 2
— Northstar — 3
chevy — 682 — 1#
&n1111 — lsx — 321
— ltx — 87
— 4.3l v6 — 9
— ecotec — 4
chevy_big_block — 455
— 409 — 14
chrysler — 9
— jeep — 22
— neon — 8
— viper - v10 — 14
— la — 151 — 1#
— hemi — 37
chrysler_big_block
— rb — 145
— early hemi — 10 — 1#
— hemi — 54
citroen — 0 — 2#
ferrari — 11
fiat — 2
ford — 36 — 18#
— v6 3.5 3.7 ecoboost — 2
— v6 3.8 — 7
— cleveland — 51
— modular — 82
— windsor — 333
ford_big_block
— fe — 49 — 1#
— 385 series — 155 — 1#
gmc - v6 — 2
gm_duramax_diesel — 3
holden — 8
honda — 34
hyundai — 7
jaguar — 1
lotus — 0 — 1#
mazda — 13
mercedes — 6
mgb — 5
mitsubishi — 20 — 2#
nissan — 22
olds — 53
opel / vaux — 23 — 4#
peugeot — 1
pontiac — 172 — 2#
— 3800 v6 — 13
porsche — 10
renault — 4
rover — 4 — 2#
studebaker — 9
subaru — 15 — 2#
toyota — 40
volvo — 16 — 2#
vw — 36 — 9#
———————
buell — 4
harley-davidson — 71
honda — 2
indian — 1
jawa — 1
kawasaki — 4
kohler — 1
suzuki — 9
triumph — 1
victory — 2
yamaha — 6
———————
ih — 2

275 2v/3v Intake Files — 40#

# - DFW Only Numbers
38 2v/3v Intake Files

DFW or FLW Files
A Package of more than 3500 flow files for use with Dyno simulation programs.
I have formatted each cylinder heads information into individual files for use with different versions of DeskTop Dyno, DynoSim, Comp Cams CamQuest program, Dynomation Versions 4 and 5 and Performance Trends Engine Analyzer. The files will be in separate folders for the different engine types.
For information and Pricing Email Stan

Cylinder Head Flow Data at 28 Inches of Water

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[Acura] [Alfa Romeo] [AMC] [Audi] [BMW] [Buick] [Cadillac] [Chevy] [BB Chevy] [Chrysler] [BB Chrysler] [Citroen] [Cummins] [Ferrari] [Fiat] [Ford] [BB Ford] [GMC] [GM Duramax Diesel] [Holden] [Honda] [Hyundai] [Jaguar] [Lotus] [Mazda] [Mercedes] [MGB] [Mitsubishi] [Nissan] [Olds] [Opel / Vauxhall] [Peugeot] [Pontiac] [Porsche] [Renault] [Rover] [Saab] [Studebaker] [Subaru] [Toyota] [Volvo] [VW] ——— [Buell] [Harley-Davidson] [Honda] [Indian] [Jawa] [Kawasaki] [Kohler] [KTM] [Rotax] [Polaris] [Suzuki] [Triumph] [Victory] [Yamaha] ——— [IH]

These numbers have come from various magazines, web sites, manufactures catalogs, and ???
We have tried to verify the accuracy of these numbers, but use them at your own risk!

ALL Volume numbers are in CCs. — ALL Flow numbers are in CFM.

Bigger is not always better (The highest flow numbers and/or largest port volume). — Flow Velocity or the speed of the air through the port is just as important.
We want the best flow numbers with the smallest port volume and the highest velocity (up to a point).
Remember to compare all flow numbers. — Low lift flow does help performance.
Just looking at flow numbers near or above maximum Valve lift for your camshaft is meaningless. Look for the best average flow from mid-lift to just before maximum lift of your camshaft.
For street engines airflow at 0.400-inch lift is a good place to evaluate flow.
Two heads can have different cc's in port volume and still have the same average CSA because of their different port centerline lengths.
For a supercharged, or nitrous you will need a higher intake exhaust ratio (percentage).
Use these numbers only as a rough guide.
Remember when doing a comparison to other tables check at what pressure differential were they flowed?

Where do MOST of the numbers come from?

Most flow numbers for Advanced Induction heads come from their Web Site updated Aug. '12.
Most flow numbers for AFR — Air Flow Research heads come from their Web Site or '05/'12/'13 Catalog, updated Nov '23.
All flow numbers for AJPE — Alan Johnson Performance Engineering heads come from their Web Site updated Aug. '16.
All flow numbers for Alaniz Cylinder Heads come from their Web Site updated Dec. '08.
No flow numbers for ALL PRO Aluminum Cylinder Heads come from their Web Site updated Aug. '12.
All flow numbers for /Andre' Norrback heads come from /Andre' Norrback their Web Site updated Feb. '12.
Most flow numbers for Avenger Cylinder Heads come from their Web Site updated Aug. '09.
Most flow numbers for BENNETT heads come from their Web Site updated Oct. '08.
Most flow numbers for BES Racing Engines heads come from their Web Site updated Oct '21.
All flow numbers for BHPerformance Ported heads come from BHPerformance updated Jan. '05.
All flow numbers for Bill Jones heads were from Bill Jones, updated Nov '13 — most were converted from 25" to 28".
Most flow numbers for BJR Racing Engines & Heads come from BJR Racing their Web Site updated Jan. '11
Most flow numbers for British Automotive - MGB heads come from their Web Site updated May '07 — and were converted from 10" to 28".
All flow numbers for Bob Legere Ported heads came from him Updated March '09 — and were converted from 10" to 28".
Most flow numbers for BMF heads come from their Web Site updated Aug. '09.
Most flow numbers for BRODIX heads come from their '98/'04/'06/'08/'19/'22 Catalogs. Some from their Web Site updated Sep. '24.
All flow numbers for Bullet Cylinder Heads come from their Web Site updated Dec. '09.
Most flow numbers for CANFIELD heads come from their Web Site updated Oct. '09.
All flow numbers for CAROBU Engineering heads come from CAROBU Engineering Web Site updated Jan. '11.
Most flow numbers for CCH — Canadian Cylinder Head Technologies heads come from their Web Site updated Oct. '08 — and were converted from 25" to 28".
Most flow numbers for Chapman Racing Heads come from their Web Site updated Oct. '08.
Most flow numbers for CHI — Cylinder Head Innovations heads come from their Web Site updated Aug. '09.
Most flow numbers for CHR Motorsports LLC heads were from CHR Motorsports or their Web Site updated Aug. '09.
All flow numbers for CHW — Cylinder Head Works heads come from them Web Site updated April '10.
CID Competition Induction Designs heads come from their Web Site.
All flow numbers for CNC Heads UK come from their Web Site. Updated July '10 — and were converted from 10" to 28".
Most flow numbers for DART heads were from DART or their Web Site updated Dec. '22.
All flow numbers for Darin Morgan heads come from Darin Morgan updated Oct. '12.
All flow numbers for David Vizard heads come from Web Site updated April '08.
All flow numbers for DRD Racing Heads come from their Web Site updated Aug. '09.
All flow numbers for Dr J's Performance heads come from their Web Site updated Jan. '13.
Most flow numbers for EDELBROCK heads come from their Web Site updated Oct. '20.
Most flow numbers for ET Performance heads come from their Web Site updated Aug. '09.
All flow numbers for FLO Headworks Ported heads come from their Web Site. Updated June '07 — and were converted from 10" to 28".
All flow numbers for Flowtech - Steven Magnotti Ported heads come from them Contact updated Feb. '14.
All flow numbers for For Hemis Only Ported heads come from their Web Site updated March '13.
Most flow numbers for Fox Lake Ported heads come from their Web Site updated Oct. '20.
Most flow numbers for Foxwell Motorsports heads come from their Web Site updated April '24.
Most flow numbers for Gamrace heads come from their Web Site updated Aug. '09.
Most flow numbers for HRD Ported heads come from their Web Site updated June '09.
Most flow numbers for Hot Heads heads come from their Web Site updated Dec. '08.
Most flow numbers for INDY heads come from their Web Site updated May '23.
All flow numbers for JG Engine Dynamics heads come from their Web Site updated Nov. '08.
Most flow numbers for JM Cylinder Heads come from their Web Site updated Aug. '09.
Most flow numbers for Jones Engineering Ported heads come from their Web Site updated Aug. '14.
All flow numbers for Kelford Cams heads come from Kelford Cams or their Web Site updated Oct. '08.
All flow numbers for Kendrick Auto heads come from Kelford Cams or their Web Site updated July '09.
All flow numbers for KRE — Kauffman Racing Equipment Ported heads were from them or come from their Web Site updated May '07.
Most flow numbers for Lingenfelter Cylinder Heads come from their Web Site updated Dec. '08.
Some flow numbers for Livernois Motorsports Ported heads come from their Web Site updated August '21.
Most flow numbers for LME Cylinder Heads come from their Web Site updated Sep. '24.
Most flow numbers for M2 Race Systems heads come from their Web Site updated Aug. '09.
Most flow numbers for Mast heads come from their Web Site updated Dec. '22.
Most flow numbers for MBE LLC heads were from MBE LLC or their Web Site updated Aug. '09.
All flow numbers for Meaux Racing heads were from Meaux Racing, their Web Site updated Aug. '13.
The flow numbers for Modern Cylinder Head were from a number of different sources, their Web Site updated Feb. '20.
All flow numbers for MORGO Systems come from them Updated Sept. '13 — and were converted from 10" to 28".
All flow numbers for NPS — Nordic Porting Service come from Marko Pirkonen their Web Site Updated April '12
Most flow numbers for Patriot Performance heads come from their Web Site updated May '10.
Most flow numbers for PowerHeads come from their Web Site updated Aug. '09.
Some flow numbers for Pro-Filer heads come from their Web Site updated Oct. '20.
Most flow numbers for Pro Comp heads come from their Web Site updated Dec. '08.
Some flow numbers for ProMaxx heads come from their Web Site updated June '23.
All flow numbers for RFD — Race Flow Development heads come from RFD, their Web Site updated July '11.
All flow numbers for Reher Morrison Racing Engines heads come from their Web Site updated May '07.
All flow numbers for RHS — Racing Head Service heads come from their Web Site updated Feb. '12.
All flow numbers for RLD Performance heads come from their Web Site updated Aug. '14.
All flow numbers for Ron's Porting Service heads come from their Web Site updated Aug. '14.
All flow numbers for Sabre Heads come from their Web Site. Updated Aug. '12 — and were converted from 10" to 28".
Most flow numbers for Scott Johnston heads come from them Web Site updated July '09.
Most flow numbers for SD Performance heads come from their Web Site updated May '15.
All flow numbers for Shady Dell Speed Shop heads come from their Web Site updated Dec. '08.
Most flow numbers for Shanons Engineering heads come from their Web Site updated May '07.
Some flow numbers for Slick Rick Racing Heads Heads come from Ricky McConathy, their Web Site updated Nov. '11.
Most flow numbers for Smithberg Racing heads come from their Web Site updated Aug. '13.
Most flow numbers for Sonny's Racing Engines, Inc. heads come from their Web Site updated Aug. '12.
Some flow numbers for Speier Racing Heads Heads come from their Web Site updated June '23.
All flow numbers for Super Six Motorsports heads come from their Web Site updated March '13.
Most flow numbers for TEA — Total Engine Airflow heads come from their Web Site updated Aug. '14.
Most flow numbers for Trick Flow heads come from their Catalog. Web Site updated May '23.
All flow numbers for TRI-Mark Performance Heads come from their Web Site updated Oct. '10.
Most flow numbers for Weingartner Racing heads come from Weingartner Racing or their Web Site updated Feb. '22. Brez = A Brezenski Fixture was used.
Most flow numbers for West Coast (WCCH) heads come from West Coast their Web Site updated Jan '22.
Some flow numbers for Wolfplace - Lewis Racing Engines heads come from their Web Site updated Dec. '14.
Most flow numbers for World Castings heads come from their Web Site updated Dec. '11.
CCM - Means these numbers come from Car Craft Magazine Web Site.
CHP - Means these numbers come from Chevy High Performance Magazine Web Site.
HPMM - Means these numbers come from High Performance Mopar Magazine Web Site.
HPP - Means these numbers come from High Performance Pontiac Magazine Web Site.
HRM - Means these numbers come from Hot Rod Magazine
MMM - Means these numbers come from Mopar Muscle Magazine Web Site.
MMFF - Means these numbers come from Muscle Mustangs & Fast Fords Magazine Web Site.
5.0 S/F - Means these numbers come from 5.0 Mustang & Super Fords Magazine Web Site.

Cylinder Head Flow Data Table

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

1.8l Type R CCH

N/A

33mm/ 28mm

N/A

262/207

1.8l Type R Ported CCH

N/A

33mm/ 28mm

N/A

299/242

GSR Alaniz Cyl Heads

N/A

33mm/ 28mm

N/A

77/-

123/-

154/-

174/-

194/-

215/-

232/-

245/-

256/-

GSR Ported Alaniz Cyl Heads

N/A

75/-

117/-

151/-

179/-

209/-

236/-

256/-

271/-

279/-

GSR Ported WAT Porflow

N/A

33mm/ 28mm
81mm

N/A

84/70

119/111

150/150

183/176

213/188

237/195

255/197

267/198

280/203

1.8l GSR CCH

N/A

33mm/ 28mm

N/A

250/189

1.8l GSR Ported CCH

N/A

33mm/ 28mm

N/A

290/234

RSX-S Alaniz Cyl Heads

N/A

35mm/ 30mm

N/A

83/-

130/-

173/-

208/-

234/-

254/-

269/-

280/-

285/-

RSX Ported CHR Motorsports LLC Home Made Bench

N/A

35mm/ 30mm
-
Radius on Exhaust

N/A

95/113

131/148

162/175

192/200

213/213

234/226

251/232

264/237

277/241

286/244

293/245

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

1mm

2mm

3mm

4mm

6mm

8mm

10mm

11mm

12mm

13mm

14mm

15mm

16mm

Average

2.0l Jim K

N/A

44mm/40mm

N/A

18/18

42/42

64/62

78/75

110/89

133/99

144/105

147/107

149/109

151/110

2.0l Jim K Exhaust Ported

N/A

44mm/40mm

N/A

18/20

42/42

64/64

78/75

110/92

133/107

144/117

147/120

149/124

151/125

2.0l Jim K 1mmOS Valves

N/A

45mm/41mm

N/A

18/18

42/42

64/62

84/84

122/110

149/119

164/122

171/124

172/124

174/124

2.0l Ported Stage 2 Jim K

N/A

46mm/38mm

N/A

20/17

44/35

64/52

84/67

124/97

154/110

177/119

184/122

189/124

192/125

2.0l Ported Stage 3 Jim K

N/A

46mm/38mm

N/A

20/17

45/35

67/52

89/67

136/97

172/110

192/119

197/122

201/124

201/125

155 TS Ported Andreas Engstr�m welded and epoxi

N/A

47mm/38mm
84mm
Pipe

N/A

28/25

50/43

66/66

87/87

132/126

177/155

213/166

225/167

228/167

232/169

235/170

237/171

238/172

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

'72 2.0l

N/A

44mm/40mm

N/A

48/42

93/78

131/97

150/100

153/99

158/97

'72 2.0l +1mm Valves

N/A

45mm/41mm

N/A

53/49

110/79

143/98

165/104

171/104

176/104

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

AMC '70 Stone Stock 304 Ken Parkman Iron

N/A

1.787/1.406
3.75
No Pipe

65/38

127/74

156/100

168/116

176/125

184/130

194/133

AMC 517 '70 Ken Parkman Iron

N/A

1.79/-
3.82

N/A

69/-

125/-

154/-

166/-

173/-

182/-

189/-

AMC 090 '73 Ken Parkman SF110 Iron

N/A

2.025/1.625

74/56

156/112

201/141

219/149

226/149

232/150

238/151

AMC 090 74Bubblefender Iron

N/A

2.025/1.625

N/A

74/56

156/112

201/141

219/145

226/149

232/150

AMC 090 Ported 74Bubblefender Iron

N/A

2.025/1.625

N/A

85/53

160/103

210/142

225/163

230/169

238/175

AMC 291 Iron

173/73

2.025/1.625

N/A

225/155

AMC 291 '70 Ken Parkman SF110 Iron

N/A

2.025/1.625
-
No Pipe

71/55

127/107

179/135

209/142

217/145

222/145

228/145

AMC 291 Bowl Intake Ported Exhaust Iron

N/A

2.055/1.65
-
Pipe

N/A

67/50

138/108

193/153

236/178

257/220

257/227

257/230

AMC 291-C '70 390 '71 401 74Bubblefender Iron

N/A

2.025/1.625

138/101

185/137

212/152

214/154

219/-

AMC 291-C Ported Iron

N/A

2.02/1.65
-
2" Pipe

N/A

68/63

134/113

203/161

234/203

248/230

258/241

261/248

AMC 291-C Ported John Iron

N/A

-
-
No Pipe

N/A

90/57

148/115

200/147

241/192

273/206

293/210

300/211

308/-

AMC 324-2 '78 Stock 304 Iron

N/A

1.787/1.406

N/A

67/34

121/70

152/97

162/113

168/122

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

AMC 324-2 '78 Mod 304 Rick Jones Iron

N/A

2.02/1.60

N/A

68/47

124/92

173/116

195/124

204/128

AMC 324-2 '78 Blend + SSR 304 Rick Jones Iron

N/A

2.02/1.60

N/A

68/48

124/95

174/133

205/153

215/160

AMC 475-1 '77 Stock 360 Iron

N/A

2.025/1.68

N/A

68/49

134/98

174/124

198/138

205/141

AMC 475 '78-'85 74Bubblefender Iron

N/A

2.025/1.625

142/107

186/137

204/143

209/144

214/-

AMC 502 '74-'77 74Bubblefender Iron

N/A

2.025/1.625

59.2

144/114

188/132

204/140

212/144

216/-

AMC 502 '74 Ken Parkman SF110 Iron

N/A

2.025/1.625

70/59

143/113

192/146

213/150

220/152

228/153

236/153

AMC SS Iron

N/A

2.08/1.66

N/A

264/-

AMC 558 M_M Performance Heads Stock Iron

N/A

2.08/-

N/A

80/-

137/-

183/-

214/-

218/-

223/-

225/-

AMC 558 M_M Performance Heads Blending Iron

N/A

2.08/-

N/A

82/-

152/-

199/-

226/-

227/-

229/-

233/-

AMC SS 558 Ken Parkman Iron

N/A

2.08/1.66
-
No Pipe

N/A

70/57

154/100

206/129

242/146

239/152

246/159

248/167

AMC SS 558 Ken Parkman Iron

N/A

2.08/1.66
-
Pipe

N/A

70/58

154/107

206/142

242/161

239/172

246/181

248/190

AMC Iron Ported Payton

N/A

2.08/1.625

270/200

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Edelbrock Performer Rick Jones Alum

N/A

2.02/1.60

N/A

64/47

131/81

198/109

242/133

265/149

268/161

Edelbrock Performer 60119, 60139 SF1020 Alum

185/70

2.02/1.60

65/52

130/96

192/127

235/163

258/182

260/190

Edelbrock Performer RPM 60109 Alum

185/70

2.02/1.60
4.15

252/162

Edelbrock Ported 74Bubblefender Alum

N/A

2.02/1.60

134/106

182/145

244/176

270/200

274/212

Edelbrock Ported 74Bubblefender Alum

N/A

2.08/1.60

143/113

202/149

254/181

278/201

286/214

296/-

Edelbrock Performer 401 Ported Meaux Racing SF600 Alum

N/A

2.02/1.60
4.00
No Pipe

N/A

130/97

192/135

241/179

268/203

282/213

Indy 401SR

235/105

2.10/1.65

136/101

194/137

237/162

265/173

275/177

281/180

Indy 401-SR Alum

235/105

2.10/1.65

136/123

195/159

233/178

259/186

272/191

272/192

Indy 401-SR Full Porting Alum

N/A

2.10/1.65

N/A

141/123

204/155

253/181

287/207

311/225

322/237

Indy 401-SR Ported Ken Parkman Alum

N/A

2.10/1.65
-
Pipe

N/A

65/50

143/112

200/170

248/247

281/234

304/251

318/261

Indy 401-SR Ported Alfano Perfermance Alum

N/A

2.10/1.65

N/A

65/55

139/113

200/151

250/186

290/208

313/225

323/238

326/250

Indy 401-SR Ported Garland Perfermance Alum

N/A

2.10/1.65

N/A

80/54

160/115

228/170

283/216

322/239

340/257

346/270

349/280

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Indy 401-SR Ported Alum

N/A

2.10/1.65

N/A

80/54

160/115

228/170

283/216

322/239

341/257

350/270

358/280

Indy 401-SR Ported Alum

N/A

2.10/1.65

N/A

93/58

164/118

225/172

278/218

316/241

343/260

360/273

366/282

Indy 401-1 Alum

245/110

2.19/1.81

128/94

185/131

230/161

268/181

294/194

304/202

Indy 401-1 Alum

245/110

2.19/1.81

139/114

195/147

241/172

272/189

288/197

288/205

Indy 401-1 Full Porting Alum

275/125

2.19/1.81

N/A

147/120

208/158

257/186

297/207

329/224

354/238

Indy 401-1 CNC Alum

300/134

2.25/1.81

239/175

298/214

349/254

376/274

388/285

390/287

Indy 401-1 Ported RadAMX Alum

N/A

2.19/1.81
-
No Pipe

N/A

54/60

131/112

197/153

253/185

299/211

340/234

360/249

-/259

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.380

.400

.450

.500

.550

.600

.650

Average

1.8l T 20 V Small Port CCH

N/A

26.9mm/ 29.9mm

N/A

177/171

1.8l T 20 V Small Port Ported CCH

N/A

26.9mm/ 29.9mm

N/A

238/202

1.8l T 20 V Large Port CCH

N/A

26.9mm/ 29.9mm

N/A

212/195

1.8l T 20 V Large Port Ported CCH

N/A

26.9mm/ 29.9mm

N/A

257/224

1.8l T 20V CNC HEADS UK

N/A

26.9mm/ 29.9mm
100mm
No Pipe

N/A

53/-

102/89

142/-

178/134

205/-

222/161

231/-

239/176

245/182

1.8l T 20V Ported CNC HEADS UK

N/A

26.9mm/ 29.9mm
100mm
No Pipe

N/A

48/-

96/83

139/-

179/146

208/-

228/193

242/-

250/223

256/-

255/250

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

1mm

2mm

3mm

4mm

5mm

6mm

7mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

Average

S2 2.2l 20V Stock NPS

N/A

32mm/ 28mm
82mm
No Pipe

N/A

56/49

107/94

156/119

181/125

191/128

193/130

A7 2.3l MORGO Systems

N/A

32mm/ 29.5mm
-
Pipe

N/A

35/25

61/49

81/71

106/91

134/115

157/128

175/131

185/135

193/138

199/140

202/142

203/143

206/145

A7 2.3l Ported MORGO Systems

N/A

32mm/ 29.5mm
-
Pipe

N/A

33/32

64/67

94/94

125/115

154/131

180/147

197/157

211/166

223/170

239/176

240/180

246/182

250/185

2.5l Wv T4 MORGO Systems

N/A

Stock
-
Pipe

N/A

32/-

49/-

67/-

83/-

100/-

109/-

117/-

125/-

130/-

134/-

139/-

143/-

146/-

2.5l Wv T4 Ported MORGO Systems

N/A

Stock
-
Pipe

N/A

33/-

54/-

74/-

93/-

110/-

124/-

135/-

140/-

146/-

150/-

157/-

163/-

166/-

2.5l V6 MORGO Systems

N/A

27mm/ 24mm
-
Pipe

N/A

28/24

54/50

78/74

100/95

116/106

120/110

126/111

128/112

128/113

129/113

131/113

133/114

135/114

2.5l V6 Ported MORGO Systems

N/A

27mm/ 24mm
-
Pipe

N/A

-/27

-/53

-79

-/106

-/123

-/131

-/132

-/134

-/135

-/136

-/137

4.2l V8 MORGO Systems

N/A

26.9mm/ 29.9mm
-
Pipe

N/A

32/-

58/-

80/-

104/-

129/-

149/-

166/-

180/-

191/-

199/-

202/-

203/-

4.2l V8 Ported MORGO Systems

N/A

26.9mm/ 29.9mm
-
Pipe

N/A

32/-

61/-

90/-

119/-

148/-

172/-

189/-

198/-

208-

215/-

222/-

226/-

229/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

Mini A Series Sabre Heads

N/A

33.2mm/ 29.4mm
-
No Pipe

N/A

19/16

38/33

56/45

72/53

82/58

89/63

95/67

101/69

102/72

Mini A Series Ported Sabre Heads Offset Guides

N/A

36.7mm/ 32mm
-
No Pipe

N/A

22/18

46/38

66/65

78/68

100/78

110/88

116/95

121/104

121/108

123/110

M5 CNC Heads UK

N/A

1.374/1.198
100mm
Pipe

N/A

42/-

86/74

133/-

182/150

221/-

245/177

255/-

262/185

268/-

271/189

M5 Ported CNC Heads UK

N/A

1.374/1.198
100mm
Pipe

N/A

42/-

89/73

134/-

175/159

212/-

239/193

263/-

278/208

288/-

292/208

295/-

EVO 3

N/A

37mm/ 32mm

N/A

92/77

185/165

248/213

264/225

268/228

273/231

Mini Cooper S CHR Motorsports LLC Home Made Bench

N/A

30.25mm/ 23.25mm
-
Radius on Exhaust

N/A

33/31

66/51

98/77

127/98

153/106

169/111

174/113

176/115

175/116

Mini Cooper S CHR Motorsports LLC Home Made Bench

N/A

31.25mm/ 24.25mm
-
Radius on Exhaust

N/A

83/45

136/107

160/120

179/127

182/130

191/132

193/133

Mini Cooper S Ported CHR Motorsports LLC Home Made Bench

N/A

31.25mm/ 24.25mm
-
Radius on Exhaust

N/A

55/35

111/69

144/102

173/129

200/149

213/164

221/172

232/173

236/174

Mini Cooper S Ported CHR Motorsports LLC Home Made Bench

N/A

31.25mm/ 24.5mm
-
Radius on Exhaust

N/A

55/42

111/80

144/123

173/151

200/161

213/165

221/170

232/172

236/173

Mini Cooper S Madness

N/A

30.25mm/ 23.25mm

N/A

32/30

69/69

103/93

136/104

163/108

178/110

178/111

179/111

Mini Cooper S Ported Madness Stage 1

N/A

30.25mm/ 24.5mm

N/A

38/37

75/70

109/107

143/134

175/142

198/144

211/145

217/145

Mini Cooper S Ported Madness Stage 2

N/A

31.5mm/ 24.5mm

N/A

36/32

73/61

110/91

145/122

178/152

213/161

224/164

230/165

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

Mini Cooper S '01-06 M2 Race Systems

98/54

30.2mm/ 23.25mm
3.285

37/26

71/61

103/86

136/98

165/102

182/104

184/105

185/105

Mini Cooper S '01-06 CNC M2 Race Systems

114/69

30.2mm/ 23.25mm
3.285

38/27

75/58

112/86

146/111

173/140

192/158

209/172

221/175

230/176

Mini Cooper S '01-06 CNC M2 Race Systems 1mmOS Valves

114/69

31.2mm/ 24.25mm
3.285

41/28

80/64

118/99

155/126

180/150

196/162

210/172

224/176

234/177

Mini Cooper S Ported Cosworth Stage 1

N/A

31.25mm/ 24.25

N/A

35/30

74/54

107/81

138/102

165/118

186/128

201/134

210/137

Mini Cooper S Ported JCW

N/A

34/29

72/58

105/86

137/117

165/124

182/128

189/129

186/130

Mini SOHC Sabre Heads

N/A

30.2mm/ 23.3mm
77mm
No Pipe

N/A

34/26

70/56

107/79

140/98

166/105

180/108

181/108

186/108

188/109

Mini SOHC Ported Sabre Heads

N/A

30.2mm/ 23.3mm
77mm
No Pipe

N/A

35/27

70/66

105/106

139/126

170/129

190/131

200/132

205/132

210/133

212/134

Mini CNC Heads UK

N/A

30.2mm/ 23.33mm
100mm
No Pipe

N/A

35/-

71/56

105/-

142/100

171/-

189/109

193/-

196/110

197/-

-/110

Mini Ported CNC Heads UK

N/A

30.2mm/ 23.33mm
100mm
No Pipe

N/A

36/-

72/66

107/-

145/148

176/-

200/170

215/-

225/174

230/-

233/174

M20 325 1705885 Digger

N/A

42mm/36mm

N/A

55/44

110/89

155/115

181/124

181/127

186/127

188/127

Alpina 1705885 Digger

N/A

42mm/36mm

N/A

53/39

106/86

151/124

183/139

190/145

191/154

195/156

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

M20B25_885 Ported /Andre' Norrback

N/A

42mm/36mm
85mm
No Pipe

N/A

42/31

82/61

119/84

154/103

170/112

177/119

181/122

184/-

M20B25 AMC Ported /Andre' Norrback

N/A

42mm/35mm
86mm
No Pipe

N/A

48/36

86/68

115/100

138/107

156/117

159/120

161/120

M20 325i Ported NPS

N/A

41.95mm/ 35.9mm
83mm
No Pipe

N/A

40/33

82/64

122/89

153/106

168/116

173/121

173/124

M52B20 Roadster Ported /Andre' Norrback

N/A

30mm/27mm
85mm
No Pipe

N/A

55/51

112/98

162/122

186/138

189/148

190/152

M20 323i 1264200 Marquis Rex

N/A

40mm/34mm

N/A

33/-

69/-

101/-

117/-

119/-

123/-

M20 323i 1277731 Marquis Rex

N/A

40mm/34mm

N/A

32/-

68/-

105/-

129/-

136/-

141/-

M20 325i 1705885 Marquis Rex

N/A

42mm/36mm

N/A

36/-

78/-

112/-

135/-

158/-

175/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Buick 320 Stright 8 Stock NPS Iron

N/A

1.77/1.45
3.543
No Pipe

N/A

50/43

101/83

128/93

134/96

Buick 215 V8 Alum

N/A

1.525/1.35

N/A

128/81

Buick 300 V8 Alum

N/A

1.625/1.312

N/A

105/96

135/108

142/115

149/115

154/116

Buick 300 V8 Ported Alum

N/A

1.775/1.50
-
No Pipe

N/A

66/47

129/104

174/130

191/146

196/152

200/153

Buick 300 V8 Ported Peak Performance Alum

N/A

1.625/1.312

N/A

151/108

159/123

160/129

Buick 340 V8 DynoDave Iron

N/A

1.81/1.37

N/A

54/38

112/75

153/99

172/102

175/104

Buick 340 1376330 NPS Iron

N/A

1.81/1.39

N/A

49/40

102/80

143/97

156/102

160/104

160/-

Buick 340 1376330 VJ Bowls Port Cleanup NPS Iron

N/A

1.81/1.39

N/A

57/44

110/82

155/104

185/118

185/130

195/136

Buick Nailhead Stock Iron

N/A

1.875/1.437
4.00
No Pipe

124

63/41

110/81

146/101

183/107

188/111

Buick Nailhead '57 889 Mild Ported RnD Engineering I-30 E-30 Back Cut Iron

N/A

1.875/1.437
4.00
No Pipe

124

64/47

126/76

169/99

196/111

196/116

Buick Nailhead '66 401 Stock Babeola Iron

N/A

1.87/1.50

124

53/47

110/78

157/103

180/117

190/120

196/123

Buick Nailhead 401 Ported Gessler Iron

N/A

1.875/1.50

N/A

62/48

127/83

171/108

197/130

212/138

219/141

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Buick Nailhead Ported Iron

N/A

1.875/-

N/A

62/-

125/-

166/-

203/-

219/-

224/-

Buick GN Iron

N/A

1.71/1.50

N/A

156/110

Buick GN Iron

N/A

1.71/1.50

N/A

52/45

108/84

149/101

152/108

155/111

Buick GN Iron

N/A

1.71/1.50

N/A

54/50

111/96

161/131

177/136

178/136

Buick GN Ported Iron

N/A

1.77/1.50

N/A

196/157

Buick GN Ported Iron

N/A

1.77/1.50

N/A

59/49

127/98

175/142

193/154

202/156

Buick GN Ported VPE Iron

N/A

206/173

217/181

221/184

Buick GN Ported VPE Stage 3 Iron

N/A

205/174

218/184

223/184

Buick GN1 Mild Ported SF600

N/A

1.77/1.50
3.875

N/A

62/51

128/106

182/139

216/164

228/172

228/177

Buick GN1 Ported

N/A

1.77/1.50

N/A

64/52

143/115

206/149

237/181

244/197

Buick '86 Ported Iron

N/A

1.77/1.50

N/A

120/99

173/137

201/151

208/152

214/152

218/152

TA Performance Street Intimidator

156/72

1.94/1.60
4.00
No Pipe

59/61

118/107

167/143

210/162

210/177

213/180

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

TA Performance Street Eliminator

163/73

1.94/1.60

46/55

59/42

108/87

156/121

184/135

195/144

204/145

TA Performance Street Eliminator Hand Ported

N/A

1.94/1.60

N/A

60/43

86/95

142/135

203/179

232/194

235/204

234/205

TA Performance Street Eliminator Ported

163/73

1.94/1.60

N/A

87/49

150/100

204/139

235/184

263/195

266/204

TA Performance Ported

N/A

1.94/1.60

N/A

62/58

116/103

173/133

221/178

253/196

264/204

Buick V6 Stage II Ported Chapman

247/-

2.10/1.625

40.5

68/53

145/113

221/174

281/213

321/229

336/241

341/247

Buick TA Ported to Stage I Iron

N/A

2.13/1.75

N/A

66/57

133/109

188/133

226/147

236/159

234/159

233/162

M-A Ported Greg Good Racing Heads

N/A

1.90/1.50

N/A

70/59

133/112

191/152

234/180

247/190

252/193

Buick 455 '73 860 Ported Smithberg Racing Saenz S-600 Iron

N/A

2.13/-
4.31

N/A

72/-

143/-

204/-

262/-

280/-

284/-

Buick 455 '73 860 Ported Smithberg Racing Iron

N/A

2.125/1.75
4.31
No Pipe

N/A

75/67

157/115

222/149

268/170

287/187

289/193

Buick Stage I Iron

N/A

2.13/1.75

N/A

230/189

Buick Stage I '74 Jim Iron

N/A

2.13/1.75

N/A

218/139

Buick Stage I Ported Iron

N/A

295/205

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Buick Stage I Ported Iron

N/A

74/-

158/-

233/-

280/-

292/-

Buick Stage I Ported Iron

N/A

73/-

153/-

222/-

276/-

304/-

297/-

Buick Stage I Level III Ported Gessler Iron

N/A

2.125/1.75

N/A

67/58

140/119

197/150

240/175

246/185

247/189

Buick Stage I Ported Gessler Iron

N/A

2.13/1.77

N/A

71/59

150/125

227/168

284/192

305/197

300/200

Buick Stage II

N/A

2.13/1.75

N/A

236/213

Buick 350 Rick Crawford Iron

N/A

1.875/1.55

N/A

55/44

112/100

165/119

199/137

196/146

199/149

Buick 350 Rick Crawford Ported Iron

N/A

1.92/1.55

N/A

65/66

122/114

180/150

236/179

260/191

264/199

Buick 350 Jim Weise Ported Iron

N/A

1.92/1.55

N/A

66/55

131/105

188/131

229/141

255/167

256/170

Buick 350 Ported Gessler Iron

N/A

1.875/1.55

N/A

62/59

122/106

183/132

226/146

246/154

250/161

Buick 455 Iron

N/A

2.00/1.625

N/A

59/52

120/100

175/124

208/140

218/147

Buick 455 Iron

184/142

2.125/1.75

N/A

220/150

Buick 455 Ported Gessler Iron

N/A

2.125/1.75

N/A

71/61

146/119

213/145

259/172

270/187

264/195

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Buick 430 (Stage 1 Valves) Charlie Evans Iron

N/A

2.125/1.75

N/A

76/57

142/97

198/124

227/142

225/152

227/156

Buick 430 Ported Iron

N/A

2.00/1.625

N/A

76/53

156/106

224/139

264/166

274/177

269/181

Buick Converted to Stage 1 Valves TA Iron

N/A

2.13/1.755

N/A

66/57

133/109

188/133

226/147

236/159

233/159

233/162

Buick 430 985 Ported TA SF600 Iron

N/A

2.13/1.755
4.350

N/A

142/109

202/155

250/176

287/199

300/204

Buick Ported P.A.E. Iron

N/A

2.15/1.75
-
No Pipe

N/A

78/58

143/113

213/164

262/190

283/207

297/212

Bulldog Alum

N/A

2.125/1.75

N/A

82/62

144/114

204/155

253/184

293/201

303/215

Bulldog CCM Alum

250/-

2.19/1.81

Bulldog Intial Cleanup Jim W Alum

N/A

2.125/1.75
-
No Pipe

N/A

79/72

153/130

210/175

270/197

313/215

328/228

337/237

-/246

Bulldog Ported Earick Racing Alum

N/A

101/-

162/-

234/-

344/-

349/-

380/-

Edelbrock Performer RPM 60049 SF1020 Alum

215/130

2.125/1.75

68/58

127/108

190/150

241/173

274/183

273/190

Edelbrock Performer RPM 60049 Mike Alum

N/A

2.125/1.75

N/A

68/55

130/107

194/144

251/164

278/172

283/175

281/175

Edelbrock Performer RPM 60049 George Alum

N/A

2.125/1.75

N/A

66/55

126/103

192/139

247/162

279/175

276/183

278/185

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Edelbrock Performer RPM 60049 CNC Competition Components Alum

N/A

2.125/1.75

N/A

74/55

164/107

237/152

289/188

321/215

323/224

326/227

329/227 @.750

Edelbrock Performer RPM Ported SF600 Alum

N/A

2.125/1.75

N/A

66/59

137/115

206/154

260/177

296/188

301/194

Edelbrock Ported Gessler Level 2 Alum

N/A

2.125/1.75

N/A

68/66

142/116

210/155

260/176

294/187

305/193

TA Performance Ported 455 Iron

N/A

2.13/1.75

N/A

250/180

TA Performance Rover/Buick Ported

N/A

2.02/1.60

N/A

75/55

134/111

188/145

240/168

250/177

260/182

TA Performance 350 CNC Competition Components

N/A

2.02/1.60
4.00
No Pipe

N/A

128/100

184/133

234/171

275/195

301/210

297/217

TA Performance Street Eliminator SF600

N/A

2.16/1.755

N/A

72/-

149/-

194/161

249/190

285/206

290/211

281/211

TA Performance Street Eliminator

N/A

2.26/1.755

N/A

70/59

140/112

194/161

249/190

285/206

290/211

281/211

TA Performance Street Eliminator Ported Jim Weise

N/A

2.16/1.755

N/A

76/56

162/124

236/179

289/210

327/238

334/250

TA Performance Street Eliminator Stage 1 Ported

263/179

2.26/1.755

50/57

149/122

214/167

276/197

329/226

361/237

TA Performance Street Eliminator Stage 1 Ported Gessler Level 2

N/A

2.16/1.755

69/56

142/119

205/167

258/197

297/217

313/225
@.550

TA Performance Street Eliminator Stage 1 Ported Gessler Level 3

N/A

2.16/1.755

N/A

70/61

144/112

208/165

266/194

310/214

328/226

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

TA Performance Street Eliminator Stage 1 Ported Level 4

263/179

2.26/1.755

N/A

50/57

149/122

214/167

276/197

329/226

362/237

TA Performance Street Eliminator Stage 2 Kerry SF600

N/A

2.16/1.755
4.375

N/A

72/-

149/-

218/-

273/-

298/-

295/-

300/-

TA Performance Street Eliminator Stage 2 Ported Kerry SF600

N/A

2.16/1.755
4.375
No Pipe

N/A

75/69

157/128

238/176

305/222

347/251

361/263

360/265

367/266

TA Performance Street Eliminator Stage 2 Ported Kerry SF600

N/A

2.16/1.755
4.375
2 1/8" Pipe

N/A

75/70

157/135

238/187

305/236

347/273

361/294

360/304

367/306

TA Performance TE Stage 2 Ported Alum

N/A

2.26/1.755
4.50

388/268

TA Performance Stage 1 Out of Box Jim Weise Alum

N/A

2.13/1.75

N/A

66/56

140/112

203/145

248/182

269/193

279/197

276/200

TA Performance Stage 1 Ported Jim Weise Alum

N/A

2.13/1.755

N/A

74/60

152/126

221/174

274/205

314/228

314/230

315/230

TA Performance Stage 1 Base Alum

N/A

2.13/1.755

N/A

280/200

TA Performance Stage 1 Ported Alum

N/A

2.13/1.755

N/A

350/205

TA Performance Stage 2 Alum

N/A

2.13/1.75

N/A

300/240

TA Performance Stage 2 Ported Alum

N/A

2.13/1.75

N/A

350/260

TA Performance Ported Alum

N/A

2.125/1.75

N/A

315/230

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

TA Performance Ported TriShield Alum

N/A

2.125/1.75

N/A

72/61

160/126

221/173

280/205

306/225

316/236

TA Performance Stage 3 Alum

N/A

2.25/1.80

330/255

TA Performance Stage 3 Ported Alum

N/A

2.30/1.80

385/270

TA Performance Stage 3 Ported Alum

250/-

2.225/1.81

N/A

350/233

360/263

TA Performance Stage 3 Alum Ported Bruce Kent

N/A

2.225/1.80

N/A

330/255

385/295

TA Performance Stage 4 Alum

N/A

2.25/1.80

325/230

TA Performance Stage 4 Alum

N/A

2.25/1.80

N/A

375/265

TA Performance Stage 4 Alum

N/A

2.25/1.80

N/A

76/65

147/129

218/179

266/222

321/247

362/260

TA Performance Stage 4 Ported Alum

N/A

2.30/1.80

395/270

TA Performance Stage 4 Ported Alum

N/A

2.20/-
4.40

N/A

74/-

154/-

225/-

281/-

335/-

369/-

378/-

TA Performance Stage 4 Ported Alum

N/A

2.26/-
4.40

N/A

70/-

140/-

204/-

269/-

325/-

360/-

385/-

TA TE2 Ported Alum

N/A

2.20/1.80

N/A

78/61

158/113

227/172

289/214

336/252

370/265

380/269

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.650

.700

.800

.850

Average

Cadillac MTS Iron

N/A

55/41

96/58

147/110

195/126

225/137

240/143

Cadillac Ported MTS Iron

N/A

68/57

137/105

191/137

243/175

268/192

285/204

286/208

288/210

Cadillac 250 '68 Mild Port MTS

N/A

2.11/1.77

N/A

67/59

128/101

182/121

226/150

249/181

263/196

Cadillac 902 '69

200/145

1.96/-

83/73

134/107

180/140

215/164

248/181

263/191

277/206

Cadillac 902 Ported Cadco

N/A

2.19/1.90

N/A

69/61

127/112

179/149

230/191

255/212

272/228

274/-

277/206

Cadillac Ported Potter Automotive Iron

N/A

2.19/1.84

320/240

Cadillac

185/124

2.00/1.625

119/87

162/129

214/149

237/160

240/162

Cadillac 493 '75

185/124

2.00/1.625

120

68/67

130/97

190/132

215/160

233/172

246/-

Cadillac 493 '75 Pocket Ported

N/A

2.00/1.625

N/A

94/80

148/124

186/150

217/173

246/183

255/189

Bulldog Performance Alum

N/A

71/57

136/102

171/140

230/170

270/193

294/209

296/216

286/222

Bulldog Performance Alum

N/A

2.19/1.84

88/63

146/110

203/145

242/178

276/202

296/224

Bulldog Performance Alum

260/-

2.19/1.84

65/61

125/117

178/159

238/203

285/219

307/235

302/242

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.650

.700

.800

.850

Average

Bulldog Performance Ported CPP Alum

N/A

2.19/1.77

360/-

Bulldog / MTS Ported Alum

N/A

2.25/1.86

N/A

345/268

MTS Alum

N/A

2.19/-
4.35

N/A

78/-

135/-

178-

222/-

258/-

274/-

MTS Ported Alum

N/A

2.19/-
4.35

N/A

88/-

136/-

193/-

244/-

281/-

318/-

336/-

338/-

MTS Ported Alum

271/-

2.19/-
4.35

N/A

73/-

145/-

210/-

276/-

327/-

360/-

350/-

MTS Ported Alum

273/-

2.25/1.81
4.35

74/-

145/-

208/-

271/-

324/-

362/-

380/-

353/-

MTS Ported Alum

N/A

2.25/1.81
4.35

N/A

170/118

233/160

279/188

318/218

351/235

363/249

375/-

MTS Ported Stage 3 Alum

N/A

2.19/1.84

N/A

73/63

133/114

192/157

246/189

299/215

330/236

341/250

327/258

MTS CNC highport hand finished JC Alum

N/A

2.25/-
4.35

N/A

80/-

137/-

195/-

251/-

305/-

340/-

359/-

375/-

403/-

Cadillac Performance Parts Alum

295/-

2.275/1.80

171/109

233/149

296/184

345/221

376/249

391/267

398/278

402/278

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

'53 331 ci Norm Schenck / Competition Fuel Systems

N/A

1.75/1.56
3.875
1 3/4" Pipe

N/A

52/45

72/59

93/72

111/86

125/99

140/110

155/118

161/125

164/128

'53 331 ci Pocket Ported Norm Schenck / Competition Fuel Systems

N/A

1.75/1.56
3.875
1 3/4" Pipe

N/A

55/45

86/63

108/81

133/101

155/115

165/127

173/136

180/142

185/147

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

4.0 CHRFAB

N/A

33mm/29mm

N/A

26/30

75/68

111/94

144/109

171/119

193/126

207/131

212/134

215/138

217/142

4.6 CHRFAB

N/A

33mm/29mm

N/A

39/29

81/67

122/98

157/123

186/134

208/141

218/146

219/150

222/153

225/154

4.6 Ported CHRFAB

N/A

33mm/29mm

N/A

40/29

83/59

124/92

159/121

190/137

218/150

239/160

255/176

266/183

273/187

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy Bow Tie

171/-

2.02/1.60

N/A

212/145

211/147

Chevy Bow Tie

178/-

N/A

221/138

Chevy Bow Tie 034 Meaux Racing Out of Box SF600 Iron

N/A

2.02/1.60
4.00
Pipe

N/A

119/108

171/140

206/146

230/147

217/149

219/149

Chevy Bow Tie 034 Ported Meaux Racing SF600 Iron

223/-

2.085/1.585
4.00
No Pipe

N/A

134/107

195/150

241/201

275/216

293/222

303/224

311/224

317/225

Chevy Bow Tie 034 Ported Meaux Racing Larger Bore SF600 Iron

223/-

2.085/1.585
4.125

N/A

138/107

199/150

246/201

279/216

296/222

307/224

316/224

322/225

Chevy Bow Tie Tri-Mark Iron

178/-

2.02/1.60

N/A

67/58

125/90

180/125

218/135

220/142

216/147

Chevy Bow Tie Tri-Mark Ported Stealth Iron

178/-

2.02/1.60

N/A

68/60

134/117

192/152

228/165

238/170

243/176

Chevy Bow Tie Tri-Mark Ported Super Stealth Iron

178/-

2.02/1.60

N/A

72/60

142/115

195/155

236/170

246/175

252/181

Chevy Bow Tie 2

N/A

250/174

Chevy Bow Tie Phase II Iron CCM

184/55

63/57

130/100

177/119

205/123

225/123

210/127

209/127

Chevy Bow Tie Vortec 185 CHW

185/64

2.00/1.55
-
No Pipe

62/49

123/96

172/124

214/137

233/144

227/148

228/153

Chevy Bow Tie Vortec 206 CHW

206/77

2.00/1.55
-
No Pipe

61/50

127/99

177/123

216/140

227/148

233/155

235/159

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy 041X Ported Meaux Racing SS 1990's era Iron

165/65

1.94/1.50
4.00
No Pipe

61.2

123/111

180/146

216/171

236/180

244/194

247/195

250/195

Chevy 081 Mild Ported Iron

N/A

1.94/1.60

N/A

127/103

179/136

208/151

226/164

229/170

Chevy 083 NPS Iron

N/A

1.94/1.50
4.016
No Pipe

N/A

57/48

113/99

156/133

178/140

187/141

187/143

Chevy 186 Fuelie Iron

161/65

2.02/1.60

60/38

113/76

159/110

182/125

187/135

188/140

Chevy 291 3-angle VJ Meaux Racing SF600 Iron

N/A

1.94/1.50
4.00
Pipe

N/A

100/88

155/124

189/142

191/142

193/146

Chevy 291 Bowl Ported exhaust Cleanup trmnatr Iron

N/A

2.02/1.60
4.00
No Pipe

N/A

60/53

125/101

181/138

216/163

227/183

227/190

Chevy 291 SS trmnatr Iron

162/65

1.94/1.50
4.06
No Pipe - Stahl 1/2" Adaptor

57.5

127/106

187/141

225/167

244/185

249/194

253/198

256/200

Chevy 292 Bill Jones Iron

N/A

2.02/1.60
-
No Pipe

N/A

61/56

120/98

164/123

190/130

206/132

212/119

Chevy 292 Ported Bill Jones Iron

N/A

2.06/1.635
-
No Pipe

N/A

68/57

141/117

189/171

222/189

245/201

256/207

Chevy 292 Ported Butch Elkins Iron

197.4/-

2.02/1.625

N/A

137/110

196/157

235/185

253/194

267/198

Chevy 292 Ported Lee Shepard SF600 Iron

N/A

2.04/1.60
4.00
Pipe

N/A

126/128

193/184

234/218

258/230

269/236

274/239

Chevy 292 Ported Rons Porting Service SF600 Iron

N/A

2.04/1.60
4.00
Pipe

N/A

118/120

173/157

210/183

240/218

261/224

274/227

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy 292 Ported MadCap Racing Heads SF600 Iron

194/-

2.035/1.60
4.00
Pipe

N/A

122/115

170/154

213/193

243/216

261/222

266/221

Chevy 292 Ported Meaux Racing SF600 Iron

197/-

2.055/1.60
4.00
Pipe

N/A

130/119

186/166

228/213

258/245

271/256

280/257

Chevy 292 Ported Meaux Racing SF600 Iron

209.6/-

2.055/1.60
4.00
Pipe

N/A

132/119

188/163

233/207

263/237

274/251

285/262

Chevy 292 Ported Meaux Racing SF600 Iron

213/-

2.08/1.60
4.00
Pipe

N/A

129/-

188/-

236/-

270/-

285/-

298/-

Chevy 292 Ported Joe Sherman Iron

N/A

2.08/1.60

N/A

204/141

234/177

261/202

281/214

288/217

291/217

Chevy 292 Ported 1980 NASCAR Iron

N/A

2.02/1.60
-
No Pipe

N/A

137/108

195/156

231/185

266/198

272/198

Chevy 416 Iron

165/59

1.84/1.50

Chevy 416 Bill Jones Iron

N/A

1.72/1.50
-
No Pipe

N/A

179/127

Chevy 416 Mild Ported Bill Jones Iron

N/A

1.72/1.50
-
No PIpe

N/A

197/172

Chevy 416 Meaux Racing Iron

N/A

1.84/1.50
4.00

N/A

99/90

144/118

175/132

185/137

184/137

186/137

Chevy 416 Ported Meaux Racing SS Iron

N/A

1.84/1.50
4.00

N/A

99/98

153/136

197/170

225/183

231/188

235/192

235/196

Chevy 434 Weingartner Racing Iron

N/A

2.02/1.60
4.125
No Pipe

N/A

67/54

126/104

175/126

209/132

213/134

216/133

216/134

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy 441 Iron CHP

155/62

1.94/1.50
-
No Pipe

55/45

110/80

160/112

194/127

201/136

203/139

Chevy 441 Iron CHP

155/62

1.94/1.50
-
Pipe

55/45

110/83

160/118

194/133

201/146

203/148

Chevy 461 Weingartner Racing Iron

N/A

2.02/1.60
4.125
No Pipe

N/A

66/55

131/108

185/137

222/162

240/174

236/176

234/175

Chevy 461 Iron

161/63

2.02/1.60

216/137

Chevy 461 Ported Iron

N/A

2.02/1.60
4.06

N/A

94/65

152/102

183/126

210/147

224/162

232/172

238/180

Chevy 461 Ported Creative Flow Management Iron

N/A

2.02/1.60
4.03
No Pipe

N/A

79/61

140/110

189/160

231/188

262/203

274/212

263/213

Chevy 461 Ported SS (Oval) Iron

165/65

2.02/1.60

M/A

260/200

Chevy 461X 3-angle VJ Meaux Racing SF600 Iron

173.5/-

1.94/1.50
4.00
Pipe

N/A

100/88

155/124

189/142

191/142

193/146

Chevy 461X C/ED Ported Meaux Racing SF600 Iron

N/A

2.055/1.60
4.00
Pipe

N/A

131/116

188/153

230/194

260/212

273/245

282/253

Chevy 462 Iron CCM

157/64

1.94/1.50
-
No Pipe

50/54

119/88

167/116

198/128

212/134

218/137

Chevy 462 Iron CCM

157/64

1.94/1.50
-
Pipe

50/54

119/91

167/121

198/134

212/139

218/142

Chevy 462 Bill Jones Iron

N/A

1.94/1.50
-
No Pipe

N/A

58/50

121/94

169/124

192/131

197/135

206/137

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy 462 Kendrick Auto

N/A

2.02/1.60

N/A

84/56

130/104

166/125

196/136

214/141

215/144

Chevy 462 Pocket Ported Kendrick Auto

N/A

2.02/1.60

N/A

81/55

127/109

169/136

202/159

223/179

226/187

Chevy 487X Chamber Bowl work VJ Brian W SF600 Iron

N/A

2.02/1.60
4.155

N/A

62/53

137/100

145/129

210/144

222/145

Chevy 487X Chamber Bowl some Port work VJ Meaux Racing SF600 Iron

N/A

2.055/1.60
4.00
Pipe

N/A

138/111

201/161

225/195

236/219

242/225

243/227

Chevy 492 Meaux Racing Out of Box SF600 Iron

N/A

2.02/1.60
4.00
Pipe

N/A

115/105

165/132

196/138

209/143

207/147

210/147

Chevy 492 Cast Heads Iron

157/62

2.02/1.60

69/57

130/107

173/125

198/137

206/141

209/141

Chevy 492 Ported Cast Heads Iron

N/A

2.02/1.60

N/A

62/56

129/109

180/141

217/166

238/174

244/181

246/185

Chevy 492 Tri-Mark Iron

161/-

2.02/1.60

69/57

129/108

172/124

196/141

207/142

210/143

Chevy 492 Ported Tri-Mark Stealth Iron

169/-

2.02/1.60

68/58

141/113

192/145

218/162

234/167

240/170

Chevy 882 Iron CCM

151/59

1.94/1.50
-
No Pipe

70/58

125/108

175/135

204/141

205/142

206/142

Chevy 882 Iron CCM

151/59

1.94/1.50
-
Pipe

70/59

125/109

175/136

204/143

205/144

206/145

Chevy Fast Burn 4298 GM Alum

202/78

2.00/1.55

62/55

136/104

187/133

232/158

266/180

275/193

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy Fast Burn 4298 Bob

202/78

2.00/1.55

N/A

133/98

183/129

225/150

254/171

244/179

248/184

Chevy Fast Burn Dr Js Performance

N/A

2.00/1.55

N/A

70/51

136/101

188/140

224/167

237/189

236/200

237/207

Chevy Fast Burn CNC Dr Js Performance

N/A

2.00/1.55

N/A

70/51

138/101

194/134

236/178

265/202

278/220

284/234

Chevy Fast Burn Harry CNC Alum

215/76

2.00/1.55

62/55

136/104

187/133

232/158

266/180

275/193

Chevy Fast Burn 7712 Out of Box Meaux Racing SF600 Alum

210/-

2.00/1.55
4.125
No Pipe

134/111

177/124

205/149

223/166

234/177

237/182

Chevy Fast Burn Off ZZ383 Out of Box Smithberg Racing Alum

210/78

2.00/1.55
4.03

64/-

134/-

191/-

234/-

266/-

253/-

Chevy Fast Burn Off ZZ383 VJ 2.02 Int Smithberg Racing Alum

210/78

2.02/-
4.03

N/A

72/-

148/-

191/-

236/-

270/-

259/-

Chevy Fast Burn Off ZZ383 Ported Smithberg Racing Alum

210/78

2.02/-
4.03

70/-

140/-

199/-

249/-

286/-

296/-

299/-

Chevy Turbo

N/A

201/177

Chevy L83 462624 Jonas

158/-

1.94/1.50

44/41

101/82

155/125

182/137

196/140

Chevy L98 113 Alum

163/58

1.94/1.50

62/-

116/-

161/-

185/-

195/-

198/-

Chevy L98 113 Alum

163/58

1.94/1.50

62/53

115/101

159/134

189/157

190/171

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy L98 Weingartner Racing Alum

N/A

1.94/1.50
4.125
No Pipe

N/A

60/70

114/108

174/152

199/152

205/166

207/168

Chevy L98 113 Ported Precision Motorsports Alum

N/A

2.02/-

N/A

87/-

144/-

180/-

218/-

235/-

243/-

Chevy L98 113 CNC TPIS Alum

N/A

2.00/1.56

55/40

122/112

193/154

242/181

270/197

262/205

Chevy L98 Alum

163/58

1.94/1.50

120/100

163/129

189/148

199/164

199/167

Chevy L98 Alum

163/58

1.94/1.50
-
No Pipe

N/A

56/49

120/96

160/123

186/140

196/155

199/157

Chevy L98 Hutter Alum

173/-

1.94/1.50

139/110

190/145

229/175

243/190

246/196

Chevy L98 CNC Chapman Alum

185/66

2.00/1.56
-
No Pipe

61/52

121/109

172/149

216/182

252/192

Chevy L98 Ported ET Performance Alum

184/-

2.00/1.55
4.03

62.5

67/52

129/104

187/146

228/175

242/188

247/193

Chevy Vortec Iron CHP

170/-

1.94/1.50

66/57

129/101

186/136

219/149

216/155

Chevy Vortec Ported Speier Racing Heads Iron

200/-

2.055/1.60

N/A

71/50

147/113

204/183

245/183

270/205

276/220

279/228

282/232

Chevy Vortec 062 Weingartner Racing Iron

N/A

1.94/1.50
4.125
No Pipe

N/A

73/61

144/113

202/145

236/158

233/162

233/165

Chevy Vortec 906 Weingartner Racing Iron

N/A

1.94/1.50
4.125
No Pipe

N/A

76/54

137/106

199/139

239/152

240/157

241/159

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy Vortec 906 NPS Iron

N/A

1.94/1.50
4.016
No Pipe

N/A

62/43

125/89

178/119

207/130

225/134

222/136

Chevy Vortec 906 Meaux Racing SF600 Iron

170/-

1.94/1.50
4.00

N/A

121/98

179/124

219/137

221/146

223/152

Chevy Vortec 906 Meaux Racing 3 Angle VJ and clean up SF600 Iron

170/-

1.94/1.50
4.00

N/A

134/107

187/142

223/157

221/163

Chevy Vortec 906 Ported Meaux Racing Level 2 SF600 Iron

N/A

2.055/1.60
4.00
No Pipe

N/A

144/119

192/170

236/195

264/207

265/213

271/216

Chevy Vortec 906 CHW Iron

170/64

1.94/1.50
-
No Pipe

63/44

127/93

178/125

212/140

229/144

224/146

223/147

Chevy Vortec 906 Ported CHW Iron

178/64

2.05/1.60
-
No Pipe

70/61

143/115

193/139

230/165

251/170

241/177

235/180

Chevy Vortec 906 Ported Smithberg Racing Street Bowl SSR work Iron

178/65

2.00/1.56
4.03
No Pipe

67/52

140/104

200/143

245/165

250/184

252/190

Chevy Vortec Scoggin-Dickey 170 Iron CHP

170/A

1.94/1.50

57/40

123/100

174/139

212/153

210/160

207/162

Chevy Vortec Scoggin-Dickey 180 Iron CHP

180/-

2.00/1.55

71/53

139/102

182/131

224/146

248/161

240/165

Chevy Vortec L30 059

N/A

1.84/1.50

N/A

68/47

128/103

179/138

205/152

221/163

Chevy Vortec L31 Iron

170/61

1.94/1.50

58/43

114/88

173/125

216/143

225/149

222/152

Chevy Vortec L31 885 Iron CCM

170/61

1.94/1.50
-
No Pipe

70/48

138/101

190/129

227/140

239/147

229/151

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy Vortec L31 885 Iron CCM

170/61

1.94/1.50
-
Pipe

70/49

139/105

190/137

227/151

239/160

229/162

Chevy Vortec L31 885 Ported Iron CHP

N/A

1.94/1.50

N/A

60/50

128/101

193/162

224/181

239/181

Chevy Vortec L31 Tri-Mark Iron

168/-

1.94/1.50

67/51

129/98

183/133

218/146

217/151

216/152

Chevy Vortec L31 Tri-Mark Ported Stealth Iron

173/-

1.94/1.50

N/A

68/58

134/117

192/145

224/146

232/170

238/171

Chevy Vortec L31 Tri-Mark Ported Super Stealth Iron

184/-

1.94/1.50

N/A

67/60

142/115

198/155

236/170

246/175

251/181

Chevy Vortec Ported McCoy

N/A

266/200

Chevy Vortec / Bow Tie 421 Small Port Iron

175/65

2.00/1.55

225/152

235/161

236/163

Chevy Vortec / Bow Tie 431 Large Port Iron

206/77

2.00/1.55

268/164

Chevy Vortec / Bow Tie Small Port Bob Iron

175/64

2.00/1.55

N/A

67/53

136/100

182/128

223/145

251/152

240/164

240/166

Chevy Vortec / Bow Tie Large Port Bob Iron

206/77

2.00/1.55

N/A

63/50

133/100

182/134

228/154

258/168

255/168

261/169

Chevy Vortec / Bow Tie Large Port Iron

215/84

2.00/1.55

Chevy 364 18 Deg 248 RCR Super Truck Alum

248/-

2.14/1.60

147/100

231/167

287/205

324/237

338/251

343/257

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy 580 18 Deg 245 RCR Super Truck Alum

245/-

2.15/1.625

54/65

148/124

223/180

281/223

325/238

343/244

346/247

Chevy 364 / 580 18 Deg 236 CNC Chapman Alum

236/-

2.135/1.625
-
No Pipe

52/65

71/54

159/108

224/182

273/222

305/238

314/250

323/260

Chevy 364 / 580 18 Deg 246 CNC Chapman Alum

246/-

2.15/1.625
-
No Pipe

52/65

68/52

159/112

227/175

281/218

319/235

333/247

342/255

Chevy 364 / 580 18 Deg 256 CNC Chapman Alum

256/-

2.18/1.625
-
No Pipe

52/66

72/54

161/108

233/182

286/222

321/238

344/250

348/260

Chevy 364 / 580 18 Deg 266 CNC Chapman Alum

266/-

2.18/1.625
-
No Pipe

52/66

71/51

151/114

226/180

271/213

323/240

353/248

358/255

363/260

Chevy 364 / 580 18 Deg 249 Ported Hutter Alum

249/-

2.15/1.625

53/64

151/117

232/163

293/224

322/244

343/254

347/261

Chevy 18 Deg Ported ET Performance Alum

257/-

2.15/1.60
4.03

N/A

74/49

159/114

231/177

288/219

323/238

341/246

Chevy 18 Deg 247RS CNC Chapman Alum

247/105

2.15/1.625
-
No Pipe

47.5

72/51

157/114

228/180

278/213

317/240

338/248

342/255

346/260

Chevy 18 Deg 255RS CNC Chapman Alum

255/105

2.18/1.625
-
No Pipe

47.5

71/51

150/114

226/180

277/213

323/240

347/248

351/255

354/260

Chevy 18 Deg 270RS CNC Chapman Alum

270/105

2.18/1.625
-
No Pipe

47.5

71/51

151/114

226/180

271/213

323/240

353/248

358/255

363/260

Chevy 18 Deg 235 CNC M2 Race Systems Alum

235/-

2.15/1.625
4.03

219/182

277/238

320/254

340/262

337/268

Chevy 18 Deg 255 CNC M2 Race Systems Alum

255/-

2.18/1.625
4.03

220/182

279/238

320/254

351/262

360/268

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy 18 Deg 270 CNC M2 Race Systems Alum

270/-

2.18/1.625
4.03

211/172

272/213

315/236

352/247

375/254

381/262

Chevy 18 Deg CNC Alum

N/A

2.20/1.625

N/A

72/55

151/111

220/158

275/218

317/237

353/250

367/256

371/262

Chevy 18 Deg Ported Speier Racing Heads I-50 E-50 Alum

250/-

2.15/1.60
4.155

148/119

219/170

273/208

314/236

348/244

364/255

368/260

370/263

372/265

Chevy 15 Deg CNC Alum

N/A

2.15/1.625

N/A

72/53

154/111

227/152

227/209

326/240

349/253

353/259

358/262

Chevy 15 Deg CNC M2 Race Systems

245/-

2.18/1.625
4.03

Chevy 615x 15 Deg 261 CNC Chapman Alum

261/100

2.18/1.625
-
No Pipe

69/52

149/110

215/173

278/215

329/236

363/249

379/258

391/261

Chevy 615 15 Deg CNC Rons Porting Service Alum

278/-

2.18/1.625

158/119

227/170

287/214

335/245

360/260

366/270

372/274

Chevy 15X 15 Deg 246 CNC Slawko Alum

246/102

2.15/1.60

348/265

350/267

Chevy / GM Splayed Valve 12 Deg MBE Port

N/A

2.23/1.55
4.155
No Pipe

N/A

140/102

221/150

294/186

354/232

398/266

414/273

415/280

425/278

427/-

Chevy / GM Splayed Valve 10 Deg MBE Port

N/A

-
-
No Pipe

N/A

436/-

Chevy / GM Splayed Valve Rolled to 10 Deg Pro Stock Truck Darin Morgan

N/A

2.25

N/A

153/-

225/-

307/-

371/-

409/-

433/-

451/-

459/-

463/-

Chevy Canted Valve 10 Deg Pro Stock Truck '01 - Darin Morgan Alum

N/A

2.23/-
4.20

145/-

215/-

285/-

356/-

400/-

415/-

425/-

435/-

442/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy 517 Canted Valve CNC Chapman Alum

294/-

2.18/1.625
-
No Pipe

71/54

157/114

236/179

299/224

331/239

355/249

371/255

375/258

Chevy Canted Valve Ported ET Performance Alum

285/-

2.185/1.625
4.155

35-72

64/47

148/100

228/142

318/183

375/214

402/237

414/250

419/258

422/263

Chevy Canted Valve Ported Meaux Racing SF600 Alum

N/A

2.20/1.55
4.125
No Pipe

N/A

140/99

213/150

287/192

335/228

370/250

387/261

398/267

Chevy / GM SB2.2 011 278 Ported GPTech Busch Alum

278/-

2.17/1.625

152/104

235/164

300/202

348/233

379/249

373/258

Chevy / GM SB2.2 011 282 Ported GPTech Alum

282/-

2.18/1.625

141/97

226/147

302/188

355/224

384/252

390/260

Chevy / GM SB2.2 011 275 Ported Neal Alum

275/-

2.15/1.60

148/109

235/148

292/200

335/221

351/238

356/253

Chevy / GM SB2.2 011 282 Ported Neal Alum

282/-

2.15/1.625

136/104

217/139

288/180

335/219

352/237

352/246

Chevy / GM SB2.2 011 287 Ported Neal Alum

287/-

2.17/1.60

143/95

222/137

293/180

340/213

374/230

388/243

Chevy / GM SB2.2 Ported ET Performance Alum

N/A

2.215/1.60
4.155

N/A

76/56

151/114

229/169

300/214

363/240

390/250

397/254

400/255

Chevy / GM SB2.2 267 CNC Chapman Alum

267/-

2.17/1.625
-
No Pipe

70/52

159/112

238/171

301/207

347/233

367/249

369/259

373/262

Chevy / GM SB2.2 292 CNC Chapman Alum

292/-

2.17/1.625
-
No Pipe

65/52

145/113

236/173

307/207

367/233

385/249

389/259

391/262

Chevy / GM SB2.2 Drag MBE Port 1 Alum

312/-

2.19/1.59
4.15
No Pipe

N/A

70/45

156/101

240/139

320/188

377/230

413/255

426/266

439/272

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy / GM SB2.2 Drag MBE Port 2 Alum

312/-

2.19/1.59

N/A

450/-

Chevy / GM SB2.2 Drag MBE Port 3 I-55 E-55 SF600 Alum

312/-

2.18/1.60
4.155
No Pipe

N/A

61/50

142/107

224/145

305/191

364/230

406/257

428/270

437/278

442/283

Chevy / GM SB2.2 Hendricks - Meaux Racing SF600 Alum

N/A

2.18/1.60
4.125
No Pipe

N/A

142/107

219/146

289/184

337/211

359/236

355/252

356/263

Chevy / GM SB2.2 Hendricks - Meaux Racing SF600 Alum

N/A

2.20/1.60
4.125
No Pipe

N/A

142/107

219/146

289/184

337/211

355/252

356/263

398/267

Chevy / GM SB2.2 Hendricks - Darin Morgan SF600 Alum

N/A

2.18/1.60
-
No Pipe

N/A

132/90

214/163

299/200

386/240

410/260

425/273

442/278

449/282

451/287

Chevy / GM SB2.2 DEI - Darin Morgan SF600 Alum

N/A

2.18/1.60
-
No Pipe

N/A

158/101

231/142

310/180

365/212

392/244

397/263

404/269

Chevy / GM SB2.2 NASCAR '02 - Darin Morgan Alum

N/A

2.18/-
4.185

161/-

236/-

312/-

371/-

402/-

405/-

412/-

415/-

418/-

Chevy / GM SB2.2 NASCAR '05 - Darin Morgan Alum

N/A

2.18/-
4.185

145/-

225/-

300/-

375/-

415/-

426/-

443/-

451/-

453/-

Chevy / GM SB2.2 Darin Morgan Alum

N/A

2.20/-
4.20

152/-

226/-

305/-

375/-

418/-

429/-

446/-

453/-

456/-

Chevy / GM SB2.2 Comp Elim - Darin Morgan Alum

N/A

2.07/-
4.00

29.5

136/-

227/-

287/-

348/-

360/-

371/-

382/-

384/-

388/-

Chevy / GM SB2.2 CNC RFD Alum

N/A

2.20/1.58

N/A

64/61

140/115

228/159

312/198

368/229

402/253

418/265

429/276

436/283

Chevy / GM SB2.2 CNC RFD Alum

N/A

2.20/1.58

156/109

240/145

322/200

376/231

417/262

422/273

441/280

453/282

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy / GM ROx 667 Weld Tech Alum

288/-

2.18/1.61

147/119

224/174

293/213

336/241

373/254

382/262

386/265

Chevy / GM RO7 - Darin Morgan SF600 Alum

N/A

2.18/-

N/A

143/-

221/-

307/-

372/-

408/-

428/-

446/-

453/-

459/-

AeroHead Iron CHP

178/70

1.94/1.50

60/48

116/101

162/141

219/171

225/185

226/188

AFR 180 Street Old SF600 Alum

180/-

2.02/1.60
4.06
1 3/4" Pipe

68-74

129/108

195/156

240/178

255/190

260/194

AFR 180 Comp Old SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

144/102

206/152

245/190

260/204

268/211

AFR 180 Street SF600 Alum

180/64

2.02/1.60
4.06
1 3/4" Pipe

65-75

138/110

198/158

240/190

260/207

AFR 180 Comp SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

65-75

142/115

203/165

247/200

270/217

AFR 190 Alum CCM

N/A

2.02/1.60

N/A

71/67

144/121

208/157

244/188

262/202

261/211

AFR 190 Vortec Alum

190/64

2.02/1.60
4.06
1 3/4" Pipe

135/110

213/158

253/190

276/207

AFR 190 Street SF600 Alum

190/64

2.02/1.60
-
No Pipe

68-74

129/108

195/156

240/178

260/190

262/194

AFR 190 Comp SF600 Alum

N/A

2.02/1.60

135/110

201/157

243/180

264/195

276/208

AFR 195 OLD Out of Box Weingartner Racing Alum

195/-

2.02/1.60
4.125
No Pipe

N/A

73/53

146/108

210/150

258/176

279/186

273/191

275/192

279/193

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 195 Street SF600 Alum

195/64

2.02/1.60
4.06
1 3/4" Pipe

68-74

132/108

198/156

240/178

260/190

262/194

AFR 195 Comp SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

135/110

201/157

249/180

275/195

280/208

AFR 195 Eliminator Street SF600 Alum

195/-

2.05/1.60

137/110

194/158

240/190

270/207

286/215

AFR 195 Eliminator David Vizard Alum

195/65

2.05/1.60

75/57

139/113

198/160

250/190

277/207

292/216

295/220

AFR 195 Eliminator Comp SF600 Alum

195/64

2.08/1.60

140/115

202/165

248/200

280/217

300/225

AFR 195 Eliminator Comp Out of Box Hemphill Racing SF600 Alum

195/-

2.08/1.60
4.04
No Pipe

65/53

150/116

211/175

255/208

285/219

305/219

AFR 195 Eliminator Street V2 SF600 Alum

195/64

2.05/1.60
4.06
1 3/4" Pipe

55/65

146/119

201/166

247/197

275/213

AFR 195 Eliminator Comp V2 SF600 Alum

195/64

2.08/1.60
4.06
1 3/4" Pipe

65/75

151/125

211/172

260/207

293/224

308/233

AFR 195 Enforcer SF600 Alum

195/74

2.02/1.60

133/104

188/138

226/158

250/186

251/197

AFR 210 Eliminator #1103 Speier Racing Heads Alum

N/A

2.08/-
4.155

N/A

141/-

200/-

249/-

285/-

300/-

294/-

290/-

AFR 210 Eliminator Dr Js Performance Alum

N/A

2.10/1.625
-
1 3/4" Pipe

N/A

70/57

147/112

201/157

245/190

266/201

267/206

267/210

AFR 210 Eliminator CNC Dr Js Performance Alum

N/A

2.10/1.625
-
1 3/4" Pipe

N/A

76/58

148/117

203/165

252/210

286/234

304/250

315/258

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 210 Race Old SF600 Alum

210/80

2.08/1.60
4.125
1 7/8" Pipe

135/112

197/145

245/185

273/205

282/215

285/220

AFR 210 Race Old Meaux Racing Alum

N/A

2.08/1.60
-
No Pipe

N/A

140/110

198/152

247/178

284/192

289/197

296/201

294/203

AFR 210 Race Old Ported Meaux Racing Alum

N/A

2.08/1.60
-
No Pipe

N/A

161/119

218/159

262/188

293/203

307/208

312/213

315/215

316/216

AFR 210 Street SF600 Alum

210/80

2.08/1.60
4.125
1 7/8" Pipe

139/110

199/158

249/192

279/210

295/220

301/224

AFR 210 Comp SF600 Alum

210/80

2.08/1.60
4.125
1 7/8" Pipe

147/120

206/166

257/214

290/225

308/235

312/240

AFR 210 CNC Meaux Racing Out of Box Alum

210/80

2.08/1.60
4.00
No Pipe

N/A

130/115

185/154

233/182

270/196

280/205

284/212

283/216

AFR 210 CNC Out of Box Alum

210/80

2.08/1.60

N/A

144/118

202/167

249/198

278/207

284/210

280/212

AFR 210 CNC Out of Box Weingartner Racing Alum

210/-

2.08/1.60
4.125
No Pipe

N/A

70/55

140/111

199/150

248/185

276/206

282/216

291/221

289/224

AFR 210 massaged Speier Racing Heads Alum

208/-

2.08/1.6125

161/119

218/159

262/188

293/203

307/208

312/213

315/215

316/216

AFR 210 Race V2 SF600 Alum

210/80

2.08/1.60
4.06
1 3/4" Pipe

65-75

145/110

199/158

255/192

292/210

309/220

AFR 210 Comp V2 SF600 Alum

210/80

2.08/1.60
4.06
1 3/4" Pipe

65-75

147/120

201/166

257/214

296/225

318/235

AFR 220 Race SF600 Alum

220/80

2.08/1.60
4.125
1 7/8" Pipe

132/112

190/145

248/185

280/205

286/215

292/220

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 220 Comp SF600 Alum

220/80

2.08/1.60
4.125
1 7/8" Pipe

135/112

198/150

255/190

290/207

298/220

303/230

AFR 220 Eliminator Comp SF600 Alum

220/80

2.10/1.60

150/126

207/178

260/215

296/236

322/247

331/251

AFR 220 Eliminator Comp Out of Box Meaux Racing SF600 Alum

220/-

2.10/1.60
4.125
No Pipe

N/A

145/117

195/171

244/207

283/223

303/230

304/233

303/235

AFR 220 Eliminator Race Alum

220/80

2.10/1.60
4.125
1 7/8" Pipe

65-75

155/116

210/162

260/204

295/220

312/229

AFR 220 Eliminator Comp Alum

220/80

2.10/1.60
4.125
1 7/8" Pipe

65-75

145/120

207/166

263/214

299/225

324/240

329/245

AFR 227 Race Old SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

135/112

192/145

250/185

288/205

292/215

295/220

AFR 227 Comp Old SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

138/112

207/150

258/190

294/207

302/220

309/230

AFR 227 Street 60/40 SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

148/114

210/162

259/204

292/220

305/229

AFR 227 Comp 60/40 SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

153/120

214/167

265/214

298/230

315/238

AFR 227 Comp 60/40 Out of Box Alum

N/A

2.10/1.60
-
No Pipe

N/A

154/114

208/165

264/205

304/223

325/232

AFR 227 Eliminator CNC Out of Box Weingartner Racing Alum

210/-

2.10/1.60
4.125
No Pipe

N/A

75/61

160/123

217/170

269/208

303/220

322/227

321/233

322/234

AFR 227 Weingartner Racing Newer Alum

N/A

2.10/1.60
4.16
No Pipe

N/A

72/53

153/110

217/152

265/188

301/209

322/224

328/229

334/235

336/238

338/240

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 227 Street 60/40 V2 SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

65-75

148/114

210/162

261/204

296/220

312/229

318/237

AFR 227 Comp 60/40 V2 SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

65-75

152/120

212/167

265/214

300/230

319/238

327/243

AFR 235 Eliminator CNC 60/40 SF600 Alum

235/80

2.125/1.60
4.125
1 7/8" Pipe

70-80

159/120

221/175

270/214

305/235

324/247

334/254

340/256

AFR 235 Eliminator CNC Out of Box Weingartner Racing Alum

235/-

2.125/1.60
4.125
No Pipe

79/58

169/117

236/172

274/205

306/221

322/231

333/237

339/241

341/245

AFR 235 Out of Box Dr Js Perfomance Alum

235/-

2.125/1.60
4.155

66/-

144/-

209/-

259/-

290/-

312/-

323/-

329/-

327/-

319/-

AFR 235 Out of Box CHW Alum

235/-

2.125/1.60
-
No Pipe

N/A

72/58

162/110

216/167

260/185

292/205

308/216

319/221

327/224

AFR 23 Deg 215 RR SF600 Alum

215/80

2.10/1.60
4.125
1 7/8" Pipe

150/112

220/150

276/190

308/207

315/220

325/230

AFR 245 CNC 60/40 Alum

245/80

2.125/1.60

N/A

165/120

232/175

278/214

310/235

330/247

341/252

350/-

AFR 245 Eliminator CNC Alum

245/80

2.125/1.60
4.125
1 7/8" Pipe

70-80

165/128

232/181

278/214

310/235

330/247

341/254

350/256

AFR 18 Deg GM SF600

243/100

147/109

219/160

273/204

319/230

329/246

340/255

AFR 285 15 Deg Alum

285/-

2.16/1.60

50-53

AFR 305 15 Deg I-55 E-55 Alum

305/-

2.20/1.60

50-53

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 325 13.5 Deg Alum

325/-

2.236/1.595
-
1 7/8" Pipe

141/114

211/160

286/196

347/225

398/253

438/276

452/298

453/309

AJPE 23 Deg 250

250/-

2.15/1.525
4.03
No Pipe

148/106

221/153

281/193

318/223

328/232

336/238

347/-

AJPE 23 Deg 283

283/-

2.18/1.60
4.125
No Pipe

142/103

221/143

281/205

325/222

347/230

364/238

369/248

374/-

AJPE 18 Deg 250

250/-

2.125/1.60
4.03
No Pipe

N/A

145/114

216/164

267/217

303/243

325/251

336/255

AJPE 18 Deg 270

270/-

2.18/1.60
4.125
No Pipe

N/A

148/114

225/164

275/217

314/243

352/251

356/255

AJPE 18 Deg 279

279/-

2.20/1.625
4.125
No Pipe

N/A

143/111

223/166

278/225

319/245

353/255

368/260

AJPE 12 Deg 280 Weingartner Racing Brez

280/-

2.10/1.625
4.155
No Pipe

N/A

68/46

129/78

201/123

272/167

323/195

354/216

358/231

359/240

AJPE 13 Deg Canted Valves Billet

344/114

2.25/1.65
4.125
2.1" Pipe

125/105

196/159

268/216

326/255

375/284

410/305

420/319

All PRO II-13 Ported Jones Engineering Alum

N/A

2.20/1.625

N/A

165/124

245/204

299/248

343/272

364/278

386/292

All PRO RE-13 Ported Jones Engineering Alum

N/A

2.20/1.625

146/110

221/161

291/216

348/239

388/248

408/251

409/253

All PRO RE-13 Ported Jones Engineering Alum

N/A

2.20/1.625

136/101

222/154

295/209

354/239

395/257

415/266

422/273

428/277

All PRO RE-18 Ported Rons Porting Servive Alum

274/-

2.15/1.625

42-57

165/128

239/183

290/236

318/268

341/274

354/280

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

All PRO RE-15 Ported Alum

N/A

2.19/1.60

N/A

164/128

228/211

281/247

327/268

353/278

369/282

All PRO RE-15 Ported Alum

N/A

2.20/1.625

N/A

146/117

220/187

277/230

332/248

365/258

382/264

384/267

All PRO LM-13 Deg Ported Alum

270/-

2.18/1.60

35-50

155/120

232/180

296/230

340/246

362/255

372/263

All PRO LM-13 Deg Ported Alum

278/-

2.18/1.625

35-50

150/124

232/204

298/248

342/272

367/278

378/292

All PRO 13 Deg CNC MBE Sprint Car Alum

N/A

68/47

135/96

211/152

290/202

344/239

382/259

397/271

406/278

413/280

420/281

All PRO 13 Deg CNC Jones Engineering Alum

282/-

2.18/1.625

147/112

232/164

306/223

351/246

386/252

392/258

All PRO 13 Deg CNC Jones Engineering Alum

292/-

2.20/1.60

150/113

228/164

290/219

339/246

374/256

391/262

396/266

All PRO 305-4 13 Ported Alum

305/-

2.25/1.60

N/A

159/115

223/192

284/239

343/261

382/275

404/283

414/287

All PRO 13.5 Deg CNC Jones Engineering 75/135 Alum

306/-

2.23/1.60

148/117

231/169

297/218

346/246

378/258

392/265

All PRO 13.5 Deg CNC Jones Engineering 95/150 Alum

306/-

2.23/1.60

138/117

213/169

279/218

333/246

383/258

410/265

418/268

All PRO 272 22 Deg Ported Jones Engineering Alum

278/-

2.18/1.60

149/118

217/172

276/221

321/239

357/246

371/251

All PRO 23 Deg Ported Alum

219/-

2.10/1.60

60-74

151/109

219/165

266/221

288/243

308/250

314/253

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

All PRO 23 Deg Ported Jones Engineering Alum

242/-

2.125/1.60

156/108

210/169

266/216

311/230

333/238

340/243

All PRO 23 Deg Ported Kelford Cams 360 SprintCar Alum

N/A

2.125/1.625

N/A

88/47

162/104

224/158

268/222

300/239

324/247

331/255

All PRO 23 Deg Ported Rons Porting Service Alum

245/-

2.18/1.625

153/123

212/172

272/210

322/239

358/251

379/258

382/261

All PRO 23 Deg Rolled to 16.8 Deg Ported BES Alum

288/-

2.18/1.625

43.5

114/91

205/176

268/233

314/262

353/286

374/302

381/311

381/317

All PRO 23 Deg RR 245 Ported BES Alum

N/A

2.18/1.625
4.155

N/A

122/112

187/165

250/218

301/248

339/264

362/274

368/279

371/280

All PRO 23 Deg RR 245 Ported BES Alum

N/A

2.18/1.60

N/A

128/111

193/167

248/222

300/258

339/277

363/286

370/290

370/292

369.5/292

All PRO 23 Deg RR Ported Weingartner Racing Alum

275/-

2.18/1.60
4.155
No Pipe

N/A

68/55

138/117

207/159

270/192

308/215

345/233

365/240

375/248

378/252

385/254

Avenger 180 23 Deg Alum

180/72

2.02/1.60

60/68

64/60

128/110

178/150

227/188

258/204

270/215

Avenger 190 23 Deg Alum

190/-

2.02/1.60

60/67

64/61

128/115

181/150

227/190

260/209

277/227

280/231

Avenger 210 23 Deg Alum

210/80

2.055/1.60

60/67

69/61

139/115

194/150

240/190

277/209

299/227

304/234

Avenger 15 Deg Alum

290/90

2.18/1.60

61/69

79/62

159/120

223/167

290/218

335/232

361/240

372/248

381/255

BMF 18 Deg 238 CNC Alum

238/90

2.15/1.60

241/178

299/223

340/236

348/243

350/247

351/250

353/251

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

BMF 18 Deg 248 CNC Alum

248/90

2.15/1.60

239/178

302/223

344/236

352/243

362/247

365/250

365/251

BMF 18 Deg 260 CNC Alum

260/90

2.15/1.60

242/178

300/223

342/236

361/243

369/247

370/250

370/251

BMF 18 Deg CNC OLD Alum

268/90

2.18/1.60

N/A

145/131

208/177

266/215

313/242

338/253

351/260

368/262

BMF 18 Deg 268 CNC Alum

268/90

2.18/1.60

242/178

300/223

342/236

369/243

375/247

379/250

382/251

BMF 18 Deg 268 CNC Out of Box Meaux Racing SF600 Alum

268/90

2.18/1.60
4.125
No Pipe

N/A

149/111

218/158

272/199

317/229

337/241

339/-

343/-

349/265

BMF SBX 4.5 Bore CNC Darin Morgan SF600 Alum

N/A

2.30/1.65
-
No Pipe

N/A

159/-

244/-

319/-

386/-

432/-

447/-

463/-

469/-

478/-

Brodix CARB Legal Alum

170/-

2.02/1.60

132/93

185/134

217/159

215/174

212/180

Brodix 305 Sprint Race Saver Ported Smithberg Racing

N/A

1.94/1.60
3.91
No Pipe

N/A

77/52

151/95

203/132

219/160

234/176

239/184

Brodix SP CH Alum

215/-

2.08/1.60

121/92

176/134

223/158

249/172

261/179

269/182

Brodix DS 225 23 Deg Alum

225/-

2.08/1.60

N/A

142/115

212/154

260/183

287/199

302/204

304/210

Brodix DS 23 Deg Ported Weingartner Racing I-45 E-45 Alum

235/-

2.10/1.60
4.155
No Pipe

N/A

75/49

157/109

208/153

252/188

288/208

310/218

322/221

320/235

320/243

326/246

Brodix BP HH RO 229 23 Deg 40/60 I-50 E-45 Alum

229/-

2.125/1.60

139/122

205/166

257/200

300/219

319/227

325/236

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix BP HH RO 225 23 Deg 40/60 I-52 E-55 Alum

225/-

2.15/1.57

N/A

142/103

205/143

259/182

303/206

327/222

335/238

Brodix BP HH RO 234 23 Deg 40/60 I-52 E-55 Alum

234/-

2.15/1.57

N/A

130/103

199/143

258/182

305/206

332/222

345/238

Brodix BP 10 CX 21 Deg 75/90 CNC I-50 E-55 Alum

258/-

2.125/1.60

154/77

219/132

271/166

323/198

339/219

349/242

Brodix HH 234 Out of Box Weingartner Racing Alum

234/-

2.15/1.57
4.155
No Pipe

N/A

132/95

186/134

248/176

293/204

318/219

339/229

338/235

335/238

335/-

Brodix -8 STD FSH CARB Legal Alum

185/-

2.08/1.60

134/106

191/135

229/152

233/159

Brodix -8 STD or SP 23 Deg Alum

194/-

2.08/1.60
-
No Pipe

134/109

191/138

230/155

240/161

Brodix -8 PRO 23 Deg Alum

185/-

2.02/1.60
-
No Pipe

134/106

191/135

230/153

240/160

Brodix -8 STD 23 Deg Ported ET Performance Alum

215/-

2.08/1.60
4.155

69/53

136/92

198/175

248/207

283/227

287/237

290/240

Brodix -10 STD or SP 23 Deg Alum

210/-

2.08/1.60

145/109

195/139

240/155

253/161

262/166

262/168

Brodix -10 WP SP RI 23 Deg Jones Engineering 40/60 I-45 E-45 Alum

240/-

2.125/1.60

151/114

223/156

273/207

304/230

324/240

332/245

Brodix -10 WP SP X - 231 23 Deg Alum

231/-

2.10/1.60

152/115

222/167

268/210

297/227

313/230

320/234

Brodix -10 WP SP X - 233 23 Deg Alum

233/-

2.125/1.60

151/115

223/167

269/210

300/227

318/230

329/234

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix -10 WP SP X AP 23 Deg Alum

230/-

2.125/1.60

156/107

218/155

271/194

309/239

336/251

352/258

Brodix -10 CNC Jones Engineering Alum

240/-

2.125/1.60

151/114

223/156

273/207

304/230

324/240

332/245

Brodix -11 STD or SP 23 Deg Alum

221/-

2.08/1.60

132/109

188/138

232/155

260/161

256/166

258/167

Brodix -11 STD X 23 Deg 40/60 Alum

225/-

2.08/1.60

133/90

191/126

235/158

272/184

283/200

285/208

Brodix -11 SP X ASCS/SUPR Alum

215/-

2.08/1.60

130/100

187/132

232/162

265/185

267/201

270/210

Brodix -11 SP X ASCS 3V Performance Alum

N/A

2.08/1.60

N/A

74/67

156/125

212/172

255/193

272/201

280/201

Brodix -11 SP X ASCS Speier Racing Heads Worked Alum

N/A

2.08/1.60

N/A

142/-

211/-

260/-

290/-

299/-

292/-

291/-

Brodix -11 SP X ASCS CNC smeg Alum

N/A

2.08/1.60

N/A

132/-

186/-

235/-

277/-

300/-

309/-

310/-

Brodix -11 SP X 23 Deg 40/60 Alum

225/-

2.08/1.60

133/103

191/137

235/166

272/188

283/201

285/211

Brodix -11 KC SP X 23 Deg 40/60 Alum

231/-

2.10/1.60

146/113

203/149

253/177

293/198

314/228

316/236

Brodix -12 WP SP RI - 247 15 Deg CNC 40/60 Alum

247/-

2.15/1.60

152/120

230/170

284/216

316/233

326/240

330/248

Brodix -12 WP SP RI - 262 15 Deg CNC 40/60 Alum

262/-

2.15/1.60

150/120

228/170

282/216

322/233

330/240

335/248

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix -12 WP SP RI MC 15 Deg CNC 58/107 Alum

262/-

2.17/1.60

155/117

224/177

282/218

329/231

335/240

347/247

Brodix -12 KC SP B 15 Deg CNC 40/60 Alum

287/-

2.15/1.60

155/120

230/168

285/216

320/232

343/240

354/247

Brodix -12 STS SP WB MC 15 Deg CNC 70/125 Alum

305/-

2.20/1.60

159/106

233/145

290/190

334/221

361/235

372/247

Brodix -12 15 Deg 288 CNC Chapman Alum

288/-

2.20/1.625
-
No Pipe

58.5

73/51

163/112

238/173

293/219

325/238

362/242

363/251

Brodix -12 RVR 15 Deg Jones Engineering70/125 Alum

285/-

2.18/1.60

152/108

231/149

292/204

339/236

360/245

375/252

375/255

Brodix -12X12 WP SP B - 275 12 Deg CNC Alum

275/-

2.15/1.60

166/112

236/156

293/188

333/237

344/249

346/255

Brodix -12X12 WP SP B - 286 12 Deg CNC Alum

286/-

2.18/1.60

154/112

228/156

289/188

334/237

357/249

360/255

Brodix -12X12 WP SP B - 296 12 Deg CNC Alum

296/-

2.18/1.60

165/112

230/156

291/188

338/237

358/249

376/255

Brodix -12X12 WP SP B - 299 12 Deg CNC Alum

299/-

2.20/1.60

154/119

228/158

290/216

343/245

375/254

388/258

399/263

Brodix -12X12 15 Deg 272 CNC Chapman Alum

272/-

2.18/1.625
-
No Pipe

73/54

160/109

234/171

292/210

330/232

355/241

359/250

368/255

Brodix -12X12 15 Deg 292 CNC Chapman Alum

292/-

2.20/1.625
-
No Pipe

61.5

73/54

151/109

224/171

287/210

337/232

365/241

383/250

393/255

Brodix -13 KC 13 Deg Ported 85/134 Alum

283/-

2.18/1.625

159/113

239/164

307/213

352/236

359/247

364/258

370/263

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix -13 13 Deg Ported Weingartner Racing I-50 E-50 Alum

N/A

2.20/1.60
4.155
No Pipe

63/45

138/105

221/170

295/225

349/252

390/265

397/273

400/278

407/281

413/282

Brodix -13 13 Deg Ported Weingartner Racing I-55 E-55 Alum

N/A

2.22/1.58
4.155
No Pipe

70/48

144/108

228/164

301/211

354/242

392/254

395/262

401/268

417/271

423/274

Brodix 13 Deg LMD CNC Rons Porting Service I-50 E-45 85/134 Alum

285/-

2.18/1.625

161/126

243/182

308/220

353/248

378/262

382/270

385/275

387/278

Brodix 13 Deg LMD Jones Engineering I-45 E-45 85/134 Alum

282/-

2.18/1.625

158/110

234/156

302/219

349/243

371/260

377/267

385/271

Brodix 13 Deg CNC Jones Engineering Alum

282/-

2.18/1.60

158/110

234/156

302/219

349/243

371/260

377/267

385/271

Brodix -15 WP SP / STD 15 Deg Ported 58/107 Alum

267/-

2.18/1.625

156/111

225/164

275/223

327/245

358/254

362/259

Brodix 15 Deg CNC Alum

262/-

2.15/1.60

153/120

228/170

282/216

322/233

332/240

340/252

Brodix 15 Deg CNC Jones Engineering I-45 E-45 Alum

261/-

2.18/1.60

156/111

225/164

275/223

327/245

358/254

362/259

Brodix 15 Deg CNC Rons Porting Service Alum

297/-

2.20/1.60

155/125

230/175

290/210

340/232

375/241

386/251

Brodix -16 KC STD 16 Deg 58/107 Alum

269/-

2.18/1.625

142/119

211/161

277/198

332/233

367/252

379/261

Brodix 16 Deg CNC Jones Engineering I-45 E-45 Alum

267/-

2.18/1.60

161/101

231/149

291/211

337/237

360/253

371/263

375/268

Brodix -18 STD X 18 Deg 40/60 Alum

244/-

2.14/1.60

157/106

212/145

260/179

303/195

319/205

325/211

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix -18 STD X 18 Deg M2 Race Systems CNC 40/60 Alum

254/-

2.14/1.60
4.125

145/110

214/154

261/206

303/224

328/231

336/237

Brodix -18 SP X 18 Deg 40/60 Alum

244/-

2.14/1.60

157/122

212/164

260/200

303/217

319/226

325/233

Brodix -18 SP X 18 Deg CNC M2 Race Systems 40/60 Alum

253/-

2.14/1.60
4.125

145/119

214/158

261/196

303/232

328/243

336/250

Brodix -18 SP X 18 Deg Ported Jason 40/60 Alum

258/-

2.15/1.60

N/A

144/127

203/175

261/216

306/233

334/240

351/245

359/248

Brodix -18 SP 18 Deg 262 CNC Chapman 40/60 Alum

262/-

2.15/1.625
-
No Pipe

72/52

161/108

225/174

273/223

314/246

335/257

348/263

Brodix 18 Deg Ported Straub Technologies 40/60 Alum

252/66

2.15/1.60
4.155

145/105

215/160

265/201

309/227

344/241

351/251

356/260

355/264

356/270

Brodix -18 WP SP C 18 Deg CNC 58/107 Alum

254/-

2.18/1.625

157/112

230/167

280/209

329/227

360/238

367/245

Brodix -18 KC SP C 18 Deg 58/107 Alum

254/-

2.18/1.625

163/119

232/172

288/214

335/233

351/242

360/250

Brodix -18 WP SP C AP 18 Deg CNC 58/107 Alum

266/-

2.18/1.625

154/134

224/175

278/241

328/261

369/270

395/274

Brodix -18 SP C 269 18 Deg Alum

N/A

2.18/1.625

N/A

160/119

234/172

294/213

345/232

361/241

374/250

381/253

Brodix 18 Deg Busch Ported ET Performance Alum

257/-

2.15/1.60
4.03

52.5

74/49

159/114

231/177

288/219

323/238

340/246

Brodix 18 Deg Ported ET Performance Alum

260/-

2.14/1.60
4.155

52.5

71/54

143/106

220/159

283/213

326/239

349/251

356/257

362/264

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix 18 Deg CNC Rons Porting Service 262 Alum

262/-

2.18/1.625

156/129

225/188

281/232

331/243

350/248

360/250

362/252

Brodix 18 Deg CNC Rons Porting Service 278 Alum

278/-

2.18/1.625

150/125

220/180

281/224

331/240

362/248

380/251

385/254

Brodix 18 Deg CNC AP Alum

266/-

2.18/1.625

154/113

224/162

278/224

328/241

369/248

395/254

Brodix 18 Deg Ported Meaux Racing SF600 Alum

256/99

2.18/1.625
4.125
No Pipe

48.5

139/124

218/192

281/228

321/246

343/252

351/258

358/262

362/265

Brodix Track 1 Alum CHP

N/A

2.08/1.60

N/A

60/48

115/106

166/147

209/178

246/191

267/200

Brodix Track 1 Alum

215/-

2.08/1.60

128/111

183/149

229/179

268/193

269/207

Brodix Track 1 227 CNC Out of Box Weingartner Racing

227/-

2.08/1.60
4.125
No Pipe

N/A

70/58

146/114

214/163

268/205

298/221

312/227

318/235

Brodix Track 1 23 Deg Ported Alum

215/-

2.08/1.60

147/110

213/142

258/180

288/213

290/225

294/231

Brodix Track 1 23 Deg CNC M2 Race Systems Alum

215/-

2.08/1.60
4.03

151/116

219/150

263/185

291/208

294/219

296/227

Brodix Track 1 23 Deg CNC M2 Race Systems Alum

227/-

2.08/1.60
4.125

145/116

207/150

260/185

297/208

305/219

309/227

Brodix Track 1 23 Deg Alum

221/-

2.08/1.60

124/103

179/138

228/164

264/178

276/186

279/190

Brodix Track 1 23 Deg Ported BHPerformace Alum

N/A

-
-
No Pipe

N/A

68/60

134/115

198/162

257/192

301/206

318/218

330/227

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix Track 1X 23 Deg 40/60 Alum

222/-

2.10/1.60

152/113

213/152

262/173

285/185

287/192

292/195

Brodix Track 1X 23 Deg CNC 40/60 Rons Porting Service Alum

236/-

2.125/1.60

155/119

224/163

279/194

308/210

326/226

331/235

333/242

Brodix Track 1 40/60 Valve Spacing 23 Deg Alum

N/A

2.125/1.60

N/A

138/106

199/145

253/182

294/209

318/224

325/233

Brodix STS Track 1 23 Deg Alum

215/-

2.08/1.60

150/116

213/150

258/185

285/208

303/219

305/227

Brodix KC Track 1 23 Deg Alum

227/-

2.08/1.60

154/116

223/150

270/185

303/208

312/219

316/227

Brodix STS Track 1 23 Deg CNC I-50 E-45 40/60 Alum

233/-

2.125/1.60

139/106

200/145

254/181

296/209

319/224

326/233

Brodix STS Track 1 23 Deg CNC I-50 E-45 40/60 Alum

245/-

2.15/1.60

136/106

197/145

255/181

300/209

328/224

341/233

342/235

Brodix Trac 1 245 Ported Weingartner Racing Alum

265/-

2.15/1.60
4.155
No Pipe

71/52

142/98

198/136

245/179

288/216

321/231

342/241

346/247

349/252

355/254

Brodix JJ 180 23 Deg Alum

180/-

2.02/1.60

138/97

194/129

234/155

243/171

245/179

Brodix JJ 200 23 Deg Alum

200/-

2.05/1.60

125/97

182/129

227/155

260/171

266/179

Brodix JJ 210 CNC 23 Deg Alum

210/-

2.08/1.60

148/110

217/166

260/200

278/214

284/219

287/224

Brodix IK 180 23 Deg Alum

180/-

2.02/1.60

64/70

138/112

188/149

234/167

243/175

245/178

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix IK 180 23 Deg PHPerformance Alum

180/-

2.02/1.60

143/112

195/149

227/167

242/175

250/178

251/-

Brodix IK 180 23 Deg Ported PHPerformance Alum

198/-

2.02/1.60
-
No Pipe

71/59

149/128

210/168

262/189

288/198

292/203

290/204

Brodix IK 180 23 Deg Ported Weingartner Racing Alum

195/-

2.08/1.60
4.03
No Pipe

70/52

145/107

202/161

241/185

270/205

285/208

292/211

294/212

295/214

297/215

Brodix IK 200 23 Deg Alum

200/-

2.02/1.60

64/70

123/100

181/145

230/164

253/171

261/176

262/177

Brodix IK 200 23 Deg Out of Box Weingartner Racing Alum

200/-

2.02/1.60
4.155
No Pipe

N/A

62/46

125/94

171/134

223/157

235/166

260/172

262/173

Brodix IK 215 23 Deg Alum

215/-

2.08/1.60

64/70

134/93

189/138

239/164

263/177

276/181

276/185

Brodix BP IK 210 23 Deg Ported Alum

210/-

2.08/1.60

148/110

217/166

260/200

278/214

284/219

287/224

Brodix RR 180 23 Deg Alum

180/-

2.02/1.60

64/67

138/97

194/129

234/155

243/171

245/179

Brodix RR 180 23 Deg CNC CC Alum

180/-

2.02/1.60

64/67

142/113

199/153

238/171

241/179

241/184

Brodix RR 200 23 Deg Alum

200/-

2.055/1.60

64/67

125/97

182/129

227/155

260/171

266/179

Brodix RR 200 23 Deg CNC CC Alum

200/-

2.055/1.60

64/67

141/113

221/153

242/171

265/179

272/183

Brodix CV SP 265 Alum

265/-

2.20/1.60

159/109

232/145

293/188

347/221

379/237

395/244

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix CV SP 330 Alum

330/-

2.25/1.60

165/116

243/158

305/193

350/234

376/245

392/254

Brodix BP AK 13 Deg 270 95/150 Alum

270/-

2.18/1.60

154/110

236/161

298/213

333/238

361/248

376/258

Brodix BP AK 13 Deg 275 95/150 Alum

275/-

2.18/1.60

157/110

237/161

305/213

348/238

374/248

387/258

388/261

Brodix BP AK 13 Deg 285 95/150 Alum

285/-

2.18/1.60

157/110

239/161

298/213

339/238

369/248

382/258

Brodix WP LM 12 Deg 85/134 Alum

300/-

2.18/1.625

155/111

236/155

305/215

352/243

375/254

384/263

387/270

Brodix FF 13 Deg Ported Jones Engineering 88/184 I-45 E-45 Alum

290/-

2.20/1.60

159/114

238/155

304/194

356/237

377/253

386/260

389/265

Brodix FF 10 Deg Ported Jones Engineering 110/184 Alum

300/-

2.23/1.60

145/104

228/161

304/209

365/238

397/252

401/258

404/264

Brodix BD 1000 12 Deg 275 Weld Tech Alum

275/-

2.15/1.60

166/112

236/156

293/188

333/237

344/249

346/255

Brodix BD 1000 12 Deg 286 Weld Tech Alum

286/-

2.18/1.60

154/112

228/156

289/188

334/237

357/249

360/255

Brodix BD 1010 12 / 13.5 Deg CNC 58/125 Alum

299/-

2.20/1.60

152/117

229/162

292/220

343/245

375/255

388/260

Brodix BD 1010 12 Deg CNC Jones Engineering 95/150 Alum

282/-

2.18/1.60

153/110

231/162

295/221

342/243

370/252

392/258

399/261

Brodix BD 2000 12 / 13.5 Deg CNC 85/125 Alum

285/-

2.20/1.58

157/109

238/152

302/205

353/232

381/241

399/250

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix BD 2000 CNC Out of Box - Darin Morgan SF600 85/125 Alum

N/A

2.20/1.60
-
No Pipe

N/A

168/104

237/141

301/194

344/223

377/237

400/241

397/242

381/244

380/245

Brodix BD 2000 Ported TEA 85/125 Alum

285/-

N/A

73/59

159/115

230/187

290/254

342/277

371/289

391/295

399/301

Brodix BD 2300 13.5 Deg CNC 95/150 Alum

311/-

2.23/1.60

150/113

223/164

275/219

331/246

382/256

401/260

417/267

Brodix BD 2300 13.5 Deg CNC Jones Engineering 95/150 Alum

312/-

2.20/1.60

137/113

226/164

304/219

363/246

394/256

410/262

421/267

Brodix BD 4510 12 Deg 4.5 BS CNC Jones Engineering 95/150 I-45 E-45 Alum

292/-

2.18/1.60

156/107

243/155

311/202

383/234

385/247

399/253

406/255

Brodix WP BD 4510 12 Deg 4.5 BS CNC 88/184 I-45 E-45 Alum

292/-

2.20/1.60

159/114

243/155

307/196

356/229

378/251

390/258

402/263

Brodix WP FF 13 Deg 4.5 BS CNC 88/184 Alum

290/-

2.20/1.60

159/114

238/155

304/194

356/237

377/253

386/260

389/265

Brodix DR 1213 12.5 / 13.5 Deg CNC Jones Engineering Alum

315/-

2.23/1.60

141/105

221/159

295/210

351/237

396/252

421/262

435/268

Brodix 1213 12.5 / 13.5 Deg CNC RFD Alum

318/-

2.25/1.60

N/A

180/155

258/202

314/246

360/276

410/283

421/286

433/288

446/290

Brodix GB 2000 Ported BES Alum

N/A

2.23/1.59

N/A

140/99

230/138

306/178

361/212

404/256

430/274

445/265

440/291

443/296

Brodix GB 2000 WP 286 13.5 Deg CNC 85/125 Alum

286/-

2.20/1.58

157/109

238/152

302/205

353/232

381/241

399/250

Brodix GB 2000 13.5 Deg Ported TEA 85/125 Alum

285/-

N/A

78/59

170/115

244/187

304/254

349/277

375/289

387/295

399/301

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix GB 2200 WP 282 13.5 Deg CNC 85/125 Alum

282/-

2.20/1.58

150/104

223/158

286/210

336/235

368/246

383/252

Brodix GB 2200 WP 282 + 30 13.5 Deg CNC 85/125 Alum

282/-

2.20/1.58

150/104

224/158

289/210

337/235

371/246

396/252

Brodix GB 2200 13.5 Deg 282 CNC Jones Engineering 85/125 Alum

282/-

2.20/1.58

150/104

223/158

286/210

336/235

368/246

383/252

Brodix GB 2200 13.5 Deg 291 CNC Jones Engineering 85/125 Alum

291/-

2.20/1.58

152/104

228/158

292/210

339/235

373/246

390/252

Brodix GB 2300 WP 309 13.5 Deg CNC 75/125 Alum

309/-

2.20/1.58

153/100

231/151

286/216

342/243

374/250

394/253

Brodix GB 2300 13.5 Deg CNC RFD 75/125 Alum

N/A

2.22/1.60

188/140

255/170

312/240

357/255

399/280

418/284

430/289

439/290

Brodix GB 2300 13.5 Deg CNC M2 Race Systems 75/125 Alum

317/-

2.20/1.58
4.155

74/63

167/135

225/186

280/224

327/240

364/244

388/245

401/245

Brodix GB 2300 13.5 Deg 309 CNC Jones Engineering 75/125 Alum

309/-

2.20/1.58

153/100

231/151

286/216

342/243

374/250

394/253

Brodix GB 2300 13.5 Deg 311 CNC Jones Engineering 75/125 Alum

311/-

2.20/1.58

155/121

234/177

296/232

344/245

380/252

395/256

Brodix GB 2300 13.5 Deg 311 CNC Jones Engineering 95/150 Alum

311/-

2.23/1.60

150/113

223/164

275/219

331/246

382/256

401/262

417/267

Brodix GB 2400 13.5 Deg 320 CNC Jones Engineering 95/150 Alum

320/-

2.23/1.60

152/110

227/148

279/200

342/234

390/248

404/254

419/264

Brodix GB 2400 WP 13.5 Deg CNC 75/150 Alum

325/-

2.20/1.58

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix GB 2500 13.5 Deg CNC MBE Dirt Alum

N/A

2.20/1.60
-
No Pipe

N/A

63/48

138/101

214/146

284/197

342/231

388/251

411/261

419/270

422/272

425/271

Brodix GB 2500 13.5 Deg CNC MBE I-55 E-55 SF600 Alum

319/-

2.23/1.60
4.155
No Pipe

N/A

133/98

223/146

300/188

357/220

401/248

430/260

445/270

446/273

Brodix GB 2500 12.5 / 13.5 Deg CNC RFD Alum

318/-

2.25/1.60

180/155

258/202

314/246

360/276

410/283

421/286

433/288

446/290

Brodix Canted Valve Ported Bullet Cylinder Heads Alum

N/A

2.20/1.60

N/A

80/92

161/163

228/206

283/219

332/223

366/235

389/240

401/255

411/260

Canfield CCM Alum

195/-

2.02/1.60

61/51

128/103

191/143

238/170

271/189

254/200

Canfield 23-500-65 SF600 Alum

195/-

2.055/1.60
4.03
1 3/4" Pipe

72/53

145/107

201/143

247/175

258/190

259/200

259/203

Canfield 23-550-65 Alum

215/-

2.08/1.60
4.125
Pipe

N/A

62/43

141/112

207/152

255/173

270/184

279/195

283/213

Canfield 23-550-65 Alan / Burtonsville Performance Out of Box SF600 Alum

215/-

2.08/1.60
4.25
No Pipe

N/A

-/50

-/992

-/152

-/149

-/157

-/161

-/164

-/172

Canfield 23-550-65 Minor Pocket Porting Alan / Burtonsville Performance SF600 Alum

215/-

2.08/1.60
4.25
No Pipe

N/A

-/53

-/104

-/162

-/196

-/199

-/197

-/194

Canfield 23-600-65 Alum

220/-

2.08/1.60
-
No Pipe

72/52

145/105

206/146

252/184

288/203

302/219

306/227

Canfield 220 Ported Smithberg Racing Alum

N/A

2.08/1.60
4.155

66/-

132/-

197/-

248/-

289/-

308/-

323/-

332/-

337/-

339/-

CGM Motorsports 200 23 Deg CNC SF1020 Alum

200/-

2.02/1.60

N/A

64/57

114/101

161/128

201/152

232/159

251/169

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

CGM Motorsports 210 23 Deg CNC SF1020 Alum

210/-

2.02/1.60

N/A

71/57

146/101

204/157

250/177

261/186

266/190

276/195

Competition Products Alum CHP

195/60

2.02/1.60

59/50

112/91

152/122

194/152

231/167

256/172

Dart Sportsman II 200 Ported Smithberg Racing Iron

210/-

2.08/1.60
4.155

N/A

72/-

138/-

195/-

239/-

266/-

278/-

287/-

294/-

Dart 165 23 Iron Eagle

165/-

1.94/1.50

126/108

185/128

221/136

232/138

Dart 165 Iron Eagle

165/65

1.94/1.50
4.03
No Pipe

210/138

Dart 180 23 Iron Eagle

180/-

2.02/1.60

139/117

194/154

233/179

260/195

269/205

Dart 180 Iron Eagle

180/75

2.02/1.60
4.03
No Pipe

65.9

139/114

190/145

218/164

222/172

218/174

Dart 180 Iron Eagle Meaux Racing Out of Box

180/75

2.02/1.60
4.00
No Pipe

N/A

127/102

181/137

212/161

218/175

219/180

Dart 180 Iron Eagle Tri-Mark

180/75

2.02/1.60

N/A

62/63

127/115

180/147

209/163

209/168

209/171

208/176

Dart 180 Iron Eagle Ported Tri-Mark Stealth

N/A

2.02/1.60

N/A

68/61

134/112

188/150

228/170

244/181

248/184

249/190

Dart 180 Iron Eagle Ported Modern Cylinder Head

N/A

2.02/1.60

N/A

68/62

144/108

201/158

238/193

252/201

260/203

249/190

Dart 200 23 Iron Eagle

200/-

2.02/1.60

139/117

191/154

235/179

266/195

274/205

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart 200 Iron Eagle

200/75

2.02/1.60
4.03
No Pipe

65.9

129/114

186/145

229/164

261/172

252/174

Dart 200 Iron Eagle Tri-Mark

200/75

2.02/1.60

N/A

68/63

134/115

186/147

226/163

231/168

231/171

230/176

Dart 200 Iron Eagle Ported Tri-Mark Stealth

N/A

2.02/1.60

N/A

70/61

135/112

194/150

232/170

245/181

253/184

261/190

Dart 215 23 Iron Eagle

215/-

2.05/1.60

132/117

189/154

232/179

263/195

283/205

Dart Iron Eagle CHP

N/A

2.05/1.60

N/A

65/59

129/112

182/139

226/166

258/178

255/187

Dart Iron Eagle 23 Deg CNC Rons Porting Service 220 Alum

220/-

2.05/1.60

152/111

203/149

250/182

288/215

308/229

317/246

Dart Iron Eagle 23 Deg CNC Rons Porting Service 228 Alum

228/-

2.08/1.60

143/111

203/149

251/182

284/215

313/229

326/242

Dart Iron Eagle 23 Deg CNC Rons Porting Service 238 Alum

238/-

2.10/1.60

149/111

212/149

263/182

296/215

314/229

322/242

Dart Iron Eagle 23 Deg CNC Rons Porting Service 248 Alum

248/-

2.10/1.60

146/111

208/149

256/182

294/215

324/229

338/242

Dart 215 Iron Eagle

215/-

2.055/1.60
4.03
No pipe

65.9

127/114

178/145

216/164

249/172

268/174

271/-

Dart 230 Iron Eagle

230/-

2.08/1.60
4.155
No Pipe

65.9

129/115

184/158

231/185

271/199

296/205

308/207

308/-

Dart 230 Iron Eagle Ported Kelford Cams

N/A

2.08/1.60

N/A

73/59

132/127

186/171

239/204

275/224

312/233

319/239

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart 230 Iron Eagle Out of Box Steve SF600

230/-

2.08/1.60

N/A

64/46

132/95

185/135

227/159

243/168

Dart 230 Iron Eagle Ported Steve SF600

N/A

2.08/1.60

N/A

69/50

133/102

195/145

247/177

280/192

Dart 227 Iron Eagle Pro

227/-

2.08/1.60
-
No Pipe

131/96

195/135

248/169

283/193

297/208

304/217

Dart 200 Iron Eagle Platinum SF600

200/-

2.02/1.60
4.03
No Pipe

N/A

130/109

194/158

242/198

274/208

283/214

-/219

Dart 200 Iron Eagle Platinum CNC M2 Race Systems

223/-

2.055/1.60
4.03

N/A

70/40

151/96

198/135

248/175

283/206

301/225

304/233

Dart 200 Iron Eagle Platinum Ported Bullet Cylinder Heads

217/90

2.05/1.60

74/63

144/111

203/161

247/188

282/209

291/218

301/226

Dart 215 Iron Eagle Platinum SF600

215/75

2.05/1.60
4.03
No Pipe

N/A

136/109

193/158

239/198

273/208

289/214

293/219

Dart 215 Iron Eagle Platinum CHP

215/-

2.055/1.60

63/56

132/106

180/133

220/162

251/178

272/182

Dart 215 Iron Eagle Platinum Weingartner Racing Back Cut

N/A

2.055/1.60
4.155
No Pipe

N/A

63/53

141/103

182/139

215/168

241/168

250/197

248/204

235/208

234/208

Dart 215 Iron Eagle Platinum Competition Engines SF600

215/-

2.055/1.60
4.03
No Pipe

N/A

130/102

181/132

221/157

248/175

264/185

268/191

Dart 230 Iron Eagle Platinum SF600

230/75

2.08/1.60
4.15
No Pipe

N/A

138/109

201/158

247/198

280/208

297/214

306/219

Dart 230 Iron Eagle Platinum Out of Box Weingartner Racing

N/A

2.08/1.60
4.125
No Pipe

N/A

66/50

130/115

174/149

226/178

252/192

277/201

281/207

280/211

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart 215 Platinum Ported Mike Jones Iron

215/-

2.08/1.60

N/A

73/55

136/110

194/155

239/187

279/213

300/233

313/239

Dart Iron Eagle Platinum Meaux Racing Out of Box SF600

237.3/-

2.08/1.60
4.00
No Pipe

119/107

172/142

215/167

248/184

272/197

276/205

281/210

Dart SHP 180 Alum

180/75

2.02/1.60
-
No Pipe

64/72

139/114

190/145

218/164

222/172

218/174

Dart SHP 200 Alum

200/75

2.02/1.60
-
No Pipe

64/72

129/114

186/145

229/164

261/172

252/174

Dart PRO1 180 Alum

180/74

2.02/1.60
4.03
No Pipe

N/A

134/114

187/145

231/164

257/172

261/174

264/175

Dart PRO1 200 Alum

200/-

2.02/1.60
-
No Pipe

64/72

129/114

185/145

229/164

261/172

263/174

Dart PRO1 200 Bowl Cleanup Alum

200/-

2.05/1.60

N/A

209/155

237/193

269/216

281/222

Dart PRO1 200 Ported Bullet Cylinder Heads Alum

227/90

2.05/1.60

79/56

144/117

200/161

247/194

281/217

303/226

311/230

Dart PRO1 215 Alum

215/-

2.05/1.60
-
No pipe

64/72

127/114

178/145

216/164

249/172

268/174

271/-

Dart PRO1 215 Out of Box Weingartner Racing

N/A

2.055/1.60
4.125
No Pipe

N/A

65/52

138/106

198/138

243/165

273/178

269/186

268/189

265/191

Dart PRO1 215 Out of Box Jake Alum

N/A

2.055/1.60

N/A

63/52

134/110

184/135

225/163

255/181

265/193

255/199

Dart PRO1 215 Ported Mike Start Alum

215/-

2.08/1.60
4.030
No Pipe

N/A

80/68

148/127

200/180

244/207

281/220

303/225

308/232

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart PRO1 215 Ported Mike Stark Saenz 680 Alum

N/A

2.055/1.60
4.155

N/A

74/58

148/109

210/147

260/181

296/203

312/218

318/227

320/232

321/234

Dart PRO1 215 Meaux Racing Out of Box SF600 Alum

N/A

2.055/1.60
4.00
No Pipe

N/A

128/115

181/148

226/178

257/192

271/198

266/201

261/203

Dart PRO1 215 Ported Meaux Racing Level 2 SF600 Alum

N/A

2.125/1.60
4.00
No Pipe

N/A

147/111

208/167

251/199

285/214

300/220

308/224

309/227

Dart PRO1 215 Ported Meaux Racing SF600 Alum

215/-

2.125/1.60
4.125
No Pipe

N/A

147/111

215/161

260/204

293/228

304/240

311/244

319/243

Dart PRO1 215 Ported Meaux Racing Welded Pushrod Area SF600 Alum

215/-

2.125/1.60
4.125
No Pipe

N/A

147/111

215/161

262/204

293/228

314/240

319/244

323/243

Dart PRO1 227 23 CNC Full Port Alum

227/85

2.08/1.60

158/123

209/157

257/187

293/208

302/221

309/228

324/235

Dart PRO1 227 CNC Full Port Alum

227/85

2.08/1.625
4.155
No Pipe

158/117

209/149

257/182

293/211

302/220

309/226

314/232

Dart PRO1 Ported Alum

238/-

2.125/1.60
-
No Pipe

N/A

147/113

199/155

250/184

288/204

306/216

Dart PRO1 230 Alum

230/-

2.08/1.60
-
No Pipe

64/72

129/115

184/158

231/185

271/199

296/205

308/207

Dart PRO1 230 Dr Js Performance Alum

N/A

2.08/1.60
-
Pipe

N/A

61/51

115/103

168/135

216/166

254/187

258/202

262/212

Dart PRO1 230 CNC Dr Js Performance Alum

N/A

2.08/1.60
-
Pipe

N/A

71/67

141/120

207/162

257/195

289/219

300/232

309/244

Dart PRO1 230 Meaux Racing Out of Box SF600 Alum

N/A

2.055/1.60
4.00
No Pipe

N/A

123/117

179/148

223/175

257/193

279/193

267/205

266/208

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart PRO1 Ported 3V Performance Alum

N/A

2.08/-

N/A

80/-

145/-

210/-

267/-

305/-

327/-

338/-

344/-

346/-

Dart Platinum 23 Deg CNC Rons Porting Service 220 Alum

220/-

2.05/1.60

152/111

203/149

250/182

288/215

308/229

317/242

Dart Platinum 23 Deg CNC Rons Porting Service 238 Alum

238/-

2.10/1.60

143/111

203/149

251/182

284/215

313/229

326/242

Dart Platinum 23 Deg CNC Rons Porting Service 240 Alum

240/-

2.125/1.60

143/111

203/149

254/182

294/215

317/229

328/242

Dart 23 Deg 220-225 Super Mod Alum

225/88

2.08/1.625
4.155
No Pipe

N/A

138/122

201/168

253/192

279/207

284/211

282/213

Dart 23 Deg 220-232 Full Port Alum

232/98

2.08/1.60
4.155
No Pipe

N/A

144/121

208/169

258/216

296/238

311/244

316/250

Dart 23 Deg 220 Full Port No back Cut SF600 Alum

240/-

2.10/1.60
-
No Pipe

N/A

147/117

202/189

253/220

287/236

310/246

320/250

324/251

Dart 220 RR Full Port Alum

239/103

2.10/1.60
-
No Pipe

N/A

154/121

223/168

276/202

311/229

319/237

323/243

Dart 220 RR CFE Full Port Alum

248/106

2.10/1.60
-
No Pipe

N/A

131/115

199/154

254/183

289/220

304/233

304/240

Dart 220 Race Series Alum

248/-

2.10/1.60
-
No Pipe

147/117

202/189

253/220

287/236

310/246

320/250

324/251

Dart 18 Deg CNC Out of Box Weingartner Racing

N/A

2.14/1.60
4.125
No Pipe

N/A

80/52

150/125

220/161

273/203

311/226

349/240

338/248

Dart 18 Deg Super Mod SF600

246/105

2.15/1.60
-
No Pipe

N/A

165/131

210/165

270/195

321/235

353/249

357/253

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart 18 Deg Full Port No Back Cut SF600 Alum

252/105

2.15/1.60
4.155
No Pipe

N/A

132/101

194/144

252/198

305/217

347/227

365/241

358/241

Dart 18 Deg Full Port No Back Cut SF600 Alum

263/108

2.18/1.60
4.155
No Pipe

N/A

183/131

243/169

295/225

342/246

364/263

368/268

363/272

Dart 18 Deg Full Port SF600

275/110

2.18/1.60
-
No Pipe

N/A

165/131

210/173

272/230

326/249

360/263

378/270

Dart 18 Deg Alum

257/-

2.15/1.60
4.155
No Pipe

N/A

145/114

211/174

270/217

321/241

346/251

350/258

340/262

Dart 18 Deg Alum

270/-

2.18/1.60
4.155
No Pipe

N/A

162/114

232/174

293/217

332/241

359/251

366/258

366/262

Dart 18 Deg Alum

N/A

2.18/1.60
-
No Pipe

139/111

192/154

250/216

304/242

346/254

373/258

380/262

Dart 18 Deg Ported Chris Frank Alum

N/A

-
4.175
No Pipe

N/A

141/103

238/156

298/206

348/231

381/242

397/250

408/262

415/269

420/273

Dart 16 Deg Alum

268/-

2.15/1.60

158/111

219/168

279/217

324/252

356/257

363/261

368/263

Dart 16 Deg Full Port Intake Back Cut 45/39/32 SF600 Alum

263/108

2.15/1.60
-
No Pipe

N/A

145/119

219/173

280/213

325/240

358/257

379/264

383/268

Dart 16 Deg Full Port Lrg No Back Cut SF600 Alum

281/119

2.20/1.625
-
No Pipe

N/A

163/106

228/149

286/191

340/219

377/234

387/247

392/251

Dart 16 Deg Ported Jones Engineering 58/107 Alum

267/-

2.18/1.60

161/101

231/149

291/211

337/237

360/253

371/263

375/268

Dart 15 Deg Small Alum

276/111

2.15/1.60
-
No Pipe

392/-

-/263

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart 15 Deg Large Alum

281/113

2.20/1.60
-
No Pipe

Dart 15 Deg Alum

284/-

2.15/1.60

160/128

232/175

293/214

333/242

357/256

369/265

372/266

Dart 15 Deg Ported BES Alum

N/A

2.225/1.60

145/114

217/160

280/205

329/233

364/252

383/259

390/263

398/265

404/268

Dart High Port 15 Deg - Darin Morgan SF600 Alum

N/A

2.18/1.625
-
No Pipe

N/A

136/111

212/157

281/214

339/243

379/258

394/265

396/271

404/273

-/275

Dart 12.5 265 Deg Alum

265/-

2.15/1.60

145/109

214/158

279/203

306/234

344/256

347/265

Dart 12.5 296 Deg Alum

296/-

2.15/1.60

157/116

231/162

287/206

340/251

367/271

377/279

385/281

386/283

Dart 12.5 Deg Ported Jones Engineering 36/102 I-45 E-45 Alum

282/-

2.18/1.625

147/110

225/159

288/218

344/246

386/267

390/274

Dart Little Chief 11 Deg 275 I-50 E-55 SF1020 Alum

275/108

2.18/1.55
4.155
No Pipe

N/A

162/138

240/186

306/241

350/266

372/274

376/278

384/280

389/282

392/282

Dart Little Chief 11 Deg 315 I-55 E-55 SF1020 Alum

315/108

2.23/1.55
4.155
No Pipe

N/A

158/138

235/186

300/241

352/266

385/274

401/278

405/280

410/282

415/282

Dart Little Chief 11 Deg 315 I-55 E-55 SF1020 Alum

330/108

2.23/1.55
4.155
No Pipe

N/A

143/138

233/186

304/241

360/266

393/274

405/278

418/280

425/282

431/282

Dart Little Chief 11 Deg Ported MBE Alum

345/-

2.25/1.60
4.155
No Pipe

35-46

140/101

222/140

298/186

360/236

409/259

429/268

441/274

457/-

468/-

Dart Little Chief 11 Deg Ported MBE I-55 E-55 SF600 Alum

347/-

2.27/1.55
4.155
No Pipe

N/A

151/101

227/140

303/186

365/236

413/259

438/268

444/274

456/276

462/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart 9 Deg Alum

299/215

2.20/1.625
-
No Pipe

70/54

153/103

227/156

300/209

360/243

406/266

421/279

Dart 9 Deg Alum

N/A

2.21/1.625
4.40
No Pipe

225/162

298/215

348/245

375/260

388/267

394/275

Edelbrock E-Street 5073, 5089 SF1020 Alum

185/60

2.02/1.60

64/70

63/51

125/99

182/131

225/153

248/163

249/168

Edelbrock 6071, 6073 Alum OLD

170/60

2.02/1.60

72/61

134/105

188/140

224/160

233/172

233/179

Edelbrock 60719 Performer RPM Straight Plug Alum

170/60

2.02/1.60

73/61

140/108

200/144

238/163

244/175

244/183

Edelbrock 60739 Performer RPM Angled Plug Alum

170/60

2.02/1.60

73/61

140/108

200/144

238/163

244/175

244/183

Edelbrock 60859, 60879 Performer Centerbolt SF1020 Alum

165/60

2.02/1.60

64/54

122/96

177/124

217/147

229/166

232/175

Edelbrock 60899, 60909, 60999 Performer RPM Alum

170/60

2.02/1.60

67/58

130/108

183/144

226/169

229/175

232/182

Edelbrock Performer RPM 60899, 60999 SF1020 Alum

185/65

2.02/1.60

66/55

129/98

188/131

228/152

240/162

241/168

Edelbrock Performer RPM 608979 SCCA SF1020 Alum

185/65

1.94/1.55

61/51

127/95

185/118

217/131

229/137

237/140

Edelbrock Performer RPM '86 earlier 60759 SF1020 Alum

185/65

2.02/1.60

64/70

66/52

127/97

185/127

230/146

238/156

239/162

Edelbrock 60899 Performer RPM Alum CHP

185/63

2.02/1.60

60/48

125/96

181/134

223/161

244/176

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock 6089 NPS Alum

N/A

2.02/1.60
4.016
No Pipe

N/A

65/54

127/105

180/137

219/155

240/163

236/167

Edelbrock 60979 E-Tec 170 SF1020 Alum

170/70

1.94/1.55

64/54

130/104

186/140

220/169

232/183

238/190

Edelbrock 60989 E-Tec 200 SF1020 Alum

200/80

2.02/1.60

67/57

122/110

175/153

223/182

252/196

259/204

265/207

Edelbrock E-210 Out of Box Weingartner Racing Alum

210/-

2.08/1.60
4.155
No Pipe

N/A

64/41

132/88

179/124

220/147

246/163

259/172

264/175

263/177

259/178

259/-

Edelbrock/ Chapman 61049 Alum

236/100

2.135/1.625
-
No Pipe

71/54

159/108

224/182

273/222

305/238

314/250

323/260

Edelbrock/ Chapman Victor 18 Deg 61069 Alum

252/100

2.18/1.625

72/54

161/108

232/182

286/222

321/238

342/250

345/260

Edelbrock 23 Deg. CNC Rons Porting Service Alum

236/-

2.10/1.60

168/116

223/164

281/210

308/232

322/238

326/240

328/242

Edelbrock 18 Deg. CNC Rons Porting Service Alum

278/-

2.18/1.625

150/125

220/180

281/224

331/240

362/248

380/251

385/254

Edelbrock 18 Deg. Ported Speier Racing Heads I-50 E-50 Alum

N/A

2.18/1.60
4.155
2" Pipe

136/102

212/148

275/192

325/229

362/257

383/268

393/275

395/278

396/281

Edelbrock NX 18 Ported BES Alum

285/108

2.18/1.625

N/A

71/42

135/100

199/152

259/205

317/246

360/265

385/276

396/283

400/289

402/294

Edelbrock/ Chapman Victor 18 Deg 61089 Alum

256/100

2.18/1.625

72/54

161/108

233/182

286/222

321/238

344/250

348/260

Edelbrock/ Chapman Victor 18 Deg 61109 Alum

236/100

2.125/1.625

71/54

159/108

224/182

273/222

305/238

314/250

323/260

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock 61119 Victor 15 Deg. Ported Chapman Alum

283/100

2.18/1.625
-
No Pipe

63/48

137/113

215/177

281/217

327/240

363/254

381/260

Edelbrock 61129 Alum

252/100

2.18/1.625

72/54

161/108

232/182

286/222

321/238

342/250

345/260

Edelbrock 61139 Victor 15 Deg. Ported Chapman Alum

317/100

2.25/1.625
-
No Pipe

70/49

142/118

216/175

280/212

328/241

368/257

398/267

404/271

Edelbrock 15 Deg. CNC Rons Porting Service Alum

272/-

2.18/1.625

153/110

228/184

292/229

334/258

366/268

382/274

Edelbrock 15 Deg CNC RFD Alum

2.25/1.625

N/A

156/120

228/180

304/220

363/246

398/258

410/269

418/273

422/280

Edelbrock 61149 Alum

256/100

2.18/1.625

72/54

161/108

233/182

286/222

321/238

344/250

348/260

Edelbrock/ Chapman Victor 18 Deg 61159 Alum

246/100

2.15/1.625

72/54

161/108

232/182

286/222

321/238

340/250

342/260

Edelbrock 61169 Alum

266/100

2.18/1.625

71/54

151/108

226/182

271/222

323/238

350/250

355/260

Edelbrock 61179 Alum

270/105

2.18/1.625

71/51

151/114

226/180

271/213

323/240

350/248

355/255

Edelbrock 61189 Alum

246/100

2.18/1.625

72/54

161/108

232/182

286/222

321/238

340/250

342/260

Edelbrock 61199 Alum

266/100

2.18/1.625

71/54

151/108

226/182

271/222

323/238

350/250

355/260

Edelbrock/ Chapman Victor 23 Deg 61209 Alum

238/85

2.125/1.625
-
No Pipe

68/54

147/106

221/181

265/212

293/228

312/235

317/240

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock/ Chapman Victor 23 Deg 61229 Alum

243/85

2.125/1.625
-
No Pipe

67/54

147/106

221/181

269/212

299/228

310/235

315/240

Edelbrock/ Chapman Victor 23 Deg 61249 Alum

247/85

2.125/1.625
-
No Pipe

71/54

146/106

222/181

268/212

299/228

314/235

321/240

Edelbrock/ Chapman Victor 23 Deg 61209 Revised Smithberg Racing Alum

N/A

2.135/1.60
4.155
No Pipe

N/A

80/42

166/98

231/173

281/209

320/228

338/241

346/248

351/257

355/258

360/258

Edelbrock Victor Jr. 23 Deg. 77569, 77579, 77589, 77599, 77619, 77629, 77639, 77649 SF1020 Alum

215/85

2.08/1.60

64/70

67/64

119/112

177/153

226/188

265/207

281/217

285/220

Edelbrock Victor Jr. 23 Deg. 7761 Alum CHP

N/A

2.08/1.60

N/A

69/57

123/111

173/145

219/180

255/198

275/206

284/206

Edelbrock Victor Jr. 23 Deg. Ported Bullet Cylinder Heads Alum

225/90

2.08/1.60

72/55

144/107

201/156

255/185

287/208

297/221

305/226

Edelbrock 23 Deg. 77559 Ported Jones Engineering 40/60 I-45 E-45 Alum

237/-

2.125/1.60

151/118

223/161

273/200

304/218

324/230

332/237

EngineQuest 167 23 Deg Out of Box Weingartner Racing Iron

167/-

2.02/1.60
4.125
No Pipe

70/64

124/109

173/158

207/164

230/167

238/166

241/166

EngineQuest CC180BA 23 Deg Iron

180/-

2.02/1.60
-
No Pipe

65/55

130/107

178/133

213/157

235/174

242/183

244/188

EngineQuest CC200BA 23 Deg Iron

200/-

2.02/1.60
-
No Pipe

75/65

137/113

186/147

225/170

252/182

265/188

272/189

EngineQuest AC200BS 23 Deg Out of Box Shaver Alum

197/-

2.02/1.60

59/51

122/101

176/139

217/167

231/180

225/185

228/187

EngineQuest 200 Weingartner Racing Back Cut Alum

N/a

2.02/1.60
4.155
No Pipe

N/A

64/48

131/99

186/132

231/157

252/176

259/186

259/191

259/194

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

EngineQuest CC220BA 23 Deg Iron

220/-

2.02/1.60
-
No Pipe

71/64

141/115

196/145

238/170

265/189

280/202

284/208

EngineQuest 220 23 Deg Out of Box Weingartner Racing Iron

220/-

2.02/1.60
4.125
No Pipe

75/49

145/103

204/136

252/155

278/171

292/183

296/191

EngineQuest 220 23 Deg Ported Dr Js Performance Out of Box Trmnatr Iron

N/A

2.08/1.60
-
1 3/4" Pipe

N/A

71/63

139/125

200/159

242/190

277/214

297/230

307/241

EngineQuest CC235BA 23 Deg Iron

235/-

2.08/1.60
-
No Pipe

72/56

141/107

198/138

247/168

279/187

296/195

304/200

EngineQuest 235 23 Deg Out of Box Weingartner Racing Iron

235/-

2.08/1.60
4.125
No Pipe

70/55

139/115

199/171

246/190

282/199

308/202

313/204

EngineQuest 235 23 Deg Out of Box Weingartner Racing Brez I-30 E-30 back Cut Iron

235/-

2.08/1.60
4.155
No Pipe

74/64

146/116

245/150

276/173

295/190

305/198

310/204

EngineQuest 23 Deg Dr Js Performance Iron

232/-

2.08/1.60

N/A

71/63

139/125

200/158

242/190

277/214

297/230

307/241

EngineQuest 215 CNC Air Wolf Dr Js Performance Iron

215/-

2.08/1.60
4.06

74/-

143/-

203/-

252/-

291/-

312/-

322/-

328/-

331/-

335/-

EngineQuest CH350A Vortec Iron

176/-

1.84/1.50
-
No Pipe

EngineQuest CH350C Vortec Iron

170/-

2.02/1.60
-
No Pipe

54/49

104/88

194/119

224/140

224/148

226/152

228/152

EngineQuest CH350C Vortec Blended VJ Keith Morganstein Iron

N/A

2.02/1.60

N/A

79/56

153/94

200/149

238/177

255/186

266/193

EngineQuest CH350I IMCA Iron

167/-

1.94/1.50

N/A

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Flo-Tek 180 23 Deg SF1020 Alum

180/62

2.02/1.60

117/98

163/133

200/159

232/173

238/181

239/182

Flo-Tek 200 23 Deg SF1020 Alum

200/78

2.02/1.60

75/56

132/116

185/150

233/169

270/171

281/172

288/174

Flo-Tek 210 23 Deg SF1020 Alum

210/78

2.05/1.60

151/114

211/149

250/183

275/203

283/214

284/219

289/200

Flo-Tek 220 23 Deg SF1020 Alum

220/84

2.08/1.60

143/124

208/162

262/193

301/216

315/230

320/238

320/246

Flo-Tek 23 Deg Ported Speier Racing Heads Alum

220/-

2.08/1.60
4.155

N/A

201/153

256/195

301/221

320/234

329/243

331/250

HRD Ported All Pro 23 Deg Alum

N/A

2.125/1.61

N/A

148/120

221/165

275/235

312/257

329/266

344/270

HRD Ported All Pro 227 Alum

N/A

2.15/1.625

N/A

148/115

217/191

272/242

317/260

342/269

352/273

358/277

HRD Ported AFR 215

245/-

2.125/1.61

N/A

142/111

215/162

271/222

310/244

328/251

340/254

HRD Ported Brodix Track I Alum

N/A

2.08/1.60

N/A

138/111

198/160

254/209

297/218

312/225

320/220

HRD Ported GM 580/855 18 Deg

255/-

2.15/1.625

N/A

154/111

221/159

276/235

321/251

355/262

364/270

HRD Ported GM 855 18 Deg

N/A

2.18/1.60

N/A

149/114

225/178

277/231

318/260

355/267

365/270

371/-

HRD Ported GM 12480011 SB2.2

N/A

157/111

240/160

297/227

339/254

364/264

374/272

380/276

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

HRD Ported GM 12480011 SB2.2

290/-

2.17/1.61

N/A

140/114

249/162

314/221

355/249

383/262

393/270

406/288

HRD Ported GM SB2.2 Hi/Lo

270/-

2.17/1.61

142/114

227/165

298/217

350/248

379/267

392/278

398/281

HRD Ported GM 517 Splayed Val

N/A

2.20/1.625

N/A

142/114

225/178

294/226

375/257

375/273

395/283

406/287

411/290

HRD Ported GM 517 Splayed Val

N/A

2.225/1.625

N/A

135/111

220/146

294/192

353/235

391/265

409/281

420/288

433/292

HRD Ported GM 615x 15 Deg

268/-

2.18/1.61

N/A

151/114

218/168

270/232

317/257

352/271

389/280

401/283

410/285

HRD Ported GM 615x 15 Deg

285/-

2.20/1.61

N/A

134/121

211/178

265/229

317/259

357/272

390/278

410/282

422/288

HRD Ported GM 615x 15 Deg Rolled to 13 Deg

260/-

2.17/1.60

125/109

199/175

257/228

312/262

355/275

384/284

408/290

419/296

Holley 300-570 Alum

172/-

2.02/1.60
-
Pipe

72/53

134/102

188/143

223/170

232/177

236/180

Holley SysteMax Alum

186/-

2.02/1.60
-
Pipe

66/53

130/92

184/122

222/148

242/172

252/187

Holley Avenger Alum

184/68

2.02/1.60

223/173

Patriot 23 Deg 185 Out of Box CHW SF600 Alum

185/-

2.02/1.60
4.00
No Pipe

N/A

56/53

101/83

147/114

190/137

227/155

245/171

248/177

Patriot 23 Deg 190 CNC SF1020 Alum

190/62

2.02/1.60
4.06

N/A

70/52

132/94

180/127

222/162

244/183

260/195

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Patriot 23 Deg 190 CNC Alum

190/62

2.02/1.60

64/50

130/96

181/136

219/165

248/181

260/190

Patriot 23 Deg 195 CNC Alum

195/-

2.02/1.60

70/68

140/106

193/144

230/178

259/190

270/201

273/211

Patriot 23 Deg 195 Dr Js Performance Alum

195/-

2.05/1.60
-
Pipe

N/A

70/52

132/94

180/127

220/162

244/178

260/188

260/192

Patriot 23 Deg 215 CNC Alum

215/-

2.02/1.60

71/68

141/106

196/144

234/178

260/190

278/201

282/211

Patriot 23 Deg 215 CNC Alum

215/-

2.08/1.60

72/68

138/106

191/144

230/178

261/190

283/201

290/211

Patriot 23 Deg 225 Out of Box CHW SF600 Alum

225/-

2.08/1.60
4.00
No Pipe

N/A

64/48

127/93

181/135

229/156

266/167

278/170

283/174

Patriot Freedom 188 CNC CCM Alum

188/-

2.02/1.60
-
No Pipe

N/A

62/50

123/81

169/125

209/154

229/175

263/186

Patriot Freedom 190 CNC HPS Alum

190/62

2.02/1.60

68/50

132/97

187/137

225/165

250/181

259/190

Patriot Freedom 225 Alum

225/70

2.08/1.60

82/70

158/119

222/164

259/194

287/215

295/222

301/224

Patriot Freedom Meaux Racing Out of Box SF600 Alum

225/-

2.08/1.60
4.03
No Pipe

N/A

127/102

187/149

234/174

262/179

275/181

277/182

276/181

Patriot Freedom Hi-Tech Motor Sports Out of Box Alum

225/-

2.08/1.60
4.00
1 3/4" Pipe

N/A

72/55

142/99

208/142

245/175

267/202

278/222

286/231

PBM 217 CNC Iron

217/-

2.05/1.60

146/114

206/161

255/191

288/209

304/216

309/220

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

PBM 228 CNC Iron

228/-

2.08/1.60

143/111

209/160

258/192

294/212

314/220

321/225

PBM 232 CNC Iron

232/-

2.10/1.60

151/114

211/164

261/196

298/216

316/230

325/237

PBM 15 Deg CNC Alum

N/A

2.18/1.625

153/110

228/184

300/229

340/258

371/268

382/274

Pro Comp 23 Deg Alum

N/A

2.02/1.60

71/57

146/101

204/157

250/177

261/186

267/190

276/195

Pro Comp 190 OLD Out of Box Weingartner Racing Alum

190/-

2.02/1.60
4.125
No Pipe

N/A

71/55

130/110

174/143

217/157

247/159

250/157

250/156

Pro Comp 190 Out of Box Weingartner Racing Alum

190/-

2.02/1.60
4.125
No Pipe

N/A

71/55

127/104

178/132

222/165

253/180

279/181

287/182

Pro Comp 190 23 Deg Dr Js Performance Alum

190/-

2.02/1.60

N/A

60/52

107/81

152/109

200/136

238/156

257/174

260/177

Pro Comp 190 23 Deg CNC Dr Js Performance Alum

N/A

2.08/1.60
-
1 3/4" Pipe

N/A

73/65

139/115

201/138

245/167

272/198

289/217

297/231

Pro Comp 220 23 Deg CNC Dr Js Performance Alum

220/-

2.08/1.60

75/69

144/110

201/145

244/175

285/200

308/215

314/228

318/237

325/241

Pro Comp 23 Deg 210 CNC Alum

210/-

2.02/1.60
4.125

N/A

77/56

157/112

212/156

240/183

264/199

278/208

287/213

Pro Comp 23 Deg 210 PC3003 SF600 Alum

210/-

2.02/1.60
-
Pipe

N/A

63/52

117/98

163/132

204/162

230/180

248/189

252/192

Pro Comp 210 CNC Out of Box Weingartner Racing Alum

210/-

2.02/1.60
4.125
No Pipe

N/A

77/56

157/112

212/156

240/183

264/199

278/208

287/213

290/216

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro Comp 210 CNC Out of Box Weingartner Racing Brez Alum

210/-

2.02/1.60
4.155
No Pipe

N/A

62/49

113/105

160/136

207/172

250/187

277/189

284/189

Pro Comp 215 CNC Alum

215/-

2.05/1.60

N/A

69/56

145/103

201/149

238/176

266/191

280/200

291/205

292/208

Pro Comp Vortec

N/A

2.02/1.60

N/A

64/57

114/101

161/128

201/152

232/159

251/169

Pro Comp Ported Speier Racing Heads v2.5 I-45 E-45 Alum

N/A

2.05/1.60
4.06
Pipe

N/A

149/107

194/142

245/175

284/196

300/209

305/219

308/225

312/230

313/233

Pro-Filer 185 Alum

185/-

2.02/1.60

N/A

135/110

201/145

245/180

265/206

270/213

272/216

275/218

Pro-Filer 195 Alum

195/-

2.02/1.60

N/A

145/101

205/144

255/175

278/194

281/205

282/213

283/219

Pro-Filer 195 Darin Morgan SF600 Alum

195/-

2.02/-

N/A

147/-

214/-

259/-

275/-

276/-

277/-

Pro-Filer 195 Out of Box Speier Racing Heads Alum

195/-

2.02/-

N/A

156/-

217/-

263/-

277/-

282/-

285/-

Pro-Filer 195 Ported Speier Racing Heads Alum

204.5/-

2.055/-

N/A

164/-

218/-

272/-

304/-

305/-

307/-

308/-

Pro-Filer 195 Ported Speier Racing Heads I-45 E-45 Alum

227/-

2.10/1.60
4.155

145/-

212/-

268/-

302/-

322/-

331/-

333/-

334/-

336/-

Pro-Filer 195 Ported Speier Racing Heads I-45 E-45 Alum

227/-

2.10/1.60
4.155
1 7/8" Pipe

N/A

153/112

222/154

266/185

299/207

319/219

329/227

332/236

334/239

336/241

Pro-Filer 195 Ported Weingartner Racing Alum

213/-

2.08/1.60
4.03
No Pipe

67/50

146/102

208/138

251/169

288/192

301/210

302/221

305/229

311/234

313/236

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro-Filer 176-21 C 23 Deg Alum

210/-

2.055/1.60

129/109

186/145

227/172

271/187

284/219

294/232

Pro-Filer 23 Deg Darin Morgan Ports Out of Box Int 30 deg Back cut 18 deg tulip exhaust w back cut SF600 Alum

210/-

2.055/1.60
-
No Pipe

62.15-62.2

143/96

204/150

250/178

284/199

300/211

300/218

302/221

302/223

300/223

Pro-Filer 23 Deg Gasket Matched Trmnatr Alum

N/A

2.055/1.60
4.07

N/A

143/96

204/150

250/178

284/199

300/211

300/218

302/221

302/223

300/223

Pro-Filer 23 Deg VJ Gasket Matched Ports Dr Js Perfomance Alum

210/-

2.08/1.60
4.155
1 3/4" Pipe

N/A

74/59

135/112

197/162

243/189

282/205

290/212

295/221

299/228

Pro-Filer 176 210 Alum

210/-

2.08/1.60

N/A

145/110

207/145

258/180

283/206

285/213

291/216

297/218

Pro-Filer 210 Out of Box Daryl Alum

210/-

2.055/1.60

N/A

127/102

183/138

232/158

261/171

277/177

281/182

295/-

Pro-Filer 210 Out of Box Back Cut Valve Speier Racing Heads Alum

210/-

2.055/-
4.125

N/A

159/-

211/-

261/-

285/-

290/-

295/-

Pro-Filer 210 Pushing the Throat Back Cut Valve Speier Racing Heads Alum

210/-

2.055/-
4.125

N/A

155/-

212/-

260/-

290/-

291/-

297/-

300/-

Pro-Filer 210 VJ Clean Up Speier Racing Heads Alum

210/-

2.125/-

N/A

148/-

217/-

261/-

300/-

302/-

303/-

300/-

Pro-Filer 210 Ported Weingartner Racing I-50 E-45 Alum

238/-

2.10/1.60
4.155
No Pipe

65/51

141/107

205/148

256/179

293/202

316/217

319/228

323/236

330/242

337/245

Pro-Filer Ported Speier Racing Heads Alum

218/-

2.10/-

N/A

153/-

217/-

266/-

300/-

311/-

315/-

319/-

Pro-Filer Ported Speier Racing Heads v2.70 Alum

N/A

2.14/1.58
4.155
No Pipe

142/113

210/145

260/181

299/208

325/222

336/233

342/240

344/246

346/249

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro-Filer Ported Speier Racing Heads v2.72 Alum

N/A

2.10/1.60
4.155
No Pipe

N/A

139/100

196/129

243/161

283/188

317/206

331/219

337/228

341/233

344/239

Pro-Filer Ported Speier Racing Heads v3.00 I-50 E-50 Alum

265/-

2.14/1.58
-
1 7/8 Pipe

N/A

138/105

206/145

254/180

294/207

326/222

344/232

351/240

357/246

363/249

Pro-Filer 220 CNC Air Wolf Alum

220/-

2.08/1.60
-
1 7/8" Pipe

78/65

155/116

228/162

276/196

301/219

315/233

320/244

322/252

324/257

-/260

Pro-Filer Darin Morgan 220 CNC Air Wolf SF600 Alum

220/-

2.08/-

N/A

155/-

225/-

272/-

304/-

317/-

321/-

326/-

330/-

331/-

Pro-Filer 235 CNC Air Wolf Alum

235/-

2.10/1.60
-
1 7/8" Pipe

N/A

75/69

147/110

203/145

249/180

288/207

310/220

325/229

335/238

338/247

339/250

Pro-Filer Darin Morgan 245 CNC Air Wolf SF600 Alum

245/-

2.125/-

N/A

161/-

231/-

281/-

311/-

329/-

339/-

345/-

349/-

350/-

Pro-Filer Meaux Racing 220 CNC Air Wolf SF600 Alum

220/-

2.10/1.60
4.125
No Pipe

N/A

142/102

209/146

257/174

290/196

299/211

303/220

307/224

309/227

Pro-Filer 13 Deg Ported Weingartner Racing I-50 E-50 Alum

N/A

2.18/1.60
4.155
No Pipe

74/55

144/105

228/145

292/174

341/202

377/223

386/236

397/246

400/250

404/256

Pro-Filer 176X 13 Alum

235/-

2.125/1.60

153/110

225/145

280/180

313/206

325/213

335/216

336/218

Pro-Filer 13 Clean up Speier Racing Heads Alum

N/A

2.18/1.58

N/A

148/115

221/166

279/202

328/229

351/244

365/252

370/257

373/260

375/262

Pro-Filer Ported Speier Racing Heads Alum

N/A

2.20/-

N/A

152/-

229/-

290/-

335/-

369/-

388/-

395/-

397/-

399/-

Pro-Filer 12 Air Strike Alum

370/-

2.25/1.60

146/85

217/156

300/205

364/245

409/260

427/271

441/280

452/282

462/286

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro-Filer 12 Air Strike Porter BES Alum

N/A

2.275/1.60

N/A

145/107

205/158

316/208

374/245

405/267

424/275

437/283

450/288

460/291

ProMaxx Alum

183/-

2.02/1.60
-
No Pipe

138/105

196/135

244/152

259/157

263/159

265/160

ProMaxx 190 Alum

225/72

2.02/1.60

66/55

132/111

195/155

232/179

252/193

261/199

ProMaxx 200 Alum

N/A

2.02/1.60

N/A

71/54

146/111

206/155

242/179

265/193

277/199

281/201

ProMaxx 225 Alum

225/72

2.08/1.60

76/54

147/111

210/155

253/179

274/193

287/199

293/201

ProMaxx Shocker 225 Alum

225/72

2.08/1.60

150/114

214/147

270/176

296/205

316/225

319/238

326/238

Pro 14 Deg as Cast

235/-

2.125/1.625

N/A

72/64

147/105

212/156

269/200

293/226

312/238

325/245

Pro 14 Deg CNC Ported

305/-

2.25/1.625

N/A

77/67

162/119

234/189

300/229

353/252

384/266

401/274

411/281

Pro 23 Deg as Cast Alum

235/-

2.055/1.60
4.03
No Pipe

64/72

129/109

186/145

227/172

271/187

284/219

295/232

Pro 23 Deg as Cast Alum

N/A

2.055/1.60
4.03
No Pipe

64/72

66/56

134/110

191/147

232/175

260/192

278/201

291/207

296/210

Pro 23 Deg as Cast Alum

235/-

2.08/1.60
4.03
No Pipe

64/72

73/60

138/114

196/152

243/178

274/192

292/194

312/197

Pro Topline 220 Out of Box

220/-

2.02/1.60
-
No Pipe

N/A

126/89

184/123

233/147

265/162

287/171

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro Topline Iron

254/-

2.15/-

N/A

154/117

223/165

282/216

327/240

351/250

364/260

Pro Topline Ported Rons Alum

N/A

2.10/1.60
4.125

N/A

131/115

184/152

229/180

263/198

291/209

303/212

305/214

Pro Topline 14 Ported Weingartner Racing Alum

N/A

-
-
No Pipe

N/A

76/51

158/101

229/140

294/177

383/211

380/245

395/258

401/268

407/272

415/277

Racer Pro 23 Deg Ported Bullet Cylinder Heads

N/A

2.08/1.60

71/63

140/109

198/155

248/187

278/210

293/221

305/229

Racer Pro 18 Deg Ported Bullet Cylinder Heads

247/100

2.15/1.60

76/60

158/112

224/155

273/194

312/233

331/241

340/250

344/257

RDP-SBX Australian Pro Stock Darin Morgan SF600 Alum

N/A

2.27/1.60
-
No Pipe

N/A

146/92

231/151

314/188

384/238

426/271

450/286

465/296

473/297

482/299

RFD Monster 18 Deg Alum

N/A

2.18/1.625

N/A

239/189

304/233

345/266

380/266

394/276

395/281

RHS RR 21 Deg Weingartner Racing Out of Box

N/A

2.08/1.60
4.155
No Pipe

N/A

67/55

151/113

212/154

255/187

271/202

282/206

287/210

296/213

RHS 21 Deg Ported Weingartner Racing

N/A

2.125/1.60
-
No Pipe

N/A

70/55

141/96

208/133

260/164

298/192

333/212

343/224

346/232

350/236

360/241

RHS 21 Deg Ported Rons Porting Service

250/-

2.15/1.60

152/125

220/170

275/207

318/220

340/234

346/242

352/252

RHS Lightning Iron CHP

200/75

2.06/1.60

65/45

122/91

170/128

210/152

233/167

263/176

RHS Lightning 23 Deg Ported Bullet Cylinder Heads Iron

218/91

2.05/1.60

72/57

140/103

183/144

228/179

265/202

288/215

294/220

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

RHS Pro Action 23 Deg 180 SF600

180/-

2.02/1.60
4.20

64/72

74/58

151/101

207/157

243/177

258/186

263/190

270/195

RHS Pro Action 23 Deg 200 SF600

200/-

2.02/1.60
4.20

50/64/72

69/57

134/101

192/157

236/177

261/186

268/190

278/195

RHS Pro Action 23 Deg 220 SF600

220/-

2.02/1.60
4.20

50/64/72

71/57

146/101

205/157

250/177

265/186

272/190

282/195

RHS Pro Action 23 Deg 220 Joe Sherman SF600 Iron

220/-

2.02/1.60

N/A

68/55

128/99

182/132

233/160

269/184

290/192

301/201

RHS 220 Smithberger Racing Iron

N/A

2.02/1.60
4.155
No Pipe

N/A

73/53

131/115

190/147

241/180

279/196

300/201

303/206

RHS 220 Ported Smithberger Racing Iron

244/82

2.08/1.60
4.155
No Pipe

74/48

146/103

202/140

248/185

283/206

313/219

328/226

336/234

343/238

RHS 220 Weingartner Racing Back Cut Alum

N/A

2.02/1.60
4.155
No Pipe

N/A

65/59

126/99

184/129

230/155

265/176

285/187

289/194

282/196

280/196

RHS 220 Speier Racing Heads Alum

N/A

2.02/-
4.155

N/A

133/-

187/-

233/-

268/-

281/-

282/-

281/-

280/-

RHS 220 Speier Racing Heads Alum

N/A

2.02/-
4.155

N/A

135/-

183/-

232/-

268/-

291/-

297/-

303/-

305/-

307/-

RHS Pro Action 23 Deg 228 3V Performance CNC

228/-

2.05/1.60
4.03
No Pipe

N/A

78/60

144/104

199/140

249/165

280/188

302/211

315/214

RHS Pro Action 23 Deg 235 SF600

235/-

2.08/1.60
4.20

64/72

73/60

138/114

196/152

243/178

274/183

292/191

312/195

RHS Pro Action 23 Deg 235 Meaux Racing Out of Box SF600 Iron

235/-

2.08/1.60
4.00
No Pipe

N/A

102/85

158/124

199/149

239/169

275/179

300/188

309/191

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

RHS Pro Action 23 Deg 235 Meaux Racing Out of Box SF600 Best out of 12 pairs Iron

235/-

2.08/1.60
4.125
No Pipe

N/A

110/85

160/128

211/154

255/171

291/181

310/188

311/190

310/192

RHS Pro Action 23 Deg 235 Competition Engines

235/-

2.08/1.60
4.03

N/A

113/91

161/119

209/141

248/157

281/166

293/173

RHS 235 Ported T-Flow

N/A

2.08/1.60
4.16

N/A

139/-

191/158

237/-

280/190

308/-

316/206

320/-

321/-

RHS Pro Action 14 Deg as Cast

235/-

2.125/1.625

N/A

72/59

142/109

216/160

279/205

321/227

345/236

350/246

RHS Pro Action 14 Deg Ported Slick Rick Racing Heads

N/A

2.18/1.625

N/A

130/-

205/-

260/-

318/-

360/-

380/-

385/-

387/-

394/-

RHS 12030 23 Deg Meaux Racing Out of Box SF600 Alum

235/-

2.08/1.60
4.125
No Pipe

N/A

118/98

162/141

209/171

251/186

277/192

278/195

277/196

RHS Pro Topline 235 CNC Out of Box Weingartner Racing

235/-

2.08/1.60
4.125
No Pipe

77/59

134/110

187/142

236/168

274/191

306/200

318/204

RHS 235cc GPA Jet Sprint Ported Kelford Cams Iron

N/A

2.08/1.60

64/72

80/69

147/129

203/166

249/193

280/208

299/213

312/215

RHS 235cc Out of Box Speier Racing Heads SF600

N/A

2.08/-
4.155

N/A

121/-

171/-

213/-

253/-

280/-

283/-

279/-

RHS 235cc Econo Ported Speier Racing Heads

N/A

2.08/1.60

N/A

141/119

194/154

247/176

286/191

314/199

321/201

324/211

RHS 235cc Ported Speier Racing Heads

N/A

2.08/1.60
4.155

N/A

140/132

200/160

249/189

289/212

321/224

336/232

338/236

339/-

RHS Ported Speier Racing Heads

N/A

2.10/1.60

N/A

340/-

348/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

RHS Vortec 23 Deg Iron

170/-

1.94/1.50

N/A

252/-

RHS Pro Torker Vortec 23 Deg SF600 Iron

170/-

1.94/1.50
4.20

71/59

144/114

209/146

258/159

268/165

RHS Pro Torker Vortec 23 Deg SF600 Iron

170/-

2.02/1.60
4.20

77/74

155/140

220/168

263/172

270/174

RHS Pro Torker 23 Deg Out of Box Weingartner Racing Brez Iron

N/A

2.02/1.60
4.155
No Pipe

N/A

70/54

126/106

186/143

222/151

254/154

235/155

RHS 12407 Out of Box 30 BC Randy Iron

170/-

1.94/-
4.06

N/A

135/-

188/-

230/-

241/-

RHS 12410 Out of Box 30 BC Randy Iron

170/-

2.02/-
4.06

N/A

143/-

198/-

233/-

246/-

Trick Flow G1 SF600

180/-

2.02/1.60
4.03
1 3/4" Pipe

66/52

143/110

187/148

223/178

232/194

240/204

Trick Flow G2 31500005 CARB SF600

190/82

2.02/1.60
4.03
1 3/4" Pipe

68/53

144/106

206/144

242/173

252/195

257/205

Trick Flow 18 Deg Ultra SF600

230/-

2.15/1.60

334/256

Trick Flow 18 Deg Ultra Race SF600

250/100

2.15/1.60
4.155
2" Pipe

73/61

144/113

215/158

274/200

313/230

334/248

334/256

Trick Flow 18 Deg Ultra CNC SF600

250/100

2.15/1.60
4.155
2" Pipe

73/56

144/103

221/150

280/204

315/236

338/258

343/269

Trick Flow 18 Deg SF600 Alum

250/100

2.15/1.625

144/113

217/152

276/198

316/219

328/231

328/237

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow 18 Deg Cartridge Roll Clean-up SF600 Alum

250/100

2.15/1.60
4.155
2 pipe

73/61

144/113

215/158

274/197

313/224

334/237

334/246

Trick Flow 18 Deg CNC Chamber Intake Port Match SF600 Alum

250/100

2.15/1.60
4.155

N/A

71/-

149/-

221/-

277/-

319/-

351/-

343/-

Trick Flow 18 Deg Ported TEA Alum

265/90

2.15/1.60
4.155
2" Pipe

69/55

146/113

225/169

289/239

332/275

354/299

357/312

366/321

Trick Flow 18 Deg Ported TEA Alum

274/109

2.18/1.60

N/A

60/52

131/120

209/175

275/229

333/273

369/294

381/308

390/317

396/324

Trick Flow 18 Deg Ported TEA Alum

275/95

2.18/1.60
4.185
2" Pipe

64/55

137/124

220/190

286/243

340/285

383/305

402/313

404/316

405/320

Trick Flow 18 Deg Ported TEA Alum

295/109

2.20/1.60

N/A

64/52

133/120

216/175

282/229

340/273

385/294

412/308

420/317

425/324

Trick Flow 18 Deg Ported BES Alum

258/-

2.15/1.60

129/108

197/150

258/182

302/208

336/224

358/235

364/240

Trick Flow 18 Deg Ported BES Alum

280/110

2.20/1.60

71/42

142/90

229/145

298/188

350/225

380/245

389/256

395/265

400/269

402/275

Trick Flow 30400001 Alum CHP

195/73

2.02/1.60

60/43

125/86

174/117

215/144

239/162

243/175

Trick Flow 23 Deg Super Street SF600 Alum

175/67

1.94/1.50
4.03
1 3/4" Pipe

62/57

127/109

180/142

219/167

242/181

245/192

Trick Flow 23 Deg Super Street Alum

175/67

1.94/1.50

61/53

127/105

180/142

216/160

242/172

242/180

Trick Flow 23 Deg Super Street/Strip SF600 Alum

195/72

2.02/1.60

254/190

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow 23 Deg Super Street/Strip CNC Chamber SF600 Alum

195/72

2.02/1.60
4.03
1 3/4" Pipe

71/53

142/99

196/135

234/167

249/186

249/199

Trick Flow 23 Deg Super Race SF600 Alum

215/78

2.08/1.60
4.155
1 7/8" Pipe

67/72

66/57

141/107

199/145

244/175

273/190

282/198

287/203

Trick Flow 23 Deg Super 215 3240 SF600 Alum

215/78

2.08/1.60
4.155
1 7/8" Pipe

67/72

66/58

141/108

199/147

244/180

273/202

282/214

287/223

Trick Flow 23 Deg Super Race CNC SF600 Alum

230/78

2.08/1.60
4.155
1 7/8" Pipe

69/55

144/112

213/158

265/195

296/220

305/234

310/240

Trick Flow TFS 23 Deg CHP

N/A

2.02/1.60

N/A

65/70

133/102

188/140

226/164

250/183

Trick Flow DHC 23 Deg Alum

175/74

2.02/1.60
4.03
Pipe 1 3/4

65/53

133/104

192/136

233/180

258/198

254/207

Trick Flow R 23 Deg SF600 Alum

215/78

2.08/1.60
-
Pipe

66/57

141/107

199/145

244/175

273/190

282/198

287/203

Trick Flow Duttweiler 23 Deg SF600 Alum

195/72

2.02/1.60

51/58

136/98

191/136

230/163

253/177

254/190

Trick Flow Duttweiler 23 Deg CNC Chamber SF600 Alum

195/72

2.02/1.60

64/56

138/105

198/146

237/171

257/186

258/196

Trick Flow 23 Deg Ported TEA Alum

200/-

2.02/1.60
4.03
Pipe 1 3/4

N/A

68/54

143/117

217/177

263/219

290/243

294/257

Trick Flow 23 Deg Ported TEA Alum

N/A

2.08/1.60
4.125
Pipe 2"

N/A

69/52

144/119

210/182

260/224

300/247

314/257

318/262

Trick Flow 23 Deg 195 Ported Weingartner Racing Alum

205/-

2.02/1.60
4.03
No Pipe

67/50

140/108

241/138

260/180

270/195

275/210

272/215

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

World S/R Replacement SF600 Iron

170/65

1.94/1.50
-
No Pipe

58/67/76

232/161

World S/R Replacement SF1020 Iron

170/65

1.94/1.50
-
No Pipe

58/67/76

220/151

World S/R Torquer SF600 Iron

170/65

2.02/1.60
-
No Pipe

67/76

63/53

129/102

186/137

217/146

235/151

222/153

219/154

217/154

World S/R Torquer SF1020 Iron

170/65

2.02/1.60
-
No Pipe

67/76

60/50

123/97

177/130

206/139

223/143

211/145

208/146

206/146

World S/R Torque Iron CHP

171/82

2.02/1.60
-
No Pipe

67/76

68/55

128/100

179/133

205/145

221/153

225/155

World S/R Torque Iron CHP

171/82

2.02/1.60
-
Pipe

67/76

68/55

128/104

179/140

205/156

221/166

225/170

World S/R Torquer Ported Blackstone Iron

180/-

1.94/1.50

81/66

151/123

214/149

252/162

258/172

266/177

270/177

World S/R Torque Tri-Mark Iron

N/A

2.02/1.60

N/A

64/53

128/110

176/126

194/135

196/136

198/137

World S/R Torque Ported Tri-Mark Stealth Iron

N/A

2.02/1.60

N/A

70/59

137/114

188/136

220/149

227/155

230/160

World CHP Iron

200/-

2.02/1.60
-
No Pipe

N/A

132/98

187/123

225/138

240/150

243/156

World Sportsman II SF600 Iron

200/69

2.02/1.60
-
No Pipe

64/72

260/176

World Sportsman II Iron

200/64

2.02/1.60
-
Pipe

64/72

187/131

225/150

240/164

243/162

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

World Sportsman II Cast Heads Iron

N/A

2.02/1.60

N/A

64/60

130/107

186/123

212/136

230/142

231/143

235/143

World Sportsman II Out of Box Weingartner Racing Iron

N/A

2.02/1.60
4.125
No Pipe

N/A

72/55

133/97

182/128

228/145

257/160

264/183

263/194

World Sportsman II Ported Cast Heads Iron

N/A

2.02/1.60

N/A

68/58

139/118

196/158

235/178

256/186

272/190

278/192

World Sportsman II Ported Iron

212/-

2.05/1.60
-
No Pipe

N/A

189/145

238/170

270/182

284/190

World Sportsman II Dr Js Performance Iron

200/-

2.02/1.60
-
Pipe

N/A

65/63

134/110

188/130

214/143

224/150

231/153

234/156

World Sportsman II Ported Dr Js Performance Iron

N/A

2.05/1.60
-
Pipe

N/A

72/64

140/110

194/134

236/163

261/205

271/223

276/233

World Sportsman II Ported Iron

N/A

2.02/1.60
4.155

N/A

62/64

134/118

193/158

239/199

263/215

268/224

World Sportsman II Ported Bullet Cylinder Heads Iron

219/89

2.05/1.60

72/57

145/105

206/142

250/167

270/190

288/202

297/215

World Sportsman 200 Tri-Mark Stealth Iron

200/-

2.02/1.60

N/A

61/60

128/113

184/135

210/140

230/144

235/146

World Sportsman 200 Ported Tri-Mark Stealth Iron

N/A

2.02/1.60

N/A

70/59

144/120

197/147

230/161

247/170

255/174

World Motown 220 SF600 Iron

220/70

2.08/1.60
-
No Pipe

66/56

132/117

191/154

235/176

266/189

284/198

287/202

284/205

World Motown 220

220/70

2.08/1.60

N/A

125/105

187/139

225/166

248/182

263/190

266/193

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

World Motown 220 Iron CHP

220/79

2.06/1.60

60/50

123/109

177/142

222/172

243/187

260/195

World Motown 215 SF600 Alum

215/70

2.08/1.60
-
No Pipe

N/A

69/54

128/107

180/141

227/162

263/177

279/186

268/194

268/197

World Motown 215 SF1020 Alum

215/70

2.08/1.60
-
No Pipe

N/A

66/51

122/102

171/134

216/154

250/168

265/177

255/184

255/187

World Motown 235 SF600 Alum

235/70

2.08/1.60
-
No Pipe

65/56

135/107

198/147

247/174

284/174

296/203

300/211

301/215

World Motown 235 SF1020 Alum

235/70

2.08/1.60
-
No Pipe

62/53

128/102

188/140

235/165

270/183

281/193

285/200

286/204

World Motown 250 CNC SF600 Alum

250/-

2.10/1.60
-
No Pipe

N/A

73/66

137/123

206/166

262/193

297/211

309/222

319/229

322/232

World Motown 23 Deg SF600 Alum

235/70

2.08/1.60
-
No Pipe

304/219

World Motown 23 Deg CNC SF600 Alum

235/70

2.08/1.60
-
No Pipe

329/238

World Motown 23 Deg CNC SF1020 Alum

235/70

2.08/1.60
-
No Pipe

306/220

World Motown 23 Deg / Kuntz CNC Alum

250/90

2.10/1.60

World Motown 23 Deg Vortec SF600 Alum

215/70

2.08/1.60
-
No Pipe

283/189

World Motown 23 Deg Vortec SF1020 Alum

215/70

2.08/1.60
-
No Pipe

265/177

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ultra Pro Machining Brodix 10 Deg 4.5" BS I-50 E-50 Alum

N/A

2.23/1.625

N/A

72/54

153/108

241/166

319/220

378/250

415/270

423/281

433/286

Ultra Pro Machining Billet 9 Deg Alum

299/215

2.20/1.625

N/A

70/54

153/103

227/156

300/209

360/243

406/266

421/279

Ultra Pro Machining Billet 9 Deg I-50 E-50 Alum

299/215

2.20/1.625

N/A

70/54

143/109

235/166

309/220

367/250

408/274

416/287

422/294

Ultra Pro Machining Billet 9 Deg 4.5" BS I-50 E-50 Alum

N/A

2.23/1.625

N/A

73/54

153/109

237/166

310/220

368/250

415/274

423/287

433/294

Ultra Pro Machining Billet 9 Deg 4.5" BS I-55 E-55 Alum

320/215

2.25/1.60

N/A

65/53

135/104

224/160

297/216

363/249

413/275

440/288

440/295

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS Ported Texas Speed Alum

N/A

2.02/1.57
3.90
No Pipe

N/A

65/60

131/106

192/146

241/181

273/203

292/218

GM LSX CNC Texas Speed Alum

274/83

2.20/1.61
-
No Pipe

72/64

171/106

249/154

309/200

354/232

384/248

397/261

GM LSX Ported Darin Morgan Alum

N/A

2.25/1.60

157/115

229/158

298/198

351/220

395/236

409/243

420/251

423/254

429/261

GM LS1 853 SF600 Alum

200/70

2.00/1.55

66.7

67/52

122/97

178/133

215/156

219/170

227/180

GM LS1 853 Ported MTI Stage IIE Alum

N/A

2.02/1.55

N/A

65/53

135/105

195/141

244/165

276/193

300/211

GM LS1 853 Ported Alum

N/A

2.00/1.55

N/A

128/101

185/135

226/165

256/181

262/192

265/196

GM LS1 SF600

N/A

2.00/1.55
3.90
1 7/8" Pipe

N/A

136/108

196/145

217/170

224/186

230/198

GM LS1 Alum

204/70

2.00/1.55
3.90

N/A

148/103

200/152

216/167

225/181

238/190

GM LS1 Alum

204/70

2.00/1.55

123/108

180/147

219/172

231/193

GM LS1 Alum CHP

204/-

2.00/1.55
-
Pipe

83/62

134/104

189/136

222/165

240/179

252/185

GM LS1 241 Alum HRM

205/70

2.00/1.55
4.03

64/55

137/106

190/141

216/179

228/193

238/203

244/206

GM LS1/LS6 241 Ported BES Alum

N/A

2.00/1.55

N/A

143/106

205/145

243/187

266/204

275/216

280/221

285/223

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS1 Ported AP Engineering Alum

235/-

2.02/1.575
3.970
Pipe

N/A

73/54

150/111

207/155

252/195

285/221

292/231

301/237

GM LS1 Ported ET Performance 215 SF600 Alum

215/-

2.04/1.57
3.90
No Pipe

35-72

74/57

152/106

219/150

266/190

301/204

320/211

GM LS1 Ported ET Performance 224 SF600 Alum

224/-

2.02/1.57
3.90
No Pipe

68/56

143/112

196/158

247/190

280/206

303/214

311/218

GM LS1 Ported ET Performance 225 SF600 Alum

225/-

2.08/1.57
4.00
No Pipe

35-72

71/57

153/114

208/164

265/204

308/224

328/231

320/236

GM LS1 CNC M2 Alum

N/A

2.02/1.60

N/A

66/54

141/114

195/160

252/190

292/206

317/220

GM LS1 Ported No Rush Alum

N/A

2.02/1.57
-
No Pipe

N/A

70/57

151/108

209/154

260/188

287/210

288/220

297/227

290/204

GM LS1 Ported No Rush Alum

N/A

2.02/1.57
-
Pipe

N/A

70/57

151/113

209/167

260/212

287/233

288/249

297/254

290/204

GM LS1 Ported Bullet Cylinder Heads Stage I Alum

217/85

2.00/1.57

77/54

144/113

213/158

259/191

262/206

265/213

GM LS1 Ported Bullet Cylinder Heads Stage II Alum

221/91

2.02/1.575

72/57

141/113

203/158

256/191

280/206

296/213

GM LS1 Ported Bullet Cylinder Heads Stage III Alum

225/91

2.08/1.575

72/57

141/113

203/158

256/191

280/206

296/213

GM LS1 CNC RLD Performance Alum

217/-

2.00/1.55

N/A

132/109

187/147

238/175

274/193

281/206

GM 5.3L CCM Alum

205/-

1.89/1.55
3.78

65/52

133/101

189/134

208/161

219/175

223/187

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM 5.3L Ported West Coast Stage 1 CCM Alum

209/-

1.94/1.57
3.78

65/57

141/109

187/150

227/175

256/198

252/211

GM 5.3L Ported Stage II ForceFed High Performance

N/A

2.02/1.57

N/A

67/62

133/109

194/148

242/184

274/205

296/220

GM 5.3L Ported Absolute Speed Alum

N/A

2.02/1.60

N/A

142/116

203/159

256/196

291/215

314/228

GM 5.3L Ported Absolute Speed Alum

N/A

2.02/1.60

N/A

144/117

204/157

256/194

293/218

306/224

GM 5.3L Ported TEA Stage 2 Alum

N/A

2.02/1.55

N/A

72/55

142/105

206/151

255/193

290/231

306/260

GM 5.3L Ported Texas Speed Alum

N/A

-
3.91

N/A

81/52

150/114

208/153

256/183

286/206

285/221

GM 5.3L CNC FFHP Stage 2.5 SF600 Alum

229/84

2.055/1.60
3.905
1 3/4" Pipe

71/64

148/119

215/161

256/199

289/228

311/235

GM 5.3L Ported Patriot Stage 3 SF1020 Alum

N/A

2.055/1.60
3.905

N/A

70/60

149/113

210/152

251/189

284/215

302/230

GM LS1 806 NPS

N/A

2.00/1.55
4.016
No Pipe

N/A

66/55

129/98

182/129

214/155

225/167

231/173

236/177

GM LS1 5.3L 862 Ported ET Performance SF600 Alum

230/-

2.055/1.57
4.00
No Pipe

64-72

82/58

162/115

210/154

265/187

297/209

320/222

GM LS1 5.3L 862 Ported ForceFed SF600 Alum

N/A

2.00/1.55

N/A

140/112

202/157

247/193

282/221

296/232

GM LS1 5.3L Ported TEA Stage 1.5 Alum

N/A

2.02/1.57

N/A

67/54

140/122

203/172

251/218

289/244

314/260

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS1 5.3L Ported TEA Stage 2 Alum

N/A

2.02/1.57

N/A

67/57

140/111

208/169

252/213

290/241

317/255

GM LS1 5.3L Ported TEA Stage 3 Alum

N/A

67/55

143/115

211/157

257/201

299/256

326/276

GM LM7 5.3L Ported West Coast Stage 2 Alum

N/A

1.94/1.57

305/223

GM LM7 5.3L Ported West Coast Stage 2 Alum

235/85

2.02/1.57

305/223

GM LM7 LS 5.3l Ported Patriot Performance Stage I Alum

213/78

2.00/1.55

66.7

63/57

128/103

188/141

234/176

268/196

289/212

GM LS1 5.3l / 5.7L Ported Patriot Performance Stage II OLD Alum

213/78

2.02/1.57

66.7

67/61

133/108

194/147

242/183

274/205

296/220

GM LS1 5.3l / 5.7L Ported Patriot Performance Stage II Alum

220/67

2.02/1.57

63/67

67/61

133/108

194/147

242/183

274/205

296/220

GM LS1 5.7L Ported TEA Stage 1 Alum

N/A

68/50

138/105

203/151

243/191

274/222

292/245

GM LS1 5.7L Ported TEA Stage 1 Alum

N/A

2.00/1.55
3.90
Pipe

N/A

67/60

137/113

202/163

249/202

288/228

296/244

GM LS1 5.7L Ported TEA Stage 1.5 Alum

N/A

2.02/1.57

N/A

68/52

139/108

200/160

248/209

283/237

300/255

GM LS1 5.7L Ported West Coast Stage 2 Alum

N/A

2.02/1.57

293/223

GM LS 5.3L 241 Weingartner Racing Alum

N/A

2.00/1.55
4.125
No Pipe

N/A

74/54

156/106

214/151

252/176

251/187

256/191

261/195

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS 5.3lL Ported PRC Stage 2.5 Alum

215/-

2.02/1.575
3.91
No Pipe

N/A

147/111

206/145

254/185

291/204

312/223

GM LS1 5.7L 241 Advanced Induction SF600 Alum

204/-

2.00/1.55
3.90
No Pipe

N/A

66/55

139/101

193/136

215/160

226/171

233/180

238/183

GM LS1 5.7L 241 Ported 219 Advanced Induction SF600 Alum

219/-

2.00/1.55
3.90
No Pipe

N/A

66/54

143/101

208/144

251/174

271/197

285/209

287/215

GM LS1 243 Ported LME Alum

330/118

2.125/1.59
4.125
No Pipe

61.5

75/63

146/127

226/171

292/216

330/254

346/265

359/271

GM LS1 241 Ported Speier Racing Heads Alum

N/A

2.02/1.57
4.00
1 7/8" Pipe

N/A

155/112

219/155

263/187

278/211

289/233

295/244

298/250

301/253

303/255

GM LS1 6.0L Ported AP Engineering Stage I Alum

N/A

2.02/1.575
3.970

N/A

66/62

139/117

213/161

259/200

283/219

297/229

305/243

GM LS1 6.0L Ported AP Engineering Alum

235/90

2.08/1.60
4.125
Pipe

N/A

75/63

153/115

217/163

265/207

310/243

327/262

328/272

329/273

GM LS1 6.0L Ported ET Performance Alum

237/-

2.055/1.57
3.90

64-70

67/52

138/112

198/159

249/182

286/200

311/210

GM LS1 6.0L Ported LME Alum

250/-

2.08/1.60

N/A

136/114

206/168

266/209

304/231

335/240

341/243
@.650

GM LS2 243 Ported Greg Good 2 Alum

N/A

2.055/1.60
4.00

N/A

147/126

225/171

279/215

321/237

337/244

GM LS1/LS2 Ported PRC Alum

215/84

2.04/1.60
4.00
No Pipe

68/56

145/115

214/167

271/202

304/219

318/238

GM LS1/LS2 Ported PRC Alum

237/85

2.10/1.60
4.03
No Pipe

66/57

147/117

225/170

284/206

325/227

334/241

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS6

N/A

2.00/-

N/A

156/-

204/-

243/-

268/-

278/-

GM LS6 SF600

N/A

2.00/1.55
3.90
1 7/8" Pipe

N/A

62/59

126/108

184/143

224/163

251/176

257/183

GM LS6/LS2 243 / 799 Advanced Induction SF600 Alum

211/-

2.00/1.55
4.00
No Pipe

N/A

66/52

139/110

194/147

236/167

265/175

260/183

262/186

GM LS6/LS2 243 / 799 Ported 226 Advanced Induction SF600 Alum

226/-

2.00/1.55
4.00
No Pipe

N/A

66/53

146/109

215/144

259/170

290/197

300/212

301/221

GM LS6/LS2 243 / 799 Ported 232 Advanced Induction SF600 Alum

226/-

2.00/1.55
4.00
1 7/8" Pipe

N/A

69/53

146/115

214/157

258/204

293/256

305/271

315/277

GM LS6/LS2 243 / 799 Ported Flow Tech Induction Alum

N/A

2.00/1.55
3.90
1 3/4 Pipe

N/A

65/55

146/120

200/164

248/192

285/202

303/209

GM LS 243 / 799 Ported Thompson Motorsports Alum

N/A

2.02/1.575

N/A

78/57

138/106

204/140

259/166

288/185

306/197

313/200

GM LS6/LS2 CNC RLD Performance Alum

236/-

2.00/1.55

139/116

200/151

256/184

298/204

317/215

308/222
@.650

GM LS6 243 / 317

210/75

2.00/1.55

64/71

236/185

GM LS6 243 / 799 Ported PRC Stage 1 SF600 Alum

226.5/75

2.00/1.55

64.5

72/63

142/121

205/154

255/191

286/214

305/220

GM LS6 243 / 799 Ported PRC Stage 2 SF600 Alum

238/75

2.02/1.57

64.5

75/66

151/124

209/160

260/194

293/217

315/227

GM LS6 243 Ported West Coast Stage 2 Alum

233.3/86.3

2.02/1.57
4.03
Pipe

70/58

142/119

202/167

246/206

288/221

312/234

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS6 243 CNC M2 Race Systems Alum

235/-

2.08/1.60
4.03

66/54

141/114

195/160

252/190

292/206

319/215

313/220

GM LS6 243 Out of Box Ported MTI Alum

N/A

2.02/1.57

N/A

70/53

138/103

201/144

250/190

285/214

316/226

312/230

GM LS6 243 NPS

N/A

2.00/1.55
-
No Pipe

N/A

62/54

134/103

191/131

230/153

252/165

248/173

248/-

GM LS6 243 Ported NPS

N/A

2.00/1.55
-
No Pipe

N/A

65/53

132/106

200/148

252/178

285/194

303/203

296/208

301/212

GM 243 Porter Weingartner Racing Alum

N/A

2.02/1.60
4.03
No Pipe

64/49

147/103

206/144

250/180

283/198

304/214

291/218

300/221

306/225

311/230

GM 243 Ported TEA Stage 2 Alum

225/-

2.04/1.575

67/57

138/123

216/182

269/234

309/257

327/265

GM 243 Ported Straub Technologies Alum

230/80

2.02/1.60

155/121

206/180

259/216

291/232

306/241

306/247

308/251

GM LS6 317 VJ Milled 0.030 Weingartner Racing Alum

N/A

2.00/1.55
4.125
No Pipe

N/A

92/69

169/126

225/159

263/180

267/188

268/190

GM 317 Porter Weingartner Racing Alum

N/A

2.02/1.60
4.03
No Pipe

68/53

158/108

214/156

258/190

275/208

281/217

294/225

300/227

300/229

302/232

GM LS6 317 West Coast Alum

N/A

2.00/1.57
4.03
No Pipe

N/A

65/53

142/112

204/147

233/165

250/174

253/184

GM LS6 317 Ported West Coast Stage 2 Alum

232.4/86.3

-
4.03
Pipe

73.5

70/59

145/119

210/174

250/213

288/228

294/232

GM LS6 317 / LQ9 Ported Meaux Racing Alum

N/A

2.08/1.60

134/117

212/172

258/216

286/231

296/238

302/241

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS6 317 Ported Bullet Cylinder Heads Alum

N/A

2.00/1.575

N/A

96/58

141/109

199/148

241/175

263/189

282/210

GM LS6 317 Ported TEA Stage 1 Alum

N/A

2.00/1.555
4.00
1.875 Pipe

64/57

141/114

212/166

261/210

302/235

314/246

GM LS6 317 Ported TEA Stage 3 Alum

N/A

2.08/1.60

N/A

70/59

138/125

203/178

261/228

301/263

332/281

GM LS6/LS1/LS2 317 Ported BES Alum

N/A

2.00/1.55

141/119

197/161

251/192

280/213

293/226

301/235

307/241

GM LS6 CNC SDPC

N/A

2.00/1.55

N/A

67/50

142/104

210/150

254/185

290/203

286/212

GM LS6 Ported Stage II ForceFed High Performance

N/A

2.02/1.60

59/64

73/69

143/127

205/161

246/198

282/223

309/231

GM LS6 Ported TEA Stage 1 Alum

N/A

2.00/1.55
3.90
1 7/8" Pipe

N/A

64/47

145/114

215/166

254/222

293/244

310/256

GM LS6 Ported TEA Stage 1.5 Alum

N/A

2.02/1.57

N/A

67/50

139/119

205/174

254/224

294/247

320/257

323/-

GM LS6 Ported TEA Stage 1.5 Jasson Alum

N/A

2.02/1.57

N/A

281/258

306/268

GM LS6 Ported TEA Stage 2 Alum

229/84

2.04/1.57
3.90
1.875 Pipe

67/54

139/120

219/179

271/224

308/248

320/260

GM LS6 Ported TEA Stage 2 HRM Alum

226/78

2.055/1.57
4.03

66/60

144/118

214/163

269/199

310/223

329/235

310/231

GM LS6 Ported TEA Stage 2.5 Out of Box SF600 Alum

253/-

2.02/1.57

N/A

73/59

140/121

205/175

256/228

295/264

322/278

337/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS6 Ported TEA Stage 3 Alum

N/A

73/52

148/126

219/182

269/233

311/260

346/270

GM LS6 Ported Katech Alum

240/88

2.10/1.55

N/A

75/51

153/127

218/167

267/207

306/221

330/230

GM LS6 Ported Patriot Alum

N/A

2.02/1.57

59/64

72/65

140/124

202/160

244/196

280/220

304/220

GM LS6 Ported Patriot - Demirjian Alum

235/85

2.05/1.60
3.90
1 3/4 Pipe

65/54

135/102

192/163

238/169

273/181

294/188

GM LS6 Ported Stage 3 Precision Porting Alum

220/80

2.05/1.57

91/67

164/107

224/161

270/192

305/219

298/233

GM LS6 Ported ET Performance Alum

234/-

2.02/1.57
4.155

N/A

66/55

146/120

198/163

245/188

282/200

305/208

GM LS6 Ported ET Performance 234 SF1020 Alum

234/-

2.055/1.57
3.90

N/A

71/57

137/106

203/145

252/190

285/203

305/210

GM LS6 Ported ET Performance 237 SF1020 Alum

237/-

2.08/1.57
4.155

N/A

68/56

151/119

207/168

260/205

301/223

326/228

GM LS6 Ported Texas Speed 237 Alum

237/-

2.04/1.57

N/A

151/124

209/160

260/194

293/217

315/227

GM LS7 Ported Alum CCM

270/84

2.20/1.61
4.03

71/60

145/120

222/159

271/192

315/207

348/219

352/221

GM LS7 Ported ET Performance Alum

250/-

2.125/1.60
4.00

35-72

73/56

154/110

236/166

287/199

321/214

345/222

GM LS7 CNC Lingenfelter Alum

275/84

2.205/1.615
-
No Pipe

174/120

256/164

312/200

352/222

384/234

396/242

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LS7 CNC Lingenfelter Alum

N/A

2.205/1.615
-
Pipe

174/127

256/180

312/217

352/240

384/260

396/273

GM LS Greg Good 245 Alum

N/A

2.125/1.60
4.03
No Pipe

N/A

148/117

228/160

301/196

339/247

354/263

355/272

GM LS7 8452 12 Deg (Stock) West Coast SF600 Alum

259/86

2.20/1.61
4.155
No Pipe

163/115

245/168

306/206

344/218

370/226

336/229

GM LS7 CNC West Coast Alum

267/99

2.205/1.625
4.155
No Pipe

N/A

81/58

161/108

250/163

276/205

357/232

389/245

380/251

GM LS7 Ported PRC SF600 Alum

285/-

2.25/1.61
4.125

169/119

248/179

311/211

353/234

386/235

407/246

GM LS7 7.0l HRM Alum

240/-

2.10/1.60
-
No Pipe

N/A

161/113

245/172

307/200

346/211

374/219

347/224

344/228

GM LS7 CNC SDPC

283/86

2.20/1.61

70/58

159/111

237/157

301/199

349/220

378/229

389/238

GM LS7 CNC RLD Performance Alum

N/A

2.20/1.61

N/A

81/61

172/122

252/189

314/236

363/262

376/272

390/281

393/281
@.750

GM LS7 Ported BES Alum

N/A

2.205/1.61

N/A

68/55

137/119

217/169

294/216

339/240

367/255

385/260

394/265

GM LQ9 Ported Patriot Stage 2 Alum

N/A

2.055/1.57

70/66

138/122

200/162

241/203

277/227

304/235

GM LQ9 Ported Patriot Stage 3 Alum

225/83

2.08/1.60
4.125

76/66

145/122

207/163

254/205

295/229

320/236

GM LQ9 / LS6 / LS2 Ported Patriot Stage 2 Alum

227/70

2.055/1.57

72/66

140/124

202/160

246/199

280/220

304/229

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

GM LQ9 / LS6 / LS2 Ported Patriot Stage 3 Alum

227/70

2.08/1.60

75/66

147/124

209/164

255/206

297/229

320/235

GM LS Cathedral Ported PRC SF600 Alum

247/84

2.12/1.60
4.03

66/57

147/117

228/170

282/206

321/227

343/235

360/245

GM LS Ported ET Performance 245 SF600 Alum

245/-

2.10/1.57
4.00
No Pipe

N/A

73/57

152/114

209/164

266/204

312/224

338/231

320/236

GM LS Ported ET Performance 245 Redone I-45 E-50 SF600 Alum

245/-

2.125/1.55
4.03

149/-

225/-

281/-

325/-

354/-

344/-

GM LS Ported ET Performance 255 SF600 Alum

255/-

2.10/1.57
4.00
No Pipe

N/A

71/55

147/113

227/159

285/213

324/229

349/236

360/242

GM LS Ported ET Performance 265 SF600 Alum

265/-

2.10/1.57
4.00
No Pipe

N/A

73/55

155/113

212/159

271/213

323/229

352/236

373/242

GM C5R Ported ET Performance 240 Alum

240/-

2.18/1.625
4.125

66/51

153/106

216/153

277/206

325/232

363/240

388/242

397/243
@.750

GM LS98/76 Ported Bullet Cylinder Heads Alum

N/A

2.00/1.575

N/A

82/66

162/114

233/151

282/179

319/198

344/212

358/223

GM LS3/LSA/LS9/L92 Ported Frankenstein Engine Dynamics Stage I SF600 Alum

282/92

2.165/1.59
4.06

81/60

162/121

238/195

290/226

340/242

373/250

392/258

GM LT83 Ported Straub Technologies Alum

N/A

1.93/1.55
4.00

137/83

208/125

239/163

261/185

280/191

289/194

301/196

303/198

Chevy L92 Alum CCM

260/90

2.16/1.59
4.03

72/63

148/126

212/162

264/189

302/205

322/214

316/221

Chevy L92 Livernois Motorsports Alum

N/A

2.16/1.59
4.125

N/A

79/58

153/114

225/147

276/170

310/183

332/189

330/193

317/196

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy L92 Weingartner Racing Brez Alum

N/A

2.16/1.59
4.155
No Pipe

N/A

66/56

153/114

221/160

309/189

330/203

325/211

332/214

Chevy L92 Ported Head Shop Alum

N/A

2.16/1.59

N/A

158/114

221/160

280/199

312/226

337/244

346/250

Chevy L92 West Coast Alum

261/90

2.16/1.59
4.03
2 1/2 Pipe

69.8

75/64

154/126

225/162

275/190

309/205

329/215

310/221

Chevy L92 West Coast Alum

261/90

2.16/1.59
4.155
No Pipe

69.8

74/63

153/121

225/157

277/176

313/188

336/194

327/198

Chevy L92 CNC West Coast Stage 2 Alum

268/99

-
4.03
No Pipe

75/63

160/117

224/182

275/213

308/232

344/243

355/248

Chevy L92 CNC West Coast Stage 2 Alum

268/99

-
4.155
No Pipe

75/65

160/116

227/180

280/219

323/240

354/248

364/253

Chevy L92 CNC West Coast Stage 3 Alum

N/A

2.20/-
4.155

N/A

79/-

161/-

236/-

293/-

336/-

365/-

380/-

Chevy L92 CNC West Coast Stage 3 Alum

280/99

2.20/1.60
4.155

79/57

161/118

237/182

293/222

336/240

365/249

375/254

Chevy L92 CNC West Coast HRM Alum

280/97

2.20/1.60

71/60

159/116

227/174

270/218

320/234

349/247

361/253

Chevy L92 Lingenfelter Alum

261/89

2.165/1.59

N/A

152/117

222/155

272/180

306/191

328/199

304/202

Chevy L92 CNC Competition CNC SF600 Alum

266/93

2.165/1.59

68.5

76/58

161/117

229/171

282/210

323/230

343/240

353/245

Chevy L92 / LS3 821 Alum HRM

260/90

2.165/1.59

67/59

147/116

211/157

259/188

297/207

312/216

314/223

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy L92 / L76 CNC GMPP CCM Alum

280/100

2.16/1.59
4.065

N/A

150/105

222/140

260/168

298/190

332/201

Chevy L92 364 CNC GMPP HRM Alum

279/95

2.165/1.59

71/61

150/110

226/154

273/184

313/206

341/219

Chevy L92 / LS3 Lingenfelter Alum

261/89

2.165/1.59

N/A

156/120

226/158

276/183

310/194

332/202

308/205

Chevy L92 / LS3 CNC Lingenfelter Alum

275/93

2.165/1.59
4.065

N/A

156/116

228/160

280/199

320/218

346/229

340/235

Chevy L92 / LS3 CNC Lingenfelter Alum

275/93

2.165/1.59
4.125

N/A

158/116

230/161

282/201

322/220

350/231

344/237

Chevy L92 / LS3 823 CNC Lingenfelter HRM Alum

271/93

2.165/1.59

67/54

141/112

207/173

261/217

303/238

341/252

360/254

Chevy L92 / LS3 Ported TEA Stage 2 Alum

287/95

2.165/1.59
4.125
1.875 Pipe

71/55

155/118

240/190

302/253

344/273

360/284

Chevy L92 / LS3 823 Ported TEA HRM Alum

279/91

2.165/1.59

70/57

144/110

226/153

285/191

326/219

350/232

365/241

Chevy L92 / LS3 Ported Head Shop Alum

N/A

2.165/1.59

N/A

221/160

280/199

312/226

337/244

346/250

Chevy L92 / LS3 Advanced Induction SF600 Alum

260/-

2.165/1.59
4.03
No Pipe

N/A

80/58

152/118

219/157

261/183

280/195

306/202

308/207

Chevy L92 / LS3 Ported 267 Advanced Induction SF600 Alum

267/-

2.165/1.59
4.03
No Pipe

N/A

75/55

155/109

233/150

292/182

329/204

349/217

364/227

Chevy L92 / LS3 Ported PRC Alum

N/A

2.165/1.59

N/A

154/117

223/179

282/202

323/219

349/232

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy L92 / LS3 Ported LME Alum

N/A

2.165/1.60
4.07
No Pipe

N/A

82/73

157/124

242/171

292/206

345/232

367/239

Chevy L92 / LS3 CNC RLD Performance Alum

277/-

2.16/1.59

68-69

144/124

224/179

276/198

313/223

338/248

347/255

Chevy L92 / LS3 Ported BES Alum

N/A

2.165/1.59

154/125

229/179

284/212

323/236

339/248

340/255

354/259

Chevy LS3 823 Ported Straub Technologies Alum

260/92

2.165/1.60

156/118

238/174

289/208

317/228

344/237

337/245

353/351

356/257

Chevy L92 364 / 716 CNC SD8760 / SD8800 Alum

279/99

2.165/1.59
4.155

69/46

154/100

222/136

266/166

309/189

345/189

358/209

Chevy L92 Ported TEA Alum

N/A

2.165/1.59
4.03
Pipe

67/53

150/118

226/173

287/219

332/247

353/264

368/266

Chevy LS3 Darin Morgin Alum

N/A

2.165/1.60

N/A

158/-

224/-

273/-

305/-

309/-

300/-

309/-

316/-

Chevy LS3 Ported Darin Morgin I-45 T-90% Alum

N/A

2.165/1.60

N/A

159/-

229/-

282/-

320/-

338/-

343/-

349/-

356/-

Chevy LS3 Ported Darin Morgan / Speier Racing Heads I-45 E-45 Alum

265/-

2.165/1.60
4.06

N/A

141/111

219/146

281/175

322/205

349/220

355/225

367/230

Chevy LS3 Ported Smithberg Racing Alum

N/A

2.165/1.59
4.07
No Pipe

N/A

71/41

151/104

233/153

295/192

335/216

358/227

Chevy LS3 Ported LME Alum

N/A

2.165/1.59
4.03
No Pipe

N/A

215/145

280/181

322/215

347/235

368/252

Chevy LS3 Ported Frankenstein Engine Dynamics Alum

N/A

2.165/1.59
4.065

N/A

159/120

237/190

282/225

338/242

368/250

388/255

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy LS99 Ported Mike / New Era Performance Alum

N/A

2.165/1.60

N/A

157/-

233/-

300/-

318/-

340/-

345/-

355/-

363/-

Chevy LS9 West Coast Alum

N/A

2.16/1.60
4.155

N/A

75/60

156/116

216/160

265/188

291/205

280/210

284/215

Chevy LS9 Ported West Coast Alum

N/A

2.16/1.60
4.155

N/A

75/55

154/113

223/172

274/216

318/234

351/242

357/246

Chevy LS9 Ported LME Alum

281/99

2.165/1.60
4.125
No Pipe

89/70

155/127

222/174

284/212

328/244

354/265

365/274

Corvette LT1 C7 Stock Bill Jones Alum

N/A

2.13/1.60
4.03
No Pipe

N/A

73/51

137/116

206/146

262/189

304/202

295/206

302/208

AFR LS1 Street SF600 Alum

205/78

2.02/1.60
3.90
1 7/8" Pipe

66/76

140/112

200/170

251/203

281/221

298/230

AFR LS1 Street SF600 Out of Box Alum

205/-

2.02/1.60
3.90
1 7/8" Pipe

N/A

144/116

208/170

255/206

287/221

302/232

AFR LS1 Street Chamber Wall opened to 4" Alum

205/78

2.02/1.60
4.00
1 7/8" Pipe

158/122

220/170

264/217

285/232

300/241

AFR LS1 Street Chamber Work / Mild Port Work Alum

205/78

2.02/1.60
-
1 7/8" Pipe

N/A

151/129

220/190

266/228

293/242

301/248

AFR LS1 210 Mongoose Street V2 Alum

210/84

2.02/1.60
3.90
1 7/8" Pipe

N/A

153/124

214/178

262/214

293/237

302/237

AFR LS1 210 Enforcer SF600 Alum

210/82

2.02/1.60

148/105

209/150

253/180

265/199

268/207

AFR LS1 Street 215 SF600 Alum

215/84

2.02/1.60
-
1 7/8" Pipe

N/A

152/119

218/180

264/234

295/234

314/245

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR LS1 215 Mongoose Strip V2 Alum

215/84

2.02/1.60
4.06
1 7/8" Pipe

N/A

154/132

219/180

264/221

297/239

312/246

AFR 225 CNC Out of Box SF600 Alum

225/-

2.08/1.60
4.125
No Pipe

N/A

130/108

192/159

246/200

284/219

313/227

335/233

AFR LS1 Street 225 Small Bore Old SF600 Alum

225/85

2.08/1.60
3.90
1 7/8" Pipe

66/76

141/116

205/171

252/204

287/222

310/232

AFR LS1 Street 225 Small Bore SF600 Alum

225/85

2.08/1.60
3.90
1 7/8" Pipe

66/76

142/118

205/175

254/209

288/225

312/237

AFR LS1 Street 225 Small Bore Pray Ported Meaux Racing SF600 Alum

N/A

2.08/1.60
3.90
No Pipe

146/114

203/156

260/196

306/216

331/230

333/237

AFR LS1 Street 225 Large Bore SF600 Alum

225/85

2.08/1.60
4.125
1 7/8" Pipe

66/76

150/120

220/178

266/220

304/241

320/250

AFR LS1 230 Mongoose Small Bore V2 Alum

230/85

2.08/1.60
3.90
1 7/8" Pipe

66/76

157/129

224/183

272/225

311/244

324/252

AFR LS1 230 Mongoose Large Bore V2 Alum

230/85

2.08/1.60
4.125
1 7/8" Pipe

66/76

158/129

230/183

282/225

320/244

328/252

AFR LS1 Street 245 Large Bore SF600 Alum

245/87

2.16/1.60
4.125
1 7/8" Pipe

64/74

156/125

225/185

274/225

315/247

345/260

AFR LSX 245 Mongoose Strip Large Bore SF600 Alum

245/88

2.16/1.60
4.125
1 7/8" Pipe

65/73

164/131

233/185

290/227

332/247

356/257

AFR LS1 245 HRM Alum

245/87

2.16/1.60
4.03

68/55

152/117

225/176

278/214

318/230

343/241

341/242

AFR LS3 238 Enforcer SF1020 Alum

238/-

2.08/1.60
4.060
1 3/4 Pipe

N/A

157/112

229/152

276/182

307/204

308/215

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR LS3 260 Mongoose Large Bore Competition SF600 Alum

260/95

2.165/1.60
4.060
2" Pipe

159/112

234/158

293/207

336/235

366/248

384/255

AFR LS1 Ported TEA Stage 3 Alum

N/A

68/55

141/124

207/187

262/241

304/268

341/278

346/282

AFR LS1 Ported ET Performance Alum

240/-

2.08/1.57
4.00

62-72

78/52

151/105

219/153

270/200

301/220

323/230

333/235

AFR LS1 Ported ET Performance Alum

250/-

2.10/1.57
4.10

78/55

154/111

215/161

276/210

318/228

343/236

352/244

345/-

AirWolf LS3 Ported Dr Js Performance Alum

N/A

2.20/1.60

64-72

79/52

155/115

231/158

291/182

329/220

354/245

375/255

385/266

391/273

398/278

AirWolf LS7 Ported Dr Js Performance SF600 Alum

N/A

2.20/1.60
4.125
1 7/8" Pipe

64-72

74/52

158/109

225/156

301/201

337/229

367/245

397/229

404/270

All PRO Cathedral Ported BES Racing Alum

N/A

2.18/1.60

124/110

192/170

256/230

322/265

360/279

375/287

390/290

395/-

405/-

All PRO LS Ported Meaux Racing Alum

N/A

2.10/1.60

N/A

151/109

215/162

267/198

303/225

324/240

335/246

338/248

All PRO LS Alum

244/88

2.08/1.60

62/72

All PRO LS Alum

250/88

2.125/1.60

62/72

All PRO LSW -1 Ported West Coast Alum

285/108

2.20/1.60
4.155

75/54

155/109

242/162

309/213

355/241

382/255

403/261

410/262
@.750

All PRO LSW -2 310 Ported West Coast Alum

310/116

2.20/1.60
4.155

153/111

225/170

289/211

344/235

375/253

398/262

417/271

423/273
@.850

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

All PRO LSW -2 330 Ported West Coast Alum

330/120

2.25/1.60
4.155

143/112

212/173

272/212

333/237

386/257

419/266

437/274

446/280

All PRO LSW LS3 -3 265 Ported West Coast Alum

265/100

2.165/1.57
4.03

70/54

160/103

245/155

301/200

343/221

372/239

384/248

All PRO LSW LS3 -3 278 Ported West Coast Alum

278/108

2.20/1.60
4.155

77/54

152/109

241/162

312/213

357/241

387/241

405/262

All PRO LSW 12 Deg -1 Ported BES Alum

N/A

2.18/1.60

N/A

144/112

240/155

302/203

364/246

366/265

379/278

382/286

384/290

386/293

All PRO LSW 12 Deg -2 Ported BES Alum

N/A

2.225/1.625

148/100

225/149

293/192

345/244

386/262

418/273

418/280

425/285

434/287

All PRO LSW 12 Deg Alum

272/100

2.15/1.60

62/72

All PRO LSW 12 Deg Alum

284/100

2.20/1.625

62/72

390/260

All PRO LSW LS7 Retro Ported West Coast Alum

267/108

2.20/1.60
4.155

75/54

157/109

253/162

321/213

362/241

390/255

400/262

All PRO LSW LS7 Ported West Coast Alum

267/108

2.25/1.615
4.155

79/54

166/109

253/162

323/213

364/241

394/255

412/263

All PRO LSW LS7 12 Deg Ported West Coast Alum

280/100

2.18/1.60
4.155

N/A

73/52

148/104

218/156

287/206

331/227

359/240

380/248

391/254

All PRO LSW LS7 12 Deg Ported West Coast Alum

285/105

2.20/1.60
4.155
No Pipe

58/70

75/54

161/108

242/162

295/213

343/241

379/255

401/261

All PRO LSW LS7 12 Deg Ported West Coast Alum

312/118

2.25/1.60
4.155
No Pipe

143/112

245/167

319/212

367/242

400/255

426/265

444/272

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

All PRO LSW LS7 12 Deg Ported West Coast Alum

330/120

2.25/1.60
4.155
No Pipe

143/112

219/173

272/212

333/237

386/257

419/266

437/274

446/280

All PRO LSW LS7 12 Deg Ported Jones Engineering 78/135 Alum

274/-

2.20/1.60

165/110

246/144

316/204

359/227

372/240

377/250

390/254

All PRO LSW LS7 12 Deg Ported ET Performance Alum

N/A

64/47

148/100

228/142

318/183

375/214

402/237

414/250

419/258

422/263

Avenger LSx CNC Alum

225/75

2.08/1.60

62/62

127/129

187/179

240/204

282/222

308/233

320/238

324/240

BluePrint Muscle Series LSx CNC Alum

259/106

2.165/1.60

109/70

174/117

231/160

285/199

322/242

349/275

Brodix BR3 15 Deg Alum

N/A

2.165/1.59

150/93

213/142

266/171

316/187

342/200

348/206

Brodix BR3 Ported LME Alum

285/100

2.165/1.60
4.125
No Pipe

68.5

80/63

155/124

233/178

290/225

332/254

354/266

374/273

Brodix BP BR3 15 Deg Alum

280/-

2.165/1.59

146/100

213/146

268/183

318/209

347/226

364/234

Brodix BR 5.3 Alum

245/-

2.02/1.55

121/106

178/137

226/158

267/171

298/177

Brodix BP BR1 13.5 Deg Alum

245/-

2.10/1.60

150/97

226/147

287/198

337/224

359/232

370/236

Brodix BR1 LME Ported Alum

245/100

2.10/1.60
4.125
No Pipe

68.5

80/63

155/103

233/151

290/203

332/229

354/235

374/243

Brodix BR7 12 Deg Alum

262/-

2.204/1.614

150/113

244/158

294/188

334/208

360/216

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix BR7 Ported West Coast Alum

265/99

2.205/1.615
4.155

75/54

155/110

252/156

316/202

357/226

387/242

395/250

Brodix BR7 Ported West Coast Alum

275/99

2.25/1.615
4.155

80/54

164/110

255/156

318/202

364/226

394/242

411/250

Brodix BR7 Ported BES Alum

N/A

2.20/1.625

N/A

77/59

160/113

231/163

296/201

353/245

384/268

403/283

403/291

390/296

388/297

Brodix BR7 Ported Weingartner Racing Alum

N/A

2.204/1.614
4.155
No Pipe

67/56

150/108

231/153

306/198

354/221

385/235

386/241

388/245

407/249

410/250

Brodix BR7 Ported LME Alum

305/106

2.25/1.60
4.125
No Pipe

145/112

234/157

299/206

356/232

379/253

397/263

399/270

Brodix STS BR7 12 Deg Alum

264/-

2.204/1.614

166/119

247/171

309/208

351/221

375/229

Brodix STS BR7 264 12 Deg Alum

264/-

2.204/1.614

159/116

240/169

303/208

343/224

369/233

364/240

Brodix STS BR7 273 12 Deg I-50 E-45 Alum

273/-

2.25/1.614

147/116

233/169

286/208

344/224

381/233

416/240

Brodix BP BR7 BS 285 12 Deg I-50 E-55 Alum

285/-

2.25/1.58

161/87

236/140

298/185

351/222

389/240

402/250

407/256

418/257

Brodix BP BR7 BS 300 12 Deg I-50 E-55 Alum

300/-

2.25/1.58

159/87

241/140

296/185

357/222

397/240

421/250

436/256

437/257

CID BELS Ported BES Power Adder Version Alum

N/A

2.25/1.625
4.125

124/92

217/146

295/200

352/245

375/271

409/286

434/298

440/305

451/310

Higgins Port by Darin Morgan 3.0 Alum

N/A

2.16/1.60

N/A

147/108

215/144

277/171

329/200

360/235

370/242

376/248

381/251

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Higgins Port by Darin Morgan 2.8 MCSA Small Bore Alum

N/A

2.15/1.60

N/A

151/95

228/135

286/170

337/208

343/227

353/237

367/244

370/244

Higgins Port by Darin Morgan 3.2 MCSA Alum

N/A

2.20/1.60

N/A

160/100

230/142

293/170

341/220

372/232

376/240

389/252

390/252

Higgins Port by Darin Morgan 3.3 MCSA Alum

N/A

2.23/1.58

N/A

138/107

215/149

281/204

339/226

375/235

392/241

401/245

419/248

Dart GM High Tech Performance Magazine Alum

N/A

2.02/1.60

N/A

66/50

131/96

195/138

232/174

267/196

261/204

Dart PRO1 LS1 205 Out of Box Alum

205/-

2.02/1.60

N/A

70/-

127/-

182/-

231/-

265/-

279/-

266/-

Dart PRO1 LS1 205 Out of Box Alum

205/-

2.02/1.60

N/A

148/108

194/164

246/207

281/231

294/241

278/-

Dart PRO1 LS1 205 Alum

205/85

2.02/1.60
4.00

156/109

215/154

258/187

290/205

Dart PRO1 LS1 225 Out of Box Alum

225/-

2.05/1.60

N/A

66/60

129/104

186/144

237/181

274/195

294/204

301/209

Dart PRO1 LS1 225 Alum

225/85

2.05/1.60
4.00

144/109

202/154

254/187

290/205

313/214

Dart PRO1 LS1 225 Bret Bauer Roll Clean Up Alum

230/-

2.05/1.60

N/A

144/112

204/151

260/193

297/214

312/225

320/232

Dart PRO1 LS1 225 Clean Up Alum

N/A

2.05/1.60
4.00
No Pipe

N/A

149/112

205/153

261/190

293/218

319/229

334/238

Dart CNC Out of Box Alum

248/-

2.055/1.60
4.03
No Pipe

N/A

70/53

146/105

210/146

253/184

295/213

318/227

314/232

315/236

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart PRO1 LS CNC 250 Alum

250/-

2.08/1.60

144/114

214/157

264/192

305/219

344/240

Dart PRO1 LS1 CNC 250 HRM Alum

249/94

2.08/1.60
4.03

70/54

144/110

216/157

265/196

304/225

318/235

317/240

Dart PRO1 LS1 Ported TEA Alum

240/90

2.08/-
4.00

N/A

70/53

144/118

213/178

271/233

309/261

336/275

Dart PRO1 LS1 Ported TEA Alum

240/90

2.10/-
4.155

N/A

69/53

147/122

221/210

278/265

325/292

354/301

358/306

Dart PRO1 LS CNC 280 Alum

280/-

2.165/1.60

163/128

233/171

283/204

321/235

343/244

371/249

Dart PRO1 LS 12 Deg CNC 285 Alum

285/-

2.20/1.625

162/118

233/164

293/208

334/230

361/244

380/252

381/263

Dart PRO1 LS 10 Deg CNC 368 Alum

368/-

2.30/1.60

167/117

252/163

320/204

378/241

419/267

437/288

446/304

452/311

456/316

Dart 10 Deg Ported BES Alum

N/A

2.25/1.625
4.125

139/96

210/132

291/175

367/216

406/252

427/278

438/291

454/301

458/310

Edelbrock GM High Tech Performance Magazine Alum

N/A

2.02/1.57

N/A

65/56

141/105

198/152

274/191

280/207

303/217

Edelbrock/ Lingenfelter 61969 LS1 SF600 Alum

202/83

2.02/1.57
3.90
No Pipe

141/115

200/162

245/196

282/209

300/217

Edelbrock/ Lingenfelter 61899 SF1020 Alum

230/78

2.10/1.60
4.00

147/109

211/161

260/193

298/214

321/224

316/227

Edelbrock/ Lingenfelter (LPE) HRM Alum

234/84

2.10/1.60
4.03

63/53

129/110

191/160

245/196

284/213

318/222

305/227

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock RPM XT LS1/LS2/LS6 61949 Semi-CNC SF1020 Alum

212/76

2.02/1.57

64/57

134/107

193/147

239/180

274/200

285/210

Edelbrock RPM XT LS1/LS2 61949 Semi-CNC Alum

214/78

2.02/1.57
3.90

137/111

199/153

239/188

276/204

286/212

Edelbrock LS1 4.8l / 5.3L Ported West Coast Alum

200/81

2.00/1.57
3.78

65/63

132/115

193/164

235/192

267/210

285/217

Edelbrock LS1 Ported West Coast Alum

215/88

2.055/1.60
4.03
Pipe

68/56

138/121

207/171

257/207

291/227

307/232

Edelbrock LS1 LS2 Ported West Coast Alum

245/88

2.08/1.57
4.03
Pipe

69/65

142/119

211/167

264/210

304/228

330/236

337/240

Edelbrock LS1 LS2 Ported West Coast HRM Alum

245/88

2.08/1.57
4.03

69/54

146/115

203/171

254/210

300/231

325/238

324/240

Edelbrock LS3 Victor Jr SF1020 Alum

280/85

2.20/1.60

131/107

197/147

260/184

315/216

354/233

381/241

390/245

390/247

388/249

Edelbrock LS-R Ported BES Alum

N/A

2.25/1.60

N/A

68/49

162/110

246/162

306/212

373/246

400/271

422/282

435/288

442/291

448/296

Flo-Tek LS3 SF600 Alum

276/92

2.16/1.59
4.00

168/111

229/149

289/173

318/191

343/206

373/218

HRD Ported All Pro LS1/LS6 Alum

N/A

2.00/1.55

N/A

155/115

219/166

259/204

295/219

LME LS3 Ported Alum

298/106

2.25/1.61
4.125
No Pipe

157/124

235/162

305/202

355/229

393/246

428/250

444/264

Mast Black Label Cathedral 252 Alum

252/99
3.780

2.04/1.57

63/54

122/105

182/142

236/201

279/221

312/232

330/240

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Mast Black Label Cathedral 245 Alum

245/106
4.00

2.165/1.60

72/53

139/102

216/140

274/195

320/223

355/237

358/245

Mast Black Label Cathedral 295 Alum

295/106
4.125

2.25/1.60

67/60

142/110

218/151

290/201

342/225

381/239

405/248

Mast Black Label LS3 240 Alum

240/99

2.08/1.57
3.890

69/51

131/100

198/145

253/193

302/217

336/217

347/239

Mast Black Label LS3 255 Alum

255/106

2.165/1.60
4.00

70/53

139/101

205/139

263/196

311/220

345/235

370/243

Mast Black Label LS3 295 Alum

295/106

2.25/1.60
4.125

81/60

148/109

228/151

296/200

346/225

379/239

397/248

Mast Black Label LS7 265 Alum

265/106

2.165/1.60
4.00

73/57

141/105

206/148

268/190

312/219

347/237

370/246

Mast Black Label LS7 265 Alum

265/106

2.165/1.60
4.065

N/A

82/61

151/119

230/188

292/219

332/236

352/251

365/260

369/263

371/-

Mast Black Label LS7 285 Alum

285/106

2.20/1.60
4.125

77/57

148/106

236/148

302/198

344/222

370/237

374/246

Mast Black Label LS7 305 Alum

305/106

2.25/1.60
4.125

68/56

142/108

219/152

292/200

346/228

382/244

405/254

Mast LS3 4.0 258 Alum

258/-

2.125/1.60
4.00
1 3/4" Pipe

N/A

72/56

143/108

207/154

262/202

305/231

341/248

350/259

Mast LS7 305 Alum

305/-

2.25/1.60

N/A

75/55

155/108

234/159

304/200

356/228

379/243

388/252

401/258

406/260

410/263

Mast Black Label Ported HRM Alum

270/93

2.20/1.60

74/54

141/106

229/154

299/200

341/232

371/248

365/261

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Mast Black Label Ported LS7 HRM Alum

274/84

2.20/1.61

76/65

163/118

245/171

307/212

350/229

379/243

395/249

Patriot LS1 Stage 2 Alum

N/A

2.055/1.57
3.90

N/A

72/66

151/125

201/161

250/198

292/221

321/230

PRC LS3/L92 13 Deg Ported

250/-

2.165/1.60

60-68

154/117

221/170

281/205

325/225

354/235

361/243

PRC LS3/L92 13 Deg Ported

260/-

2.185/1.60

60-68

157/117

224/170

279/205

329/225

360/235

380/243

PRC LS7 CNC

265/-

2.185/1.60

N/A

169/118

246/176

304/208

348/221

380/230

388/240

PRC LS Ported

237/85

2.10/1.60
4.30
No Pipe

66/57

147/117

225/170

284/206

325/227

334/235

ProComp LS Alum

N/A

2.00/1.55

N/A

62/49

128/97

192/136

225/165

248/181

270/194

ProComp LS1 HRM Alum

219/79

2.055/1.60
4.03

72/57

148/113

203/155

261/195

301/213

321/219

306/224

ProComp LS3 CNC HRM Alum

279/94

2.20/1.60

62/53

140/116

206/161

260/194

317/225

350/232

350/244

ProComp LS3 CNC Alum

N/A

2.18/1.60
-
1 7/8 Pipe

82/57

171/114

242/169

281/213

321/240

364/256

382/264

371/269

ProComp LS3 Ported Dr Js Performance HRM Alum

279/94

2.20/1.60

65/54

141/118

211/163

270/196

321/225

357/239

359/246

ProComp LS7 CNC HRM Alum

265/84

2.20/1.61

74/52

158/109

225/156

301/201

337/229

367/245

394/259

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro-Filer LSx Alum

215/-

2.20/1.60

308/-

Pro-Filer LSx Alum

215/-

2.02/1.60

141/104

202/154

249/192

280/212

301/227

305/231

313/235

Pro-Filer LSx Alum

235/-

2.08/-

341/-

Pro-Filer LSx CNC Smithberg Racing Saenz S-600 Alum

250/97

2.10/1.60
4.03
No Pipe

70/52

136/85

194/122

252/161

291/201

323/227

342/240

Pro-Filer LSx CNC Smithberg Racing Alum

250/97

2.10/1.60
4.03
No Pipe

68/52

150/85

208/122

262/161

312/201

338/227

349/240

ProMaxx Shocker 227 Alum

227/70

2.02/1.57

N/A

74/65

149/121

212/159

259/192

284/219

300/229

ProMaxx Shocker 227 208 Alum

227/70

2.08/1.60

N/A

75/66

147/124

209/164

255/206

297/229

320/236

RHS Pro Elite CNC Gen III

210/97

2.04/1.57

74/57

152/106

219/150

266/190

301/204

320/211

RHS Pro Elite CNC Gen III

225/97

2.04/1.57

71/57

153/114

214/163

276/204

308/222

328/231

320/236

RHS Pro Elite CNC LS3 11 Deg

263/-

2.165/1.60

80/60

165/117

242/157

294/188

333/212

360/225

372/235

365/243

RHS 291

291/95

2.20/1.615

75/53

157/104

238/149

282/188

324/215

363/229

389/237

RHS LS7 CNC Competition Components

N/A

2.20/1.615

N/A

80/54

149/99

223/136

297/176

344/211

382/236

411/245

392/255

396/261

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

RHS Ported Frankenstein Engine Dynamics 269 SF600 Alum

269.5/-

2.155/1.60
4.07
No Pipe

N/A

163/117

239/160

295/208

341/229

377/243

392/245

RHS Ported Frankenstein Engine Dynamics 289 SF600 Alum

289/-

2.20/1.60
4.125
No Pipe

N/A

158/117

245/170

306/214

357/234

388/245

410/251

RHS Ported Frankenstein Engine Dynamics 306 SF600 Alum

306/-

2.25/1.60
4.125
No Pipe

N/A

160/-

244/-

310/-

365/-

393/-

411/-

420/-
@.750

Texas Speed 237 HRM Alum

238/85

2.10/1.60
4.03

72/59

149/115

226/176

281/217

317/234

336/242

351/244

Texas Speed 285 CNC PRC HRM Alum

285/85

2.25/1.61

75/66

167/119

248/179

311/211

353/224

386/235

403/246

Trick Flow 205-LS1 SF600 Alum

205/-

2.00/1.575

299/237

Trick Flow 215-LS1 TRE SF1020 Alum

N/A

2.04/1.57

N/A

70/44

130/100

192/162

248/198

282/210

286/214

284/-

Trick Flow 215-LS1 CNC TRE SF1020 Alum

N/A

2.04/1.57

N/A

80/47

139/105

208/167

262/203

290/219

308/230

318/-

Trick Flow 215-LS1 Meaux Racing Out of Box CNC TRE SF600 Alum

N/A

2.04/1.57
4.03
No Pipe

N/A

118/104

193/159

252/194

296/211

292/219

293/224

293/226

Trick Flow 215-LS1 CNC SF600 Alum

215/80

2.04/1.575
3.90
1 7/8" Pipe

68/55

142/115

215/185

260/230

300/251

320/259

Trick Flow 215-LS1 Ported TEA Alum

215/80

2.05/1.60
3.90
1 7/8" Pipe

66/54

138/118

218/187

272/231

308/252

324/262

Trick Flow 220-LS1 SF600 Alum

220/80

2.04/1.575
4.03
1 7/8" Pipe

305/233

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow 220-LS1 Alum

N/A

2.04/1.575
3.903

N/A

67/52

139/114

220/174

269/210

301/232

310/237

Trick Flow 220-LS2 SF600 Alum

220/-

2.055/1.575
4.03
1 7/8" Pipe

67/47

133/104

211/167

261/202

292/222

305/233

Trick Flow 225-LS2 CNC SF600 Alum

225/80

2.055/1.575

68/55

142/115

220/185

279/230

316/251

338/259

Trick Flow 225-LS2 CNC Out of Box Alum

N/A

2.055/1.575

N/A

69/56

148/113

219/175

267/217

310/229

328/239

Trick Flow 225-LS2 Ported TEA Alum

225/80

2.055/1.60

67/54

141/118

223/187

279/231

316/252

335/262

Trick Flow 225-LS Ported TEA Alum

225/80

2.055/1.60
4.03
1 7/8" Pipe

71/61

144/120

222/187

279/233

316/260

336/274

Trick Flow 230 Advanced Induction SF600 Alum

230/-

2.055/1.575
4.00
1 7/8" Pipe

N/A

69/55

146/108

214/155

274/203

313/223

334/244

338/248

Trick Flow 235-LS2 Ported TEA Alum

235/80

2.08/1.60
4.125
1 7/8" Pipe

68/53

146/124

235/199

293/244

329/265

344/276

Trick Flow 245-LS2 Ported TEA Alum

245/85

2.10/1.60
4.185
1 7/8" Pipe

69/56

146/130

237/201

294/249

336/269

353/276

Trick Flow 245-LS2 Ported TEA Nitrous Exh Alum

245/85

2.10/1.60
4.185
1 7/8" Pipe

69/55

146/122

237/199

294/250

336/277

353/290

Trick Flow 245-LS Ported TEA Out of Box Meaux Racing SF600 Alum

N/A

2.10/1.60
4.125
No Pipe

N/A

138/111

223/162

280/203

314/223

335/230

318/234

326/238

Trick Flow 245-LS Ported TEA Short Turn Ported Meaux Racing SF600 Alum

N/A

2.10/1.60
4.125
No Pipe

N/A

138/111

223/163

282/205

316/227

341/235

339/240

334/242

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow 265-LS2 Ported TEA Alum

265/85

2.10/1.60
4.155
2 Pipe

59/58

128/129

210/189

281/233

340/256

352/267

368/272

377/274

382/277

388/279

Trick Flow 265-LS2 Ported TEA Nitrous Exh Alum

265/85

2.10/1.60
4.155
2 Pipe

59/55

128/122

210/199

281/250

340/277

352/290

368/298

377/303

382/305

388/306

Trick Flow 235-LSX GenX CNC SF600 Alum

235/80

2.08/1.60
4.125
1 7/8" Pipe

65/55

144/124

229/196

287/242

323/260

340/270

Trick Flow 235 CNC HRM Alum

234/80

2.08/1.60
4.03

67/57

144/113

221/172

272/213

309/230

333/240

315/244

Trick Flow 255 GenX 12 Deg Alum

255/87

2.165/1.60
4.065
1 7/8" Pipe

71/59

146/113

231/171

294/215

334/240

363/252

382/258

Trick Flow 255-LS3 Ported TEA SF600 Alum

255/87

2.165/1.60
4.06
1.875 Pipe

71/59

140/117

225/168

288/213

331/236

361/247

373/254

Trick Flow 260-LS7 Ported TEA Alum

260/87

2.20/1.60
4.125
2" Pipe

71/58

148/113

233/168

296/212

340/237

375/249

393/254

Trick Flow Ported Greg Good Alum

286/-

2.25/1.615

N/A

153/116

231/161

308/206

360/238

401/258

414/266

BMP LS1 15 Deg SF600 Alum

235/87

2.08/1.60
-
No Pipe

117/90

180/128

243/156

291/180

294/180

282/186

288/189

BMP LS1 15 Deg CNC SF600 Alum

255/87

2.08/1.60
-
No Pipe

137/110

201/157

260/192

296/215

313/230

324/238

338/243

BMP LS7 12 Deg CNC SF600 Alum

296/112

2.25/1.625
-
No Pipe

130/92

205/131

265/167

325/190

365/212

379/231

397/249

World Warhawk LS1X Alum

235/80

2.08/1.60

64/72

300/219

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

World Warhawk LS1X Alum

235/80

2.08/1.60

N/A

65/63

137/119

202/172

247/194

280/206

304/211

World Warhawk LS1 15 Deg SF600 Alum

235/87

2.08/1.60
-
No Pipe

64/72

72/63

146/118

209/155

254/185

282/204

304/215

313/221

321/223

World Warhawk LS1 15 Deg Kuntz CNC SF600 Alum

255/90

2.10/1.60
-
No Pipe

67/62

137/123

208/169

268/208

307/233

332/246

345/253

347/256

World Warhawk 255 CNC HRM Alum

255/87

2.10/1.60
4.03

63/56

137/115

200/165

260/198

297/214

313/224

328/233

World Warhawk 12 Deg SF600 Alum

285/106

2.20/1.60

64/72

58/35

123/66

194/111

256/148

304/175

333/193

354/203

335/211

World Warhawk 12 Deg Kuntz CNC SF600 Alum

296/110

2.20/1.60
-
No Pipe

76/55

178/108

241/160

309/198

357/225

387/249

396/264

403/274

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy LT1

170/62

1.94/1.50

187/139

190/145

Chevy LT1

170/62

1.94/1.50

60/46

120/94

171/122

197/140

207/154

201/156

Chevy LT1 Night Train

N/A

1.94/-

N/A

56/-

106/-

164/-

205/-

210/-

209/-

Chevy LT1 NPS

N/A

1.94/1.50
4.016
No Pipe

N/A

61/50

119/97

170/126

203/148

209/155

208/158

Chevy LT1 '94 Kendrick Auto

N/A

1.94/1.50

N/A

61/48

114/88

163/117

187/135

190/144

Chevy LT1 '94 Ported Kendrick Auto

N/A

1.94/1.50

N/A

69/50

139/101

181/130

223/159

247/178

Chevy LT1 290 Weingartner Racing Iron

N/A

1.94/1.50
4.125
No Pipe

N/A

73/52

142/106

205/138

237/152

236/157

239/201

Chevy LT1 372 Alum CHP

170/62

1.94/1.50
-
No Pipe

72/52

129/100

180/130

213/142

214/149

215/154

Chevy LT1 372 Alum CHP

170/62

1.94/1.50
-
Pipe

72/53

129/101

180/136

213/155

214/165

215/171

Chevy LT1 374 Ported Alum

N/A

2.00/1.55

N/A

65/48

130/89

184/121

209/148

227/158

240/163

Chevy LT1 374 Ported Smithberg Racing Alum

190/75

2.00/1.55

285/-

295/-

Chevy LT1 561 Night Train Alum

N/A

1.94/-

N/A

58/-

115/-

170/-

213/-

221/-

218/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy LT1 561 TriPinTaZ Alum

N/A

1.94/1.50

N/A

63/46

120/93

170/121

198/142

201/150

202/154

Chevy LT1 561 Ported Smithberg Racing Alum

190/80

2.00/1.56
4.03
No Pipe

69/50

140/109

199/139

2339/164

273/183

283/196

Chevy LT1 643 TriPinTaZ Alum

N/A

1.94/1.50

N/A

67/47

121/90

170/120

205/139

206/147

205/150

Chevy LT1 643 '96 CHW Alum

172/65

1.94/1.50

62/52

125/100

175/130

209/152

230/161

223/173

223/179

Chevy LT1 643 '96 Ported CHW Alum

188/70

2.02/1.50

70/64

144/112

199/138

237/155

262/164

269/178

265/185

Chevy LT1 643 Ported BES Alum

N/A

1.94/1.50

N/A

67/52

136/110

193/150

230/175

262/192

267/200

261/207

259/210

Chevy LT1 '14 + (Gen V) Ported BES Alum

N/A

2.124/1.59

N/A

61/53

137/107

219/147

282/179

319/209

343/225

344/238

355/244

369/245

378/345

Chevy LT1 Ported Brian Alum

N/A

2.00/1.56

66/48

129/93

183/130

229/168

262/189

265/192

Chevy LT1 Ported CDN Performance Stage 2 SF600 Alum

N/A

2.02/1.60

N/A

76/79

150/147

196/183

227/201

256/213

274/220

Chevy LT1 Ported TEA Stage 2 Alum

N/A

2.00/1.56

N/A

69/56

140/119

200/165

244/198

275/220

279/237

Chevy LT1 Ported TEA Stage 3 Alum

N/A

2.02/1.60

N/A

72/56

148/117

218/161

261/204

289/233

294/252

294/262

Chevy LT1 Ported ET Performance Alum

207/-

2.00/1.55
4.03

66/49

135/101

195/142

235/169

260/186

263/200

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy LT1 Ported No Rush Alum

N/A

2.00/1.55
-
No Pipe

N/A

71/60

142/109

193/148

237/179

262/193

271/198

275/202

Chevy LT1 Ported No Rush Alum

N/A

2.00/1.55
-
Pipe

N/A

71/62

142/114

193/158

237/191

262/206

271/216

275/219

Chevy LT1 Ported 190 Advanced Induction SF600 Alum

190/-

2.00/1.55
4.03
No Pipe

N/A

70/56

143/113

197/149

244/177

269/189

275/195

276/200

Chevy LT1 Ported 200 Advanced Induction SF600 Alum

200/-

2.00/1.56
4.03
No Pipe

52-56

69/65

148/116

205/153

247/179

275/190

288/196

290/201

Chevy LT1 Kyle Ported Blackstone Alum

N/A

2.02/1.60
-
Pipe

N/A

74/64

147/118

203/167

249/197

269/214

284/225

287/232

Chevy LT1 Ported GTP Stage 2 Alum

N/A

2.00/1.56

N/A

70/51

122/119

186/145

222/176

254/204

266/217

Chevy LT1 Ported GTP Stage 2 Flowed Alum

188/-

2.00/1.56

135/106

184/140

228/164

258/182

267/192

263/195

Chevy LT1 Ported Meaux Racing SF600 Alum

N/A

2.055/1.60
4.00
No Pipe

N/A

138/115

193/154

236/182

261/193

260/201

262/206

264/-

Chevy LT1 Ported LME Alum

330/118

2.125/1.59
4.125
No Pipe

61.5

75/63

146/127

226/171

292/216

330/254

346/265

359/271

Chevy LT4 '96 Kendrick Auto

N/A

2.00/1.55

N/A

69/53

135/99

184/125

218/143

241/158

Chevy LT4 '96 Ported Kendrick Auto

N/A

2.00/1.55

N/A

82/58

149/104

193/144

232/173

261/189

Chevy LT4 Alum

195/-

2.00/1.55

156/121

208/149

243/177

265/190

257/196

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy LT4 Alum CHP

195/-

2.00/1.55
-
No Pipe

78/67

147/109

197/133

230/159

250/172

243/177

Chevy LT4 Alum CHP

195/-

2.00/1.55
-
Pipe

78/67

147/114

197/141

230/167

250/180

243/185

Chevy LT4 Ported ET Performance Alum

N/A

2.00/1.55
4.03

71/47

134/97

192/132

238/165

268/185

277/195

Chevy LT4 Ported No Rush Alum

N/A

2.00/1.55
-
No Pipe

N/A

72/62

142/108

195/151

239/177

270/191

281/198

288/201

290/204

Chevy LT4 Ported PBR Alum

N/A

2.05/1.60

N/A

167/126

214/166

258/193

290/210

310/218

317/226

Chevy LT4 Ported 21x Advanced Induction SF600 Alum

52-56

2.00/1.56
4.03
No Pipe

N/A

71/61

144/107

202/145

250/175

281/194

296/203

300/209

Chevy LT4 Ported LME Alum

330/118

2.125/1.60
4.125
No Pipe

65.5

75/60

146/127

217/182

286/235

323/249

354/257

372/260

AFR LT1 180 Street Old SF600 Alum

180/64

2.02/1.60
4.06
1 3/4" Pipe

56-74

129/108

195/156

240/178

255/190

260/194

AFR LT1 180 Street SF600 Alum

180/64

2.02/1.60
4.06
1 3/4" Pipe

56-74

138/110

198/158

240/190

260/207

AFR LT1 180 Comp Old SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

144/102

206/152

245/190

260/204

268/211

AFR LT1 180 Comp SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

142/115

203/165

247/200

270/217

AFR LT1 190 Street SF600 Alum

190/64

2.02/1.60

56-74

129/108

195/156

240/178

260/190

262/194

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR LT1/LT4 195 Street Old SF600 Alum

195/64

2.02/1.60
4.06
1 3/4" Pipe

56-74

132/108

198/156

240/178

260/190

262/194

AFR LT1/LT4 195 Street SF600 Alum

195/64

2.02/1.60
4.06
1 3/4" Pipe

56-74

137/110

196/156

243/190

274/207

AFR LT1/LT4 195 Comp Old SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

135/110

201/157

249/180

275/195

280/208

AFR LT1/LT4 195 Comp SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

140/115

202/165

248/200

280/217

300/225

AFR LT4 195 Street SF600 Alum

195/64

2.05/1.60
4.06
1 3/4" Pipe

55/65

146/119

201/166

247/197

275/213

AFR LT4 195 Comp SF600 Alum

195/64

2.08/1.60
4.06
1 3/4" Pipe

55/65

151/125

211/172

260/207

293/224

308/233

AFR LT1/LT4 203 Race SF600 Alum

203/80

2.08/1.60
4.125
1 7/8" Pipe

129/112

188/145

234/185

263/205

275/215

272/220

AFR LT1/LT4 210 Street SF600 Alum

210/80

2.08/1.60
4.125
1 7/8" Pipe

139/110

199/158

249/192

279/210

295/220

301/224

AFR LT1/LT4 210 Race Old SF600 Alum

210/80

2.08/1.60
4.125
1 7/8" Pipe

135/112

197/145

245/185

273/205

282/215

285/220

AFR LT1/LT4 210 Comp SF600 Alum

210/80

2.08/1.60
4.125
1 7/8" Pipe

147/120

206/166

257/214

290/225

308/235

312/240

AFR LT4 210 Race V2 Alum

210/80

2.08/1.60
4.06
1 3/4" Pipe

65-75

145/110

199/158

255/192

292/210

309/220

AFR LT4 210 Comp V2 Alum

210/80

2.08/1.60
4.06
1 3/4" Pipe

65-75

147/120

201/166

257/214

296/225

318/235

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR LT4 Eliminator #10331 NPS Alum

N/A

2.05/1.60
4.0157
No Pipe

68/58

145/112

199/158

242/186

269/198

266/207

262/212

AFR LT4 Ported Race Prep Alum

213/65

2.08/1.60

N/A

75/52

135/104

194/148

242/181

278/201

315/219

AFR LT4 220 Race SF600 Alum

220/80

2.08/1.60
4.125
1 7/8" Pipe

132/112

190/145

248/185

280/205

286/215

292/220

AFR LT4 227 Race SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

135/112

192/145

250/185

288/205

292/215

295/220

AFR LT4 227 Street SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

148/114

210/162

259/204

292/220

305/229

AFR LT4 227 Comp SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

N/A

151/120

219/167

266/214

298/230

318/238

327/243

AFR LT4 227 Street 60/40 V2 SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

65-75

148/114

210/162

261/204

296/220

312/229

318/237

AFR LT4 227 Comp 60/40 V2 SF600 Alum

227/80

2.10/1.60
4.125
1 7/8" Pipe

65-75

152/120

212/167

265/214

300/230

319/238

327/243

AFR LT4 Ported Race Prep Alum

213/65

N/A

75/52

135/104

194/148

242/181

278/201

315/219

AFR LT4 Ported Meaux Racing I-50 E-50 Alum

N/A

2.10/1.60
4.00
No Pipe

N/A

136/99

197/166

254/196

292/216

315/221

319/226

327/226

AFR LT4 Ported Meaux Racing I-50 E-50 Alum

N/A

2.10/1.60
-
No Pipe

N/A

136/99

197/166

254/196

292/216

315/221

324/232

335/234

Dart 180 LT1/LT4 Alum

180/-

2.02/1.60
-
No Pipe

139/114

193/145

231/164

249/172

253/174

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart 180 LT1 Advanced Induction SF600

189.8/75

2.02/1.60
4.03
No Pipe

N/A

61/48

124/94

176/124

222/153

251/171

264/184

256/192

Dart 180 LT1 Ported Advanced Induction SF600

201/-

2.02/1.60
4.03
No Pipe

69/57

141/104

197/141

241/168

277/187

290/200

290/205

Dart 200 LT1/LT4 Alum

200/-

2.02/1.60
-
No Pipe

129/114

185/145

229/164

261/172

263/174

Dart 215 LT1/LT4 Alum

215/-

2.05/1.60
-
No Pipe

127/114

178/145

216/164

249/172

268/174

271/-

Edelbrock Performer LT1 61909 SF1020 Alum

170/60

1.94/1.55
-
No Pipe

61/52

117/100

174/140

220/167

242/184

232/192

Edelbrock Performer LT1 61909 Out of Box SF1020 GMHPMAlum

175.5./69

1.94/1.55
4.03

61/53

121/100

178/133

220/155

232/168

228/172

Edelbrock Performer RPM Xtreme LT4 61939 Semi-CNC SF1020 Alum

195/75

2.02/1.57
4.00

65/54

119/107

173/145

255/181

267/187

270/190

LME LT1/LT4 Alum

N/A

2.18/1.63
4.125
No Pipe

163/113

234/182

292/244

345/283

368/299

384/309

403/311

Mast Black Label LT1/LT4 292 Alum

292/111

2.165/1.60
4.065

70/50

140/102

216/145

280/193

330/209

341/220

355/224

Mast Black Label LT1/Lt4 313 Alum

313/122

2.25/1.60
4.125

80/66

157/117

238/155

307/195

353/232

375/245

391/250

Patriot Alum

195/70

2.02/1.60
4.00

Pro Comp Alum

190/-

2.02/1.60

58/52

113/98

159/133

200/162

228/180

244/189

248/192

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow GenX LT1 21 Deg SF600

185/-

2.02/1.60
4.03

65/54

138/117

202/162

243/189

270/197

273/209

Trick Flow GenX LT1 21 Deg SF600 Alum

185/67

2.02/1.60
4.03
1 3/4" Pipe

65/48

132/111

195/151

236/182

258/198

260/206

Trick Flow LT1 SF600 Alum

195/72

2.02/1.60
4.03
1 3/4" Pipe

51/58

136/98

191/136

230/163

253/177

254/190

Trick Flow LT1 Ported Lloyd Elliot Alum

205/76

2.02/1.60

140/108

200/144

245/176

274/190

282/204

Trick Flow LT1 Ported Lloyd Elliot Alum

208/-

2.05/1.60

142/109

199/142

243/178

279/204

292/217

Trick Flow LT1 Ported 200 Advanced Induction SF600 Alum

200/78

2.08/1.60
4.03
No Pipe

N/A

70/61

144/107

198/145

246/175

274/194

278/203

279/209

Trick Flow LT1 Ported 215 Advanced Induction SF600 Alum

215/78

2.08/1.60
4.03
No Pipe

N/A

72/65

146/111

206/149

253/177

285/196

300/205

304/210

Trick Flow LT1 Ported TEA Alum

205/66

2.02/1.60
4.03
Pipe 1 3/4

68/54

143/117

217/177

263/219

290/243

294/257

Trick Flow LT1 Ported TEA Alum

220/66

2.08/1.60
4.03
Pipe 2"

N/A

69/52

144/119

207/182

255/224

291/247

310/257

316/262

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chevy Large Valve Rockville Speed

N/A

2.02/1.60

N/A

65/51

133/102

163/131

174/139

178/141

Chevy Ported Large Valve Rockville Speed

N/A

2.02/1.60

N/A

66/52

135/112

175/152

197/183

209/184

214/-

Chevy 90 Deg LB4

N/A

1.94/1.50

N/A

165/119

Chevy 90 Deg L35 Sandman

N/A

1.94/1.50

N/A

60/-

100/-

143/-

172/-

189/-

194/-

201/-

Chevy 90 Deg L35 Dennis

N/A

1.94/1.50

N/A

60/-

100/-

143/-

172/-

189/-

199/-

Chevy 90 Deg L35 Ported Dennis

N/A

1.94/1.60

N/A

60/62

123/121

170/172

207/188

230/195

247/199

Chevy 90 Deg L35 Shan Mild Ported

N/A

2.02/1.60

N/A

64/54

122/102

164/139

197/166

217/181

218/185

219/188

Chevy 90 Deg Vortec

N/A

1.94/1.50
4.00

N/A

63/49

131/106

187/139

218/155

216/163

217/165

Chevy 90 Deg LF6 Vortec Ported

N/A

65/55

131/125

182/166

228/184

259/191

Chevy 359 / 523 18 Deg Hutter Alum

244/-

2.15/1.625

147/110

228/162

282/215

321/235

338/243

347/250

Brodix 90 Deg V6 -8 23 Deg Alum

194/-

2.08/1.60

134/110

191/139

230/155

240/161

Brodix 90 Deg V6 -10 23 Deg Alum

210/-

2.08/1.60

145/110

195/139

240/155

253/161

262/166

262/168

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix 90 Deg V6 18 Deg Ported Kelford Cams Alum

N/A

2.08/1.60

N/A

66/63

130/124

193/160

245/184

294/198

323/204

339/207

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

4 cyl Ported Alum

N/A

35.2mm/ 30.1mm

N/A

250/-

270/175

4 cyl Ported Alum

N/A

35.2mm/ 31.1mm

N/A

250/-

270/207

2.0L LSJ M2 Race Systems Alum

N/A

35.2mm/ 30.1mm
3.575

N/A

155/127

192/139

224/144

243/146

253/148

258/149

261/149

2.0L LSJ CNC M2 Race Systems Alum

N/A

36.1mm/ 31.1mm
3.575

86/86

126/126

166/151

201/173

235/187

263/194

278/199

292/203

298/206

303/208

2.2 Patriot CNC Stage II Alum

173/75

1.42/1.225

81/7

121/109

160/138

190/160

217/174

238/181

264/187

266/189

Ported Shaver SF1020 Alum

181/78

35.2mm/ 30.1mm

N/A

113/116

148/151

181/176

214/190

242/199

258/204

268/206

-/208

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chevy 156 Peanut Iron CHP

195/-

2.06/1.72
-
No Pipe

115

54/35

123/84

184/117

222/141

226/156

226/160

227/162

Chevy 236 Peanut Iron CHP

208/112

2.06/1.72
-
No Pipe

120

56/44

125/87

183/111

215/130

233/144

235/150

235/155

Chevy 236 Peanut Iron CCM

208/112

2.06/1.72
-
Pipe

120

56/44

125/90

183/117

215/139

233/158

235/166

235/172

Chevy 360 Small Oval Ported BH Performance Iron

N/A

N/A
-
No Pipe

N/A

75/68

160/111

202/143

230/165

247/178

256/192

255/199

Chevy Vortec L29 '97-99 Iron

230/-

2.070/1.72

63/49

121/91

165/120

198/133

226/140

242/142

Chevy Oval Port Iron

256/114

2.06/1.72

N/A

272/189

Chevy 049 Oval Port Iron

253/115

2.06/1.72

N/A

268-260/177

Chevy 049 Oval Port SF600 CHP Iron

253/116

2.06/1.72
-
Pipe

122

59/52

124/98

188/128

232/152

250/177

264/187

264/192

265/192

Chevy 049 Oval Ported BH Performance Iron

N/A

2.19/1.88
-
No Pipe

N/A

68-77/62

146-158/112

215-221/149

265-260/167

301-280/181

303-293/194

296-294/201

Chevy 049 Oval Ported BH Performance Iron

N/A

2.19/1.88
-
Pipe

N/A

68-77/67

146-158/147

215-221/193

265-260/227

301-280/245

303-293/249

296-294/251

Chevy 049 Oval Gamrace Iron

N/A

2.07/1.72
4.30
No Pipe

N/A

175/128

218/140

236/149

251/153

255/154

Chevy 049 Oval Ported Stage 1 Gamrace Iron

260/-

2.19/1.88
4.30
No Pipe

N/A

205/142

265/169

302/192

302/209

297/225

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chevy 049 Oval Ported Dr Js Performance Iron

N/A

2.25/1.94
4.50
2" Pipe

N/A

76/68

152/134

228/162

271/214

315/242

341/261

348/289

Chevy 049 Oval Ported sheetmetal Iron

N/A

2.19/1.88
4.25
No Pipe

N/A

142/110

204/138

249/166

288/190

310/200

Chevy 063 Oval Weingartner Racing Iron

N/A

2.06/1.74
4.31
No Pipe

N/A

65-59/45

114-106/86

178-173/115

234-215/137

248-229/153

260-247/166

273-255/175

270-256/180

Chevy 063 '69 Oval Straub Technologies Iron

N/A

2.07/1.72
4.50

N/A

117/97

180/123

228/145

248/164

265/176

270/183

Chevy 063 '69 Oval Straub Technologies Iron

N/A

2.19/1.88
4.50

N/A

138-132/96

202-198/123

243-239/153

272-271/175

295-291/196

293-290/215

Chevy 063 '69 Oval Straub Technologies Ported Foxwell Motorsports Iron

N/A

2.19/1.80
4.50
2 1/4" Pipe

N/A

156-153/116

216-215/150

265-260/174

307-290/200

333-305/220

327-310/242

Chevy 3931063 Oval Dr Js Performance Iron

N/A

2.06/1.74
-
Pipe

N/A

65/55

117/97

180/123

228/145

248/164

265/176

270/183

Chevy 3931063 Oval Ported Dr Js Performance Iron

N/A

2.19/1.88
-
Pipe

N/A

75/74

150/134

219/162

266/206

304/232

321/249

327/260

Chevy 088 Ported Speier Racing Heads SF600 Iron

N/A

2.30/1.88
4.50
No Pipe

N/A

156-157/132

232-229/163

286-278/188

328-314/207

363-335/220

380-353/231

382-365/240

385-371/248

387-377/251

Chevy 290 Oval Port Iron CHP

253/112

2.06/1.72
-
No Pipe

105

60/47

122/88

172/113

214/133

244/152

257/161

260/168

263/171

Chevy 290 Oval Port Iron CHP

253/112

2.06/1.72
-
Pipe

105

60/47

122/90

172/118

214/138

244/160

257/174

260/184

263/188

Chevy 290 Oval Port Ported Ron Miller SF120 Iron

N/A

2.19/1.88
4.50
No Pipe

98.2

151-152/130

215-162/157

263-259/191

288-275/215

312-293/240

326-291/243

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chevy 390 Oval NPS Stock Iron

N/A

2.065/1.72
4.25
No Pipe

N/A

69/46

116/89

180/114

216/136

236/155

248/171

260/180

Chevy 390 Oval Pace Performance Alum

290/110

2.25/1.88

110

71/58

138/119

193/145

233/168

272/189

299/202

318/210

327/230

Chevy 390 Oval SF600 Alum

290/110

2.25/1.88
4.50
1 7/8" Pipe

110

74/71

143/126

207/158

250/178

284/200

309/218

322/232

Chevy 390 Oval Ported SF600 Alum

N/A

2.25/1.88
4.50
1 7/8" Pipe

112

85/73

161/141

230/175

283/208

332/234

354/257

361/274

363/287

Chevy 392 / 399 Oval Alum

290/110

2.19/1.88

110

67/64

149/128

226/150

271/172

293/195

316/213

320/227

Chevy 702 Oval Port Iron CHP

253/-

2.06/1.72
-
Pipe

101

57/46

121/89

179/115

214/135

237/152

254/173

260/183

260/188

Chevy 702 Oval Weingartner Ported Pocket Iron

N/A

2.19/1.88
4.50

N/A

82/64

146/104

232/127

274/154

295/180

311/204

306/215

292/229

Chevy 702 Oval Ported I-33 E-33 Back Cut Weingartner Racing Brez

N/A

2.19/1.88
4.31
No Pipe

N/A

180/121

247/146

283/173

307/197

314/211

314/223

Chevy 772 Oval Short Runner Weingartner Racing

N/A

2.19/1.88
4.50
No Pipe

N/A

63/56

157/106

215/139

259/165

251/180

268/184

274/187

275/188

Chevy 781 Oval Mark-J-Vortecpro Iron

N/A

2.065/1.72
4.35
No Pipe

N/A

126/95

195-193/127

225-239/154

245-258/173

255-270/181

262-272/184

Chevy 781 Oval Bill Jones Iron

N/A

2.06/1.72
-
No Pipe

N/A

69/57

142/103

190/127

217/158

238/179

270/197

Chevy 781 Oval Mild Porting Bill Jones Iron

N/A

2.06/1.72
-
No Pipe

N/A

69/62

142/115

203/152

243/187

265/207

279/216

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chevy 781 Oval No Porting 11/32 stems Iron

N/A

2.19/1.88

N/A

141/109

208/143

265/175

295/203

302/226

Chevy 781 Oval Bowl Blend Iron

258/116

2.19/1.88
4.31
No Pipe

N/A

69/69

142/110

210/140

256/166

285/180

276/188

Chevy 781 Oval Bowl Blend Wolfplace FlowData Iron

N/A

2.19/1.88
4.53
No Pipe

N/A

69/56

158/102

217/135

254/161

263/186

274/209

272/219

Chevy 781 Oval Ported Iron

N/A

2.19/1.84

N/A

324/288

Chevy 781 Oval Dave Vandenburg Mild Port Bowl Blend Iron

N/A

2.25/1.88

N/A

73/61

140/108

211/139

273/165

305/186

315/202

301/216

Chevy 781 Oval Short Runner Weingartner Racing Iron

N/A

2.19/1.88
4.50
No Pipe

N/A

68/57

153/111

215/137

257/151

254/158

264/159

263/163

267/163

Chevy 781 Ported Dr Js Performance I-50 E-45 Iron

N/A

2.30/1.90
-
2" Pipe

N/A

66-63/68

148-143/132

228-225/161

294-291/212

335-333/240

354-348/259

363-352/268

372-358/274

375-364/277

381-370/279

Chevy 820 Weingartner Racing Brez

N/A

2.19/1.88
4.31
No Pipe

N/A

145/132

207/166

256/193

295/201

308/214

301/221

Chevy 820 Bowl Ported Weingartner Racing Brez

N/A

2.25/1.88
4.31
No Pipe

N/A

156/-

220/-

273/-

295/-

315/-

337/-

350/-

Chevy 3993820 Oval

253/114

113

71/52

145/105

227/144

260/176

279/190

Chevy 074 Ported Mike Stark Seanz 680 Alum

340/-

2.30/1.88
4.60

N/A

81/75

166/119

248/157

312/191

354/210

378/233

392/255

400/272

400/280

Chevy 188 Iron CHP

317/125

2.19/1.88
4.25
Pipe

118

68/45

129/90

188/131

233/170

259/188

291/195

313/200

-/202

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chevy 188 Iron CHP

317/125

2.19/1.88
4.25
No Pipe

118

68/45

129/88

188/128

233/154

259/172

291/177

313/181

Chevy 188 Young Performance Marine Iron

N/A

2.19/1.88
4.50
No Pipe

118

149/117

197/150

233/174

258/184

280/187

287/187

Chevy 188 Young Performance Marine Ported Iron

N/A

2.19/1.88
4.50
No Pipe

118

150/117

204/151

246/180

278/192

303/197

311/197

Chevy 188 Jim V right hand port Iron

N/A

2.19/1.88
-
No Pipe

N/A

148/101

213/135

250/162

287/176

317/182

328/186

Chevy 291 Rect. 3-angle VJ Meaux Racing SF600 Iron

N/A

2.19/1.88

N/A

136-134/114

200/153

248-239/171

281-261/184

302-278/192

316-287/196

Chevy 291 Rect. M Chips Iron

N/A

2.19/1.88

N/A

65/55

147/110

211/143

245/172

266/195

284/209

299/220

Chevy 291 Rect. Weingartner Racing Brez Iron

N/A

2.19/1.88
4.31
No Pipe

N/A

141/112

207/139

251/163

288/180

289/194

291/197

Chevy 291 Rect. Weingartner Racing Iron

N/A

2.19/1.72
4.50
No Pipe

N/A

67/54

137/104

205/132

248/156

287/174

319/182

323/187

Chevy 401 CHP

322/120

2.25/1.88
4.25
Pipe

118

70/53

143/116

200/142

236/179

275/204

310/227

330/244

340/254

Chevy 840 Rect. Weingartner Racing Brez

N/A

2.19/1.72
4.31
No Pipe

N/A

65/60

137/107

195/137

244/159

283/176

307/185

312/192

Chevy 990 Iron CHP

318/125

2.19/1.88
4.25
Pipe

118

69/53

125/103

183/140

233/176

264/198

292/204

-/207

Chevy 990 Meaux Racing Iron

N/A

2.19/1.88
4.28
Pipe

N/A

131-129/106

202-201/138

234-228/162

272-250/181

303-275/194

322-289/197

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chevy 990 Bowls Blended Josh Iron

N/A

2.25/1.88
-
No Pipe

N/A

72/59

143/113

215/139

261/165

290/186

306/204

323/213

333/216

Chevy 990 Rect. VJ Bowl Cutter I-33 E-33 Back Cut Weingartner Racing Brez

N/A

2.19/1.88
4.31
No Pipe

N/A

183/122

245/152

290/176

317/198

329/208

338/213

341/213

Chevy 920 Rect. Iron

N/A

2.19/1.88

118

Chevy Rect. Port

320-326/ 120

2.19/1.88

118

331/201

Chevy 410 Rect. Alum

300-315/ 110

2.19/1.88

118

Chevy 400 Rect. Alum

300-315/ 110

2.25/1.88

118

Chevy ZL-1 D-port

320/120

2.19/1.88

N/A

331/213

Chevy Alum D-port

320/120

2.19/1.88

N/A

284/206

310/226

328/238

Chevy 14011076 Ported BH Performance Alum

N/A

2.25/1.92
-
No Pipe

N/A

78/75

155/119

227/151

274/182

304/206

335/228

361/236

Chevy Bowtie Weingartner Racing Ported Brez

N/A

2.19/1.88
4.31
No Pipe

N/A

170/131

241/163

275/186

307/208

336/224

358/235

373/245

GM PS 2000 - Darin Morgan SF600 Alum

N/A

2.48/1.85
-
No Pipe

N/A

138/125

218/175

291/212

372/251

441/285

495/311

531/325

547/333

548/336

GM PS 2002 - Darin Morgan SF600 Alum

N/A

2.50/1.82
-
No Pipe

N/A

155/114

247/177

343/222

423/263

494/301

532/319

542/334

551/345

561/349

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

GM / DRCE PS Alum

N/A

2.515/-

N/A

144/-

251/-

336/-

410/-

475/-

530/-

545/-

575/-

580/-

GM / DRCE 1 PS 2004 - Darin Morgan SF600 Alum

N/A

2.50/1.80
-
No Pipe

N/A

143/110

250/167

340/210

422/252

487/299

531/323

555/336

571/342

585/348

GM / DRCE 2 Pro Stock Ported MBE Alum

487/-

2.54/1.80
4.52
No Pipe

N/A

152/117

244/162

329/211

411/263

474/306

512/327

538/340

550/346

562/347

565/349

GM / DRCE 3 - Ported Alum

N/A

2.55/1.83

N/A

149/119

246/176

350/223

429/267

500/307

544/331

569/344

584/354

600/360

GM / DRCE 3 - Darin Morgan SF600 Alum

N/A

2.55/1.83
-
No Pipe

N/A

147/95

252/168

343/216

429/260

500/295

550/316

573/333

583/343

595/350

GM / DRCE 3 - Darin Morgan SF600 Alum

N/A

2.55/-

N/A

154/-

258/-

345/-

425/-

494/-

553/-

587/-

598/-

602/-

605/-

GM / Pro Mod 5.2 BS - Darin Morgan SF600 Alum

N/A

2.60/1.95
-
No Pipe

N/A

182/160

267/222

351/286

419/338

492/358

543/367

585/371

607/371

606/374

AFR 265 Oval SF600 Alum

265/115

2.19/1.88
4.31
2 1/8" Pipe

119

165/135

244/169

297/219

324/249

332/272

AFR 265 Oval Partially Ported SF600 Alum

265/115

2.19/1.88
4.31
2 1/8" Pipe

112

154/127

218/164

278/200

323/230

347/255

AFR 265 Oval CNC Chamber Partially Ported SF600 Alum

265/115

2.19/1.88
4.31
2 1/8" Pipe

112

172/157

245/195

295/227

326/253

342/265

AFR 265 CNC Chamber Wolfplace FlowData Alum

265/-

2.19/1.88
4.53
No Pipe

N/A

76/64

168/144

252/196

307/232

339/248

351/254

AFR 288 Ported Straub Technologies Alum

288/-

2.25/1.8
4.31

114

160/114

232-230/149

289-285/197

331-319/241

355-343/272

362-353/289

367-363/298

369-367/302

371-368/304

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

AFR 290 Oval SF600 Alum

290/115

2.25/1.88
4.31
2 Pipe

121

170/157

241/190

294/232

332/260

361/278

374/292

AFR 290 Oval SF600 Alum

290/115

2.25/1.88
4.31
1 7/8" Pipe

112

170/138

240/199

294/239

332/268

361/283

374/298

AFR 290 Oval CNC Weingartner Racing Brez

N/A

2.25/1.88
4.31
No Pipe

N/A

79/67

167/141

242/212

298/242

328/267

356/274

370/279

AFR 290 Oval Alum

290/115

2.25/1.88
4.31
1 7/8" Pipe

113

170/135

240/190

294/234

332/265

361/280

374/295

AFR 300 Oval Alum

300/-

2.30/1.88
4.31
1 7/8" Pipe

113

165/135

240/190

296/234

340/265

378/280

388/295

AFR 305 SF600 Alum

305/-

2.19/1.88
4.60
2 1/8" Pipe

119

154/131

223/176

287/219

335/251

363/276

AFR 305 CNC Chambers SF600 Alum

305/-

2.19/1.88
4.60
2 1/8" Pipe

121

163/135

241/192

300/237

344/268

367/284

368/298

AFR 305 CNC Chambers Partially Ported SF600 Alum

305/-

2.19/1.88
4.31
2 1/8" Pipe

121

168/142

242/187

303/225

339/252

360/271

AFR 305 VJ Bowl Work Foxwell Motorsports Alum

N/A

2.25/1.88
4.50
2 1/4" Pipe

N/A

169-172/150

246-247/196

305-300/239

348-334/266

373-359/281

380-375/290

384-387/302

386-394/312

AFR 305 Ported Weingartner Racing Alum

325/-

2.25/1.88
4.31
No Pipe

119

69/64

141/122

225/163

288/203

327/238

358/266

377/281

384/291

395/296

400/300

AFR 315 CNC SF600 Alum

315/135

2.25/1.88
4.60
2 1/8" Pipe

121

169/146

249/184

312/238

353/271

380/296

386/310

387/315

AFR 315 Alum CHP

315/-

2.25/1.88
4.25
Pipe

N/A

76/62

162/133

232/199

282/256

321/284

348/290

368/293

370/300

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

AFR 315 CNC Wolfplace FlowData Alum

315/-

2.25/1.88
4.31
No Pipe

N/A

78/69

162/142

239/198

290/240

334/267

358/280

374/283

377/286

AFR 315 CNC Wolfplace FlowData Alum

315/-

2.25/1.88
4.53
No Pipe

N/A

78/69

164/142

247/198

309/240

350/267

375/280

383/283

381/286

AFR 325 SF600 Alum

325/132

2.30/1.88
4.60
2 1/8" Pipe

119

142/131

213/176

280/219

331/251

370/276

384/285

AFR 325 Weingartner Racing Brez Alum

N/A

2.30/1.88
4.31
No Pipe

N/A

81/63

166/137

236/182

293/226

340/258

358/274

377/280

383/282

386/282

AFR 325 Ported Weingartner Racing Alum

345/-

2.25/1.88
4.625
No Pipe

119

74/67

153/119

235/167

302/212

350/250

385/269

415/281

416/284

417/286

424/289

AFR 325 Enforcer Alum

325/140

2.25/1.88

122

156/138

228/189

286/226

326/254

342/271

355/282

364/290

367/298

AFR 335 CNC SF600 Alum

335/135

2.30/1.88
4.60
2 1/8" Pipe

121

164/144

240/197

304/257

352/285

385/311

404/319

410/325

AFR 335 CNC SF600 Out of Box Alum

335/-

2.30/1.88
4.60
No Pipe

N/A

170/133

249/178

313/230

362/259

396/268

405/273

AFR 335 CNC SF600 Alum

335/-

2.30/1.88
-
2 1/8" Pipe

121

164/142

240/193

304/244

352/278

385/310

404/321

410/327

AFR 335 Ported Foxwell Motorsports I-45 E-45 Alum

344/-

2.35/1.88

N/A

155-154/128

239-238/181

304-274/227

353-345/274

394-377/304

422-398/310

430-411/319

437-424/321

442-430/325

AFR 335 Enforcer SF600 Alum

335/140

2.25/1.88

122

140/119

207/172

265/211

296/239

336/249

355/255

AFR 335 Enforcer Bad Port Out of Box Alum

N/A

2.25/1.88

N/A

79/58

160/120

228/175

279/206

311/240

330/258

339/258

350/278

352/284

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

AFR 335 Enforcer Ported Bad Port Alum

355.3/158

2.30/1.88

N/A

84/64

170/129

243/182

310/217

356/255

393/281

406/299

408/305

409/308

409/309

AFR 345 SF600 Alum

345/-

2.30/1.88
4.60
2 1/8" Pipe

119

141/135

212/169

279/219

333/249

372/272

401/285

405/290

AFR 345 NPS Alum

N/A

2.30/1.88
4.25
No Pipe

N/A

75/57

137/116

209-208/176

271-277/221

319-327/243

345-364/253

357-388/261

368-398/264

AFR 351 Ported Straub Technologies Alum

351/-

2.375/1.85
4.60

117

152/126

230-236/200

300-307/260

354-350/294

400-385/306

431-413/316

446-429/324

450-441/334

451-449/341

AFR 357 CNC SF600 Alum

357/135

2.30/1.88
4.60
2 1/8" Pipe

121

167/144

242/197

307/257

354/285

393/311

415/319

425/325

AFR 377 CNC SF600 Alum

377/135

2.30/1.88
4.60
2 1/8" Pipe

121

176/148

260/205

328/263

382/302

415/316

427/330

434/340

437/345

AFR 385 CNC Alum

385/135

2.35/1.88
4.60
2.125" Pipe

121

176/149

256/205

327/267

386/302

421/322

444/334

452/344

456/350

AFR 385 Out of Box Alum

N/A

2.35/1.88
4.625
2.25" Pipe

N/A

161/139

230/210

299/273

357/299

400/309

427/315

438/319

AFR 385 3v Performance Bad Port Out of Box Alum

385/-

2.35/-

N/A

78/-

167/-

242/-

303/-

349/-

381/-

409/-

423/-

433/-

440/-

AFR 385 Out of Box Weingartner Racing Alum

N/A

2.345/1.88
4.625
2.125" Pipe

N/A

71-72/60

155-156/139

228/192

296-288/269

357-347/299

400-382/315

432-414/327

426-429/337

429-433/343

434-432/345

AFR 457 18 Deg CNC Alum

457/143

2.40/1.80
4.625
2.125" Pipe

161/134

254/201

331/251

389/286

439/305

479/315

492/332

495/337

498/342

AJPE 316 Billet Alum

316/119

2.19/1.85
4.25
2.375" Pipe

118

151/122

233/174

290/244

325/283

348/302

360/310

367/315

375/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

AJPE 368 02 Billet Alum

368/130

2.35/1.88
4.50
2.375" Pipe

118

159/118

242/175

303/249

337/291

387/305

390/315

407/322

422/329

AJPE 368 03 Billet Alum

368/130

2.35/1.88
4.50
2.375" Pipe

111

147/131

222/181

287/252

328/295

364/313

392/322

406/327

421/333

AJPE 481-X Stage I SF1020 Alum

517/199

2.40/1.90
4.50
2.5" Pipe

147/125

228/177

306/227

369/269

422/308

455/345

482/364

495/375

AJPE 481-X Stage III SF1020 Alum

551/198

2.45/1.90
4.50
2.5" Pipe

147/131

229/178

308/219

374/259

427/292

458/315

477/334

497/347

AJPE 5.3 Inch BS Alum

591/240

2.70/2.05
-
2.4" Pipe

102

170/131

255/183

363/232

449/289

525/336

598/375

650/404

661/426

665/437

670/448

Avenger 345 CNC 24 Deg Alum

345/110

2.30/1.90

110/119

80/75

151/133

245/170

304/201

342/228

364/258

378/277

384/288

Avenger 360 CNC 24 Deg Alum

360/110

2.30/1.90

110/119

79/75

149/138

218/178

278/200

337/226

367/262

381/282

392/293

BMF 310 CNC Port Alum

310/150

2.30/1.88

119

259/174

325/212

374/250

386/277

393/292

394/304

400/315

BMF 310 Out of Box Weingartner Racing Alum

310/-

2.30/1.88
4.50
No Pipe

N/A

77/68

153/130

235/176

281/214

323/248

358/268

357/283

357/299

BMF 310 Out of Box Weingartner Racing Brez Alum

310/-

2.30/1.88
4.31
No Pipe

N/A

78/63

151/133

219/171

273/216

317/258

352/274

372/289

377/300

BMF/CFE 10sec CNC Alum

310/-

2.25/1.88
4.31
No Pipe

N/A

67/61

130/125

204/160

282/208

324/243

356/265

378/277

381/288

BMF/CFE 10sec CNC Alum

310/-

2.25/1.88
4.31
2" Pipe

N/A

67/61

130/131

204/179

282/220

324/256

356/280

378/285

381/307

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

BMF 330 CNC Port Alum

330/150

2.30/1.88

119

264/174

331/212

397/250

398/277

398/292

400/304

400/315

BMF 350 CNC Port Alum

350/150

2.30/1.88

119

259/174

326/212

372/250

407/277

414/292

416/304

418/315

BMF 385 CNC Port Alum

385/150

2.30/1.88

119

267/174

336/212

381/250

405/277

420/292

432/304

442/315

BMF2 405 CNC Port Alum

405/150

2.35/1.88

119

258/174

325/212

375/250

411/277

429/292

443/304

456/315

BMF - Texas Pro Stock Ported Slick Rick Racing Heads Alum

N/A

2.35/-

N/A

230/-

312/-

376/-

418/-

451/-

466/-

475/-

480/-

484/-

BMF - Texas Pro Stock Ported Slick Rick Racing Heads Alum

N/A

2.375/-

N/A

232/-

314/-

383/-

437/-

459/-

480/-

492/-

495/-

496/-

BMF - Texas Pro Stock Ported Slick Rick Racing Heads Alum

N/A

2.40/-

N/A

250/-

320/-

390/-

446/-

473/-

484/-

494/-

504/-

511/-

Brodix JJ 270 Alum

270/-

2.25/1.88

119

159/116

223/145

270/172

314/196

334/217

340/236

Brodix JJ 294 Alum

294/-

2.25/1.88

119

160/116

226/145

276/172

314/196

337/217

342/236

Brodix DS 320 26 Deg Alum

320/-

2.25/1.88

119

162/106

226/145

283/179

339/210

368/234

370/258

371/272

Brodix DS 365 26 Deg Alum

320/-

2.30/1.88

119

160/106

223/145

287/179

328/210

359/234

379/258

393/272

Brodix-HVH Oval Alum

N/A

2.25/1.88

N/A

170/126

250/177

307/212

347/246

373/267

384/279

388/288

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix BB-1 OEFI Alum

258/-

2.25/1.88

119

162/106

219/137

252/166

265/190

272/211

273/225

Brodix RR BB-O CCM Alum

270/-

2.25/1.88
-
Pipe

119

74/64

163/113

218/145

267/171

306/194

328/216

341/234

348/244

Brodix RR BB-O 26 Deg Alum

270/-

2.25/1.88

119

154/106

221/137

274/164

316/188

335/211

342/229

Brodix RR BB-O CNC Chamber Wolfplace FlowData Alum

270/-

2.25/1.88
4.53
No Pipe

N/A

77/65

152/118

224/147

283/178

318/205

344/230

347/248

Brodix RR BB-R 26 Deg Alum

294/-

2.25/1.88

119

160/106

227/137

279/164

317/188

328/211

340/229

Brodix RR BB-R CNC Chamber Hekimian Racing Alum

N/A

2.25/1.88

119

161/112

228/146

281/178

321/203

339/222

346/235

Brodix RR BB-R Ported Mike Stark I-45 E-45 Saenz 680 Alum

310/-

2.25/1.88
4.31
No Pipe

N/A

75/66

156/123

230/154

297/184

341/209

370/232

384/250

385/265

387/275

Brodix RR BB-2 Plus Alum

312/-

2.25/1.88

119

150/116

215/145

265/172

311/196

334/217

344/236

Brodix RR BB-2 Plus STS Alum

320/-

2.25/1.88

119

162/126

244/164

285/201

328/228

359/251

369/267

373/284

Brodix RR BB-2Xtra CNC Alum

N/A

2.30/1.88

N/A

167/126

232/164

295/201

346/228

381/251

402/267

408/272

Brodix RR BB-3Xtra CNC Alum

N/A

2.30/1.88

N/A

162/112

244/146

312/178

355/203

389/222

406/235

414/238

417/241

Brodix RR Ported Weingartner Racing Alum

295/-

2.25/1.88
4.31
No Pipe

120

70/58

163/99

240/128

265/157

303/181

324/205

342/224

354/238

366-251

366/252

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix BB-1 26 Deg Alum

280/-

2.25/1.88

119

150/106

209/137

259/166

290/190

300/211

303/225

Brodix BB-1 26 Deg 305 CNC M2 Race Systems Alum

305/-

2.25/1.88

119

154/135

236/176

293/211

339/242

362/265

371/281

Brodix BB-1 26 Deg 308 CNC M2 Race Systems Alum

308/-

2.30/1.88
4.50

118

253/188

311/215

349/250

367/282

376/301

380/307

Brodix BB-2 26 Deg Alum

305/-

2.25/1.88

119

157/107

212/137

263/166

294/190

312/214

320/226

Brodix BB-2 Plus 26 Deg Alum

312/-

2.25/1.88

119

150/122

215/148

265/187

311/216

334/229

344/238

Brodix BB-2 Plus STS 26 Deg Alum

320/-

2.25/1.88

119

162/132

244/169

285/204

328/234

359/261

369/274

373/284

Brodix BB-2 Plus 26 Deg Ported Straub Technologies Alum

312/-

2.30/1.88
4.50

119

161/115

240-225/151

294-281/196

325-322/234

353-358/271

366-375/290

379-382/303

389-384/314

395-385/324

Brodix BB-2X 26 Deg Alum

340/-

2.30/1.88

119

154/106

211/137

260/166

292/190

312/211

323/225

Brodix BB-2X 26 Deg Alum

340/-

2.30/1.88

119

153/122

221/138

276/171

322/198

357/216

363/229

Brodix BB-2X 26 Deg 3V Performance Ported Alum

N/A

2.30/1.88
4.50
No Pipe

N/A

148-146/126

213-209/161

265-258/204

310-301/244

345-319/275

368-337/291

376-353/301

Brodix BB-2X 26 Deg CNC CC Alum

341/-

2.30/1.88

N/A

153/132

225/176

285/211

333/235

368/254

365/264

365/270

Brodix BB-2X 26 Deg Sonny's Alum

341/124

2.30/1.90

119

367/265

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix BB-2Xtra 26 Deg Alum

340/-

2.30/1.88

119

160/132

220/159

277/193

325/219

360/234

379/250

Brodix BB-2Xtra 26 Deg CNC M2 Race Systems Alum

355/-

2.30/1.88
4.50

119

183/134

235/177

294/216

340/247

376/268

395/280

408/288

Brodix BB-3 26 Deg EVM 30 Alum

370/-

2.35/1.88

119

145/93

206/129

265/161

316/187

351/213

371/229

Brodix BB-3Xtra 24 Deg 327 Alum

327/-

2.30/1.88

119

163/128

237/173

307/215

361/247

401/270

406/280

401/283

Brodix BB-3Xtra 24 Deg 345 Alum

345/-

2.30/1.88

119

162/138

244/190

312/227

355/256

389/275

406/296

414/301

417/304

Brodix BB-3Xtra 24 Deg 363 Alum

363/-

2.30/1.88

119

154/142

230/187

300/217

356/243

387/265

389/275

389/280

391/281

Brodix BB-3Xtra 24 Deg 380 I-45 E-45 Alum

380/-

2.35/1.88

N/A

159/134

237/177

309/216

362/249

401/277

430/304

443/308

442/313

Brodix BB-3Xtra BP 24 Deg CNC Alum

366/-

2.30/1.88

119

154/130

237/177

307/239

362/278

394/284

416/290

423/295

423/297

Brodix BB-3Xtra O 24 Deg 335 CNC I-45 E-45 Alum

335/-

2.35/1.88

119

162/142

233/187

298/217

355/243

397/265

417/275

420/280

411/281

Brodix BB-3Xtra O 24 Deg 380 CNC I-45 E-45 Alum

380/-

2.35/1.88

119

159/134

237/182

309/219

360/254

401/254

430/301

443/306

442/311

Brodix BB-3Xtra O 24 Deg 332 CNC I-50 E-50 Alum

332/-

2.30/1.88

119

153/130

231/177

300/239

354/278

396/284

424/290

425/295

428/297

Brodix BB-3Xtra O 24 Deg 351 CNC D & F Alum

351/-

2.30/1.88

119

163/130

240/177

312/239

360/278

393/284

412/290

418/295

425/297

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix BB-3Xtra O 24 Deg 351 CNC I-50 E-50 Alum

351/-

2.35/1.88

119

154/130

229/177

298/239

353/278

400/284

433/290

441/295

443/297

Brodix BB-3Xtra O 24 Deg 365 CNC I-50 E-50 Alum

365/-

2.35/1.88

119

151/130

224/177

294/239

351/278

400/284

433/290

451/295

460/297

Brodix BB-3Xtra O 24 Deg 3v Performance Bad Port Alum

355/-

2.35/-

N/A

87/-

168/-

242/-

304/-

348/-

375/-

397/-

418/-

428/-

433/-

Brodix BB-3Xtra 24 Deg 345cc Ported Weingartner Racing Alum

355/-

2.35/1.88
4.625
No Pipe

119

72/69

149/127

232/173

294/210

346/247

385/277

417/292

425/302

435/309

437/314

Brodix BB-3Xtra 24 Deg 365cc Ported Weingartner Racing Alum

380/-

2.35/1.88
4.625
No Pipe

119

70/60

146/126

227/172

289/217

348/259

394/287

431/303

436/315

446/322

451/330

Brodix BB-377 HH 24 Deg Oval CNC I-52 E-55 Alum

377/-

2.375/1.85

N/A

145/122

221/190

296/231

353/266

397/287

434/304

457/306

469/308

Brodix BP HH BB 383 24 Deg Oval CNC I-52 E-55 Alum

383/-

2.375/1.85

119

145/122

221/190

296/231

353/266

397/287

434/304

457/306

469/308

Brodix BP HH BB 383 MC 24 Deg Oval CNC I-55 E-55 25/50 Alum

383/-

2.40/1.85

119

143/122

218/169

291/211

352/247

402/270

449/294

470/304

481/311

Brodix BP HH BB 395 MC 24 Deg Oval CNC I-55 E-55 25/50 Alum

395/-

2.40/1.85

119

141/126

217/166

291/208

352/244

405/266

445/291

469/301

488/306

Brodix HH X 24 Deg Oval CNC I-55 E-55 25/50 Alum

N/A

2.40/1.85

119

154/106

227/158

307/192

366/222

411/258

459/299

475/323

478/335

Brodix HH 383 Out of Box Weingartner Racing Alum

N/A

2.40/1.85
4.625
No Pipe

119

70-73/57

148-144/112

208-214/160

273-283/199

333-347/237

387-395/266

428-429/280

458-444/289

457/293

457-468/-

Brodix HH 395cc Ported Weingartner Racing Alum

405/-

2.40/1.85
4.625
No Pipe

119

70/52

145/108

221/159

293/198

345/238

397/281

438/298

471/313

487/324

492/335

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix HH Ported BES SS Valves Alum

N/A

2.40/1.88

N/A

148/130

228/179

300/220

362/267

413/307

454/329

480/343

474/353

475/358

Brodix HH Ported BES Titanium Valves Alum

N/A

2.40/1.88

N/A

129/118

218/170

295/217

360/260

420/300

467/329

492/347

490/356

494/362

508/365

Brodix BB-4 24 Deg Alum

340/-

2.35/1.88

134

151/132

211/161

261/188

303/216

334/236

361/252

Brodix BB-4 24 Deg Raised Port MBE SF600 Alum

385/-

2.375/1.80
4.52
No Pipe

134

148/117

224-221/167

290-289/211

339-340/247

394/270

441-428/286

469-449/295

465-462/298

464-470/300

Brodix BB-4Xtra 24 Deg M2 Race Systems CNC Alum

390/-

2.35/1.88
4.50

119

148/122

214/161

271/192

332/221

380/253

414/269

431/279

Brodix BB-4Xtra 24 Deg M2 Race Systems CNC Alum

390/-

2.35/1.90
4.60

119

141/122

206/156

275/190

327/222

382/245

425/263

447/276

Brodix BB-5 26 Deg Alum

387/-

2.35/1.90

108

108/77

150/103

203/134

258/167

309/200

354/222

384/238

Brodix BB-5 Sonny's Alum

390/-

2.35/1.90

108

111/74

163/116

219/153

276/187

321/213

360/233

Brodix BB-5 Sonny's Sportsman Alum

395/123

2.35/1.90

123

405/275

Brodix BB-5 Sonny's Max Flow Alum

406/149

2.35/1.90

113.5

421/311

439/-

Brodix Big Duke Weingartner Racing

N/A

2.40/1.90
4.50
No Pipe

N/A

81/73

178/137

253/179

296/210

345/239

380/272

404/302

424/314

433/324

438/331

Brodix Big Duke - PB 1800 18 Deg Alum

415/-

2.40/1.90
4.60

141/126

200/166

263/200

322/225

370/242

407/253

418/257

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix Big Duke - PB 1800 18 Deg Ported Alum

415/-

2.40/1.90
4.60

165/126

242/180

318/236

388/296

430/313

463/319

483/338

Brodix Big Duke - PB 1801 18 Deg Ported Alum

375/-

2.40/1.90
4.50

162/129

245/180

312/222

367/269

411/301

442/308

463/315

Brodix Big Duke - PB 1802 18 Deg Alum

456/-

2.40/1.90
4.60

146/112

216/159

289/199

359/233

417/266

454/287

478/300

495/308

Brodix Big Duke - PB 1802 18 Deg CNC Chamber I-45 E-45 Alum

456/-

2.40/1.90

N/A

156/135

230/180

305/219

361/252

414/294

453/306

476/313

Brodix Big Duke - PB 1803 18 Deg CNC Chamber I-55 E-55 Alum

413/-

2.45/1.86

137/110

217/162

296/204

362/238

418/265

464/288

484/320

490/328

Brodix Big Duke - BP PB 1803 18 Deg CNC I-55 E-55 Alum

410/-

2.45/1.86

91/95

145/126

224/172

300/211

369/245

425/270

475/318

500/338

515/351

Brodix Big Duke - KC PB 1803 18 Deg CNC M2 Race Systems Alum

410/-

2.45/1.86

138/116

218/164

300/204

364/235

420/266

460/294

489/323

505/343

Brodix Big Duke 12 Deg CNC Slick Rick Racing Heads Alum

N/A

2.52/1.86
-
No Pipe

N/A

233/168

322/225

399/293

468/327

512/340

535/348

550/352

556/355

563/357

Brodix - KC PB 1600 16 Deg Ported I-55 E-55 Alum

416/-

2.45/1.86

147/113

232/177

314/224

383/274

439/310

482/333

506/340

515/345

Brodix - KC PB 5000 5.0 Inch BS 15 Deg CNC Alum

506/-

2.52/1.86

154/116

237/172

323/219

398/263

437/297

506/330

539/351

557/364

Brodix / Sonny's PB 2005 14.5 Deg I-55 E-55 Alum

490/-

2.52/1.86

129/111

199/156

287/196

363/231

431/258

482/274

517/287

540/293

Brodix / Sonny's PB 2005 14.5 Deg Minor Port I-55 E-55 Alum

490/-

2.52/1.86

153/132

241/187

323/227

395/258

452/289

499/326

517/338

540/343

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix / Sonny's STS PB 2005 14.5 Deg E-Tulip I-55 E-55 Alum

N/A

2.52/1.86

N/A

144/119

222/182

309/229

384/265

451/301

505/333

548/357

563/362

Brodix / Sonny's BP PB 2002 14.5 Deg CNC I-55 E-55 Alum

545/-

2.52/1.86

149/122

230/173

316/212

390/249

461/275

521/318

561/344

587/360

Brodix EB 650 Alum

N/A

2.475/1.92

N/A

105/88

181/130

255/173

330/214

395/268

450/307

482/335

498/344

Brodix PB 1200 12 Deg CNC Alum

483/-

2.52/1.86

147/126

227/180

312/224

388/264

460/305

509/319

545/333

571/338

Brodix PB 1200 12 Deg CNC Alum

483/-

2.52/1.86

68/72

151/126

235/180

323/224

395/264

459/305

513/319

549/333

563/338

Brodix PB 1201 12 Deg CNC Alum

480/-

2.45/1.86

156/122

249/176

332/231

398/276

460/300

499/303

522/339

530/340

Brodix PB 1201 12 Deg CNC Alum

480/-

2.45/1.86

68/72

151/122

243/176

330/231

400/276

454/300

495/303

521/339

533/340

Brodix KC PB 1202 12 Deg CNC Alum

497/-

2.48/1.86

66/70

154/122

247/174

332/229

401/274

468/303

509/328

535/338

553/339

Brodix PB 1203 12 Deg I-55 E-55 Alum

475/-

2.52/1.86

150/119

230/169

309/217

377/251

442/280

495/306

530/316

536/323

Brodix KC PB 1204 12 Deg CNC Alum

510/-

2.52/1.86

71/75

157/116

216/169

298/221

369/261

434/321

489/344

542/358

578/370

Brodix PB 5000 16 Deg 5.0 BS CNC Alum

515/-

2.52/1.86

154/116

237/172

323/219

398/263

461/297

506/330

539/351

557/364

Brodix PB 5001 16 Deg 5.0 BS CNC Alum

515/-

2.52/1.86

156/119

245/169

338/217

415/261

471/301

511/343

545/367

566/382

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix PB 5002 16 Deg 5.0 BS CNC Alum

509/-

2.52/1.86

148/113

242/167

335/217

406/254

464/316

505/348

535/353

546/359

Brodix - Texas Pro Stock Type Ported Slick Rick Racing Heads I-50 E-55 Alum

N/A

2.40/1.80

157/126

248/160

330-329/200

402-394/235

450-438/262

470-466/278

485-483/290

500-488/298

508-490/303

510-490/308

Brodix BR X 20 Deg CNC CC Alum

444/-

2.40/1.80

100

167/106

250/169

338/215

404/249

461/269

489/286

488/301

495/305

Brodix BRX 20 Deg CNC CC Weingartner Racing I-50 E-55 Alum

N/A

2.40/1.80
4.625
No Pipe

N/A

76-75/53

155-159/114

243-242/165

315/213

380-379/249

429-425/272

463-448/306

475-452/315

474-465/319

482-465/322

Brodix BBX 20 Deg Ported Weingartner Racing Alum

N/A

2.40/1.80
4.625
No Pipe

100

74/53

141/112

229/164

307/212

384/252

443/278

481/301

500/319

504/330

513/338

Brodix BR SR 20 Deg CNC I-50 E-55 Alum

440/-

2.40/1.80

161/129

242/176

326/216

399/254

455/291

487/308

498/326

507/335

Brodix SR20 Conventional Darin Morgan Alum

N/A

2.40/1.80

180-182/132

263-266/180

346-345/218

409-411/257

460-461/288

488-484/311

499-493/331

503-502/340

509/344

Brodix SR20 NE BB Mod Alum

343-338/-

2.25/1.85

153-156/122

230-233/161

302-304/212

359-351/245

396-383/263

414-403/272

423-411/279

Brodix SR20 Ported BES Alum

N/A

2.425/1.80

N/A

145/122

226/157

315/209

395/270

451/311

480/336

503/353

517/365

524/372

Brodix SR20 Ported Foxwell Motorsports Alum

N/A

2.45/1.80
-
Pipe

N/A

163/116

262/184

341/231

410/282

461/320

501/346

512/361

516/369

521/374

Brodix SR20 Ported Straub Technologies Alum

N/A

2.40/1.80
4.60

N/A

163/117

263/191

341-342/238

410-412/281

463-467/319

495-499/345

505-503/357

513-508/365

523-517/371

Brodix PB DN-9 9 Deg CNC I-55 E-55 Alum

540/-

2.52/1.80

157/119

239/177

331/225

411/269

484/308

536/332

569/347

586/354

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Brodix 9 Deg Ported Slick Rick Racing Heads Alum

N/A

2.55/1.81
4.63

N/A

150/109

245/150

330/195

406/237

470/271

524/300

560/318

583/330

595/341

606/-

Brodix DN-9 9 Deg Ported Frankenstein Engine Dynamics SF1020 Alum

N/A

2.52/1.80
4.65

N/A

156/112

255/168

339/217

409/263

470/311

516/335

537/352

554/366

571/374

Canfield 305 Alum CHP

305/-

2.25/1.88
4.25
Pipe

114

75/61

161/115

215/163

257/199

303/228

328/251

339/265

332/273

Canfield 310 SF600 Alum

310/100

2.25/1.88

119

72/74

161/126

240/181

299/224

339/256

358/286

356/306

355/317

Canfield 310 Out of Box SF600 Alum

310/100

2.25/1.88

113/
119/
125

72/74

138/123

204/176

266/205

318/237

347/260

353/273

355/284

Canfield 310 VJ Bowl work Speier Racing Heads Alum

315/-

2.25/1.88

N/A

155-153/-

217/-

282-286/-

329-330/-

349-339/-

352-340/-

355-344/-

343-353/-

341-355/-

Canfield 310 Ported CFM Technologies Alum

N/A

2.25/1.88

N/A

180/133

259/182

311/221

348/250

367/279

373/295

Canfield 310 Ported Jim V Alum

N/A

2.25/1.88
-
No Pipe

N/A

152/132

233/186

295/228

344/256

371/280

380/310

-/326

-/330

Canfield 310 Ported Foxwell Motorsports Alum

N/A

2.25/1.88

118

155-153/117

221/158

283-279/198

335-321/232

369-347/258

386-367/279

379-377/291

Canfield 310 Ported Foxwell Motorsports Alum

N/A

2.30/1.88
-
2.25" Pipe

N/A

161-159/113

226-223/166

292-289/201

347-332/249

386-360/280

401-382/300

404-395/316

412-404/326

Canfield Ported Foxwell Motorsports I-45 Alum

325/-

2.30/1.88
-
2 1/4 Pipe

N/A

158-151/116

225-219/158

290-283/195

338-327/230

373-352/256

381-380/276

390/287

395-393/295

Canfield Ported Foxwell Motorsports I-45 Alum

335/-

2.30/1.88

N/A

164-163/-

231-230/-

297-296/-

348-330/-

381-358/-

402-382/-

410-397/-

415-407/-

419-415/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Canfield Ported Foxwell Motorsports I-45 Alum

N/A

2.30/1.88
4.60

N/A

166/121

245-247/170

306-312/209

353-346/243

386-368/274

406-387/300

415-406/316

423-415/330

429-419/340

Canfield Ported Foxwell Motorsports I-50 E-50 Alum

363/-

2.375/1.85
4.60
No Pipe

121

148/109

230/158

303-300/198

361-355/236

407-387/270

426-408/294

438-427/313

443-441/335

451-450/349

Canfield 310 Ported Jeff Birtchell Alum

N/A

2.25/1.88

N/A

186/140

258/185

313/226

369/264

397/289

406/312

411/316

Canfield Ported Champion Racing Heads SF600 Alum

N/A

2.25/1.88
4.40

N/A

186/143

261/199

313/246

348/276

357/292

366/299

Canfield 310 Weingartner Racing I-BC E-Tuliped Alum

315/-

2.25/1.88
4.31
No Pipe

N/A

68-69/60

135-133/134

201-199/176

259-260/206

306-294/233

326-305/245

352-340/248

333-328/251

330-325/257

323-319/262

Canfield 350 Out of Box SF600 Alum

350/-

2.30/1.88
-
Pipe

113/
119/
125

82/74

176/123

250/175

313/213

350/256

367/284

376/309

380/320

381/322

Canfield CFE Ported Alum

N/A

420/-

Canfield 310 2012 Foxwell Motorsports Alum

N/A

2.25/1.88

N/A

165/122

235-239/170

301-294/212

340-321/240

358-339/261

356-341/274

351-348/281

Canfield 310 2012 Foxwell Motorsports CNC bowl blend Alum

312-309/-

2.25/1.88

N/A

170-172/123

246-244/170

311-295/212

353-329/245

373-354/274

373-364/295

373-370/309

Canfield 360 Ported Foxwell Motorsports Alum

N/A

2.35/1.88
4.60

N/A

162-166/119

238-241/174

309/217

366-360/254

406-390/281

427-412/315

433-428/332

441-436/343

448-440/352

CFE/BMF 310 Alum

317/150

2.30/1.88

116

397/304

CFE 366310 Alum

310/150

2.30/1.88

119

259/174

325/212

374/250

386/277

393/292

394/304

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

DART N.E. Mod. Oval Full Port Back Cut SF600

307-311/ 145

2.25/1.88
4.44
No Pipe

117

153-156/122

223-224/163

281-284/218

314-330/260

340-362/274

356-370/283

364-374/293

DART 265 Oval Super Mod. Alum

275/128

2.30/1.88
4.50
No Pipe

N/A

156/132

216/169

274/203

310/230

324/247

329/255

DART 265 CNC Oval Super Mod. Alum

298/143

2.30/1.88
4.50
No Pipe

N/A

157/142

222/190

274/230

309/263

365/284

380/294

DART 275 Oval CCM Alum

275/-

2.25/1.88
-
No Pipe

119

68/68

151/115

215/155

259/192

293/223

315/244

310/259

DART 308 Iron Eagle

308/129

2.25/1.88
4.50
No Pipe

119

157/136

232/175

291/210

325/233

347/249

359/258

363/266

DART 308 Eagle David Vizard Iron

308/129

2.25/1.88

119

204-201/173

262-265/200

306/226

310-303/250

353-350/259

363-360/269

DART 308 Ported Eagle David Vizard Iron

N/A

2.25/1.88

119

229-222/179

262-272/222

300-303/250

335-303/271

370-354/280

383/289

DART 308 Iron Eagle FlowMotion Performance SF600 Ported Jim V - Marine

324/138

2.30/1.88
4.60

N/A

218-221/180

292-287/242

341-332/274

376-359/295

393-380/303

396/307

DART 308 Super Mod.

316/128

2.25/1.88
4.50
No Pipe

N/A

153/132

221/169

275/203

318/230

348/247

367/255

DART 320 Out of Box Bill Jones Alum

327/128

2.30/1.88

N/A

73/74

143/148

208/187

246/217

290/238

320/247

DART 320 Super Mod. Alum

327/128

2.30/1.88
4.50
No Pipe

N/A

152/132

216/169

274/203

316/230

338/247

351/255

DART 320 CNC Super Mod. Alum

321/ 123.1

2.25/1.88
-
No Pipe

119.1

157/126

230/165

284/199

319/224

335/236

339/242

339/246

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

DART 320 CNC Super Mod. Alum

346/143

2.30/1.88
4.50
No Pipe

119.1

157/142

221/190

280/230

326/263

365/284

370/294

DART 335 CNC Weingartner Racing Alum

N/A

2.30/1.88
4.625
No Pipe

N/A

66-54/54

125-122/109

203-195/151

276-258/180

322-309/223

365-340/250

395-365/266

391-380/276

380-373/281

383-375/284

DART 330 Iron Eagle Pro CNC

330/-

2.30/1.88
-
No Pipe

126

157/136

232/175

291/210

325/233

347/249

359/258

363/266

DART 345 Iron Eagle

345/129

2.30/1.88
4.50
No Pipe

119

158/136

228/175

289/210

327/233

358/249

378/258

390/266

DART 345 Eagle David Vizard Iron

345/129

2.30/1.88

119

79/56

162-163/115

249/167

314-315/205

356-350/225

379-371/238

384-377/248

387-379/255

DART 345 Eagle Basic Ported David Vizard Iron

345/129

2.30/1.88

119

79/56

165-166/118

255-254/177

325-324/228

361-360/251

387-382/270

399-389/292

406-394/299

DART 365 Eagle Iron

365/-

2.30/1.85

126

171/132

248/171

310/240

362/273

405/290

414/300

428/307

DART Iron Ported Speier Racing Heads I-50 E-50

363/-

2.35/1.88
4.60

122

154-155/145

229-232/194

290-293/231

346-344/267

393-390/292

420-417/303

434-431/311

440-437/314

446-441/316

DART 360 16500000 Kendrick Auto Alum

N/A

2.25/1.9

119

75/68

136/99

184/125

220/152

261/181

294/195

313/202

DART 360 16500000 Ported Kendrick Auto Alum

N/A

2.25/1.9

119

84/73

157/108

223/149

270/181

308/210

348/237

386/259

DART 360 Super Mod.

355/ 124.6

2.30/1.88
-
No Pipe

114.1

152/126

220/165

277/199

324/224

354/236

369/242

373/246

DART 360 Super Mod. Alum

366/128

2.30/1.88
4.50
No Pipe

N/A

154/132

220/169

279/203

321/230

346/247

370/255

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

DART 360 CNC Super Mod. Alum

389/143

2.30/1.88
4.50
No Pipe

119

157/142

223/190

284/230

337/263

374/284

393/294

DART 360 Out of Box Weingartner Racing Alum

N/A

2.30/1.85
4.50
No Pipe

N/A

77/66

154/107

234/147

288/183

326/210

360/230

363/244

368/250

DART 360 Out of Box Weingartner Racing Brez Alum

N/A

2.30/1.85
4.31
No Pipe

N/A

75/66

166/107

235/147

283/183

327/210

351/230

365/244

378/257

DART 360 CNC Rons Porting Service Alum

N/A

2.30/1.90
-
No Pipe

N/A

185/142

260/183

321/214

357/251

389/282

406/298

420/307

429/318

DART 370 CNC Oval Full Port Back Cut SF600

370/152

2.30/1.88
4.50
No Pipe

125

176-175/135

243-238/187

305-302/231

348-350/280

381-385/292

403-411/310

410-420/319

DART Conventional 22.25 Deg - Texas Pro Stock CNC Darin Morgan SF600 Alum

N/A

2.375/1.85
-
No Pipe

N/A

135-138/-

228/-

312-315/-

375-378/-

427-431/-

459-471/-

477-489/-

480-501/-

485-507/-

DART 360 Rolled 22 Deg - 2009 Texas Pro Stock CNC Darin Morgan SF600 Alum

N/A

2.375/1.85
-
No Pipe

N/A

141-138/-

228/-

315/-

384-378/-

426-431/-

456-471/-

465-489/-

477-501/-

480-507/-

DART 360 Rolled 22 Deg - 2010 Texas Pro Stock CNC Darin Morgan SF600 Alum

N/A

2.375/1.85
-
No Pipe

N/A

149-150/-

237/-

315/-

384-385/-

434-439/-

463-480/-

481-504/-

495-510/-

501-516/-

DART PRO1 275 Oval Alum

275/-

2.25/1.88

121

154/127

225/170

284/211

318/244

341/267

352/282

DART PRO1 275 Alum

275/-

2.25/1.88
-
No Pipe

121

154/136

225/175

284/210

318/233

341/249

352/258

DART PRO1 330 Ported BES Alum

330/-

2.30/1.88

129.7

166/136

234/186

296/232

345/262

373/290

388/309

392/326

398/344

398/352

DART PRO1 380 Ported BES Alum

380/-

2.35/1.88

N/A

158/128

236/178

295/221

345/272

397/301

423/319

432/335

443/378

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

DART PRO1 310 Alum

310/129

2.25/1.88
4.50
No Pipe

121

147/137

219/175

275/210

318/233

347/249

364/258

369/266

DART PRO1 310 Ported Jim V Alum

320/-

2.25/1.88
-
No Pipe

N/A

149/130

225/171

295/206

348/256

380/286

394/300

DART PRO1 325 Alum

325/129

2.25/1.88
4.50
No Pipe

121

147/137

223/175

281/210

326/233

353/249

371/258

376/266

DART PRO1 335 CNC Alum

335/138

2.30/1.88
4.50
No Pipe

N/A

174/136

245/178

306/235

353/265

383/282

401/296

406/303

DART PRO1 345 Alum

345/129

2.30/1.88
4.50
No Pipe

121

143/136

214/175

272/210

321/233

359/249

384/258

397/266

DART PRO1 355 CNC Alum

355/138

2.30/1.88
4.50
No Pipe

N/A

177/136

251/178

310/235

360/265

399/282

423/296

426/303

DART PRO1 355 CNC David Vizard Alum

N/A

2.30/1.88

119

77/58

171/123

253/175

325/225

360/250

378-373/272

400-388/292

414-395/303

423-399/306

DART 355 CNC Foxwell Motorsports Alum

N/A

2.30/1.88
4.50

N/A

154-156/117

223-226/163

293-290/227

338-333/266

375-366/288

401-383/302

409-396/307

417-407/321

425-417/331

DART PRO2 Ported SF600 Alum

380/144

2.30/1.88

119

176/134

239/178

304/223

346/274

378/300

402/318

420/330

430/338

438/346

DART PRO1 20 Deg 440 Alum

440/-

2.40/1.8

158/133

242/181

321/224

388/257

425/284

448/308

452/321

460/326

467/333

DART PRO1 20 Deg 451 Alum

451/-

2.40/1.8

176/145

250/197

309/237

375/273

429/300

460/326

479/342

486/351

489/357

DART PRO 20 Out of Box Weingartner Racing Alum

N/A

2.40/1.8
-
No Pipe

N/A

74-75/50

156-171/109

238-242/157

316-320/208

379-378/278

428-412/284

454-436/293

453-443/300

457-453/300

461-460/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

DART PRO 20 Ported Weingartner Racing Alum

N/A

2.40/1.8
4.625
No Pipe

100

72/52

140/112

230/169

306/216

382/251

439/277

474/302

486/322

504/336

517/344

DART PRO 20 Speier Racing Heads Alum

450/-

2.40/1.8
4.60
2.125" Pipe

164/123

232/171

310/214

380/255

435/296

475/316

489/330

492/339

496/344

DART SR2 - Texas Pro Stock Ported Slick Rick Racing Heads Alum

N/A

2.425/-

N/A

240/-

322/-

392/-

449/-

488/-

497/-

510/-

518/-

525/-

DART Big M Super Mod. Ported Alum

411/147

2.35/1.88
4.60
No Pipe

N/A

160/124

223/159

285/196

336/243

377/268

401/283

415/295

DART Big M Super Mod. Ported Full Polish Alum

411/147

2.35/1.88
4.60
No Pipe

N/A

161/124

235/159

302/196

357/243

394/268

418/283

429/295

DART 18 Deg Oval Alum

330/152

2.25/1.84
-
No Pipe

190/120

254/164

318/191

377/222

404/257

412/301

413/301

DART 18 Deg Oval CNC Alum

383/152

2.35/1.84
-
No Pipe

102

162/136

236/177

314/216

376/254

420/289

444/316

450/330

DART Big Chief 18 Deg PRO1 Alum

424/185

2.40/1.90
-
No Pipe

N/A

158/138

222/185

284/229

345/267

390/293

420/30

431/305

437/309

DART Late Big Chief 18 Deg CNC Super Mod. Alum

402/175

2.40/1.90
4.60
No Pipe

N/A

158/154

234/211

302/266

365/282

407/293

432/297

444/301

DART Late Big Chief 18 Deg Full Port 45 Deg Intake Back Cut Alum

421/186

2.40/1.90
4.60
No Pipe

N/A

165/141

239/191

294/237

356/280

410/315

445/333

461/339

469/351

DART Big Chief 18 Deg Ported ET Performance Alum

N/A

2.40/1.88
4.50

N/A

77-79/61

160-161/130

222-225/180

301-297/232

369-362/274

410-417/290

433-451/308

454-469/320

471-478/331

DART Big Chief 18 Deg Ported MBE I-55 E-55 SF1020 Alum

430/195

2.45/1.80
4.52
No Pipe

90-100

148/122

220/182

293/234

362/282

417/315

463/334

494/336

513/337

522/335

528/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

DART Big Chief 18 Deg Ported Chapman Alum

422/-

2.40/1.90
-
No Pipe

91.5

80/63

160/124

244/174

307/212

359/244

401/272

440/331

466/346

472/350

DART Big Chief 18 Deg CNC Slick Rick Racing Heads Alum

N/A

2.43/1.85
-
No Pipe

N/A

239/199

309/245

370/302

424/342

464/355

496/362

515/366

525/370

535/370

DART 18 Deg Alum

424/-

2.40/1.90

158/138

222/185

284/229

345/267

390/293

420/302

431/305

437/309

DART 18 Deg CNC Full Alum

424/185

-
-
No Pipe

492/343

DART PRO1 18 Deg CNC Bowls Alum

421/-

2.40/1.90
4.60
No Pipe

N/A

470/340

DART 14 Deg Olds Full Port Alum - CFE

440/-

2.40/1.90

N/A

245/204

326/264

376/312

425/327

457/330

474/340

475/341

DART 14 Deg Olds Full Port Alum

440/-

2.40/1.90
-
No Pipe

N/A

237/192

303/247

361/297

412/317

447/331

457/341

463/345

DART 14 Deg Olds Ported Dr Js Performance I-50 SF600 Alum

N/A

2.45/-

N/A

167/-

245/-

335/-

415/-

473/-

515/-

532/-

549/-

561/-

567/-

571/-

DART Big Chief 14 Deg Oval Full Port I-55 E-55 Deg SF1020 Alum

433/200

2.47/1.80
-
No Pipe

164/129

254/182

333/218

398/251

446/288

482/316

493/338

495/349

DART Big Chief 14 Deg Oval CNC Full Alum

433/-

2.47/1.80
4.60
No Pipe

N/A

515/365

DART Big Chief 14 Deg Oval CNC Full 433 Alum

433/-

2.47/1.80

164/120

254/182

333/218

398/251

446/288

482/316

493/338

495/349

DART Big Chief 14 Deg Oval CNC M2 Race Systems Alum

448/-

2.45/1.85
4.60

144/114

236/165

299/210

375/266

440/306

484/328

518/342

526/352

534/356

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

DART Big Chief 14 Deg Ported ET Performance Alum

390/-

2.45/1.88
4.625

86-86/62

160-160/129

240-241/195

309-308/261

361-361/301

409-407/318

440-433/328

453-451/334

467-467/336

DART Big Chief 14 Deg Ported ET Performance Alum

440/-

2.45/1.88
4.625

90-95/62

176-175/129

263-261/195

339-338/261

406-403/301

448-442/318

470-465/328

484-473/334

494-487/336

DART Big Chief 14 Deg Ported MBE I-55 E-55 SF600 Alum

449/192

2.45/1.83
4.52
No Pipe

72-89

164/122

235/182

324/234

396/282

458/315

500/334

524/336

525/337

537/335

DART Big Chief 14 Deg 5.0 BS Alum

512/-

2.575/1.90
-
No Pipe

163/152

260/203

344/251

413/302

468/334

512/356

540/366

551/371

560/374

DART Big Chief 14 Deg Ported BES Alum

N/A

2.50/1.80

153/122

258/184

341/243

419/303

474/339

511/354

536/365

552/375

558/380

DART Big Chief 14 Deg Alum

440/-

2.40/1.90

154/158

233/217

296/264

357/316

410/326

438/329

454/337

463/340

DART 11 Deg Big Chief II Oval Full Port 55 Deg SF1020 Alum

512/185

2.47/1.80
-
No Pipe

N/A

168/137

261/198

337/256

404/301

459/327

498/336

516/341

518/342

528/-

DART 11 Deg Big Chief II Ported MBE I-55 E-55 SF600 Alum

492/185

2.52/1.80
4.52
No Pipe

50-90

172/122

263/172

334/215

408/275

465/302

510/318

535/327

539/331

551/335

565/336

DART 11 Deg Big Chief Oval CNC Full Alum

512/-

2.47/1.80
4.60
No Pipe

N/A

545/360

DART 11 Deg Big Chief Ported BES Alum

N/A

2.50/1.80

N/A

158/130

249/185

344/236

424/294

489/338

527/366

547/378

545/384

556/389

DART 11 Deg Big Chief II Oval CNC Alum

555/-

2.50/1.85

N/A

168/136

262/188

338/232

399/279

456/321

501/348

521/357

522/363

534/364

Edelbrock Victor Jr CNC Oval 60409, 60419 SF1020 Alum

320/118

2.25/1.90
-
No Pipe

112

86/64

163/121

244/169

296/206

323/236

332/258

341/276

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Edelbrock Victor Jr CNC Rect 60409, 60419,60429, 60439 SF1020 Alum

295/118

2.25/1.90
-
No Pipe

112

86/64

163/121

244/169

296/206

323/236

332/258

341/276

Edelbrock/ Chapman 60429, 60439 Oval Ported Alum

295/118

2.25/1.90
-
No Pipe

112

86/64

160/121

236/169

285/206

307/236

312/258

315/276

Edelbrock 60459, 60479, 60499, 61459 Performer RPM 454-O Alum

290/110

2.19/1.88

110/
112

74/71

143/128

207/153

250/178

284/200

309-299/218

Edelbrock 60459 Performer RPM 454-O Wolfplace FlowData Alum

290/110

2.19/1.88
4.53
No Pipe

110

74-73/64

146-148/119

218/149

260-268/179

291-304/207

307-327/229

302-319/245

Edelbrock Performer 454-O 60479 SF1020 Alum

290/110

2.19/1.88

110

74/71

143/128

207/153

250/178

284/200

309/218

Edelbrock Performer 454-O 60479 CCM Alum

290/110

2.19/1.88
-
No Pipe

110

66/58

135/126

196/149

240/171

264/189

281/203

286/213

Edelbrock Performer 454-O 60499 SF1020 Alum

290/110

2.19/1.88

110

73/71

143/128

208/153

251/178

284/200

299/218

Edelbrock Performer RPM Xtreme 454-O 51459 SF1020 Alum

308-325/ 133

2.25/1.88
4.31

112

143/125

223-221/172

283-276/199

318-315/217

335-332/232

337/243

344-338/252

Edelbrock Performer RPM 454-R 60559 SF1020 Alum

315-300/ 110

2.19/1.88

118

76/70

146/132

212/156

255/181

294/207

314/228

Edelbrock Performer RPM Xtreme 454-R 51539, %1559 SF1020 Alum

345/145

2.30/1.88

110/118

158/134

237/190

299/227

344/255

366/267

377/272

385/280

Edelbrock Performer RPM 6046 AirWolf 305 Oval Dr Js Performance Alum

305/-

2.30/1.88
4.31
2" Pipe

105/110/115

74/62

145/123

225/165

286/190

329/215

355/235

374/254

381/271

387/287

396/299

Edelbrock 60559, 61559 Performer RPM 454-R Alum

315/110

2.19/1.88

118

76/70

146/132

210/156

255/181

294-284/207

314-297/228

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Edelbrock E-CNC Oval 24 Deg SF1020 Alum

308-325/133

2.25/1.88
4.31

112

144-143/125

221-223/172

283-276/199

315-318/217

332-335/232

337/243

337-344/252

Edelbrock E-CNC Oval 24 Deg Large Bore SF1020 Alum

308-325/133

2.25/1.88
4.6

112

149-145/125

230-229/173

299-289/200

337-331/218

358-351/234

364-356/249

361-364/257

Edelbrock 77459 Victor Jr. 24 Deg SF1020 Alum

300/128

2.25/1.90

118

72-70/64

140-139/122

213-210/164

273-267/199

318-297/223

342-307/240

346-309/251

331-317/257

336-324/260

Edelbrock Victor 24 Deg 77409, 77429 SF1020 Alum

340/128

2.30/1.88

118

80-75/62

159-153/123

234-232/164

295-295/197

343-330/223

369-343/241

380-352/255

378-364/262

379-370/265

Edelbrock/ Musi Victor 24 Deg 61409 SF1020 Alum

367-377/ 128

2.30/1.90

114

149-148/122

227-220/164

301-290/196

351-346/225

375-385/248

389-405/268

402-409/284

409-414/297

Edelbrock/ Musi Victor 24 Deg Out of Box NPS Alum

N/A

2.30/1.90
4.49
No Pipe

114

83-76/60

158/114

225-227/159

271-287/192

314-337/222

347-357/249

372-370/272

386-382/285

385-392/298

Edelbrock/ Musi Victor 24 Deg SF1060 Alum

N/A

2.30/1.90

114

78/62

157/119

237-236/161

300/199

353/238

383-390/267

403-413/284

408-422/296

413-419/305

418-421/312

Edelbrock/ Musi Victor 24 Deg Ported Dr Js Performance I-50 Alum

373/-

2.35/-

N/A

79-72/-

165-154/-

247-242/-

305-310/-

365-368/-

408-425/-

430-448/-

448-462/-

452-467/-

457-475/-

Edelbrock/ Musi Victor 24 Deg Ported colo cracker I-50 Alum

380/-

2.35/-

N/A

151/-

237/-

311/-

372/-

397/-

419/-

447/-

457/-

464/-

Edelbrock Victor 24 Deg Ported RFD 370 Alum

370/-

2.35/-

N/A

74/-

160/-

251/-

313/-

370/-

403/-

432/-

448/-

455/-

461/-

Edelbrock Victor 24 Deg Ported RFD 370 Alum

370/-

2.35/1.84
-
No Pipe

N/A

76/63

160/122

231/171

304/214

363/244

396/275

420/299

440/317

448/324

459/326

Edelbrock Victor 24 Deg Ported RFD 383 Alum

383/-

2.40/1.84
-
No Pipe

N/A

75/63

160/122

253/171

315/213

372/244

408/274

432/300

449/316

459/324

469/326

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Edelbrock Victor 24 Deg Ported RFD 383 Updated 12-04-08 Alum

383/-

2.40/1.84
-
No Pipe

N/A

162/122

235/171

306/213

368/244

408/274

446/300

464/316

472/324

485/326

Edelbrock Ported RFD Flowed Wolfplace FlowData Alum

N/A

2.35/1.84

N/A

75/57

165/114

246/163

314/204

366/244

406/275

432/305

449/324

459/330

Edelbrock/ Chapman 77659 Rect. CNC Ported 77609 Alum

372/154

2.30/1.90
-
No Pipe

130

85/62

156/135

229/198

287/242

328/278

362/300

380/312

Edelbrock Victor 18 Deg 617569 Alum

405/95

2.50/1.96

63/60

150/137

223/190

288/226

353/254

415/277

468/302

496/324

491/328

Edelbrock Big Victor 18 Deg CNC Alum

442- 451/189

2.45/1.85

294-284/230

360-349/258

414-411/281

457-456/302

482-487/319

480-486/324

Edelbrock Big Victor 618368 Alum

480/195

2.50/1.82

150/137

223/190

288/226

353/254

415/277

468/302

496/324

491/328

Edelbrock Big Victor 3 Ported BES Alum

N/A

2.50/1.80

N/A

164/109

259/161

358/203

434/248

496/293

533/328

552/350

568/367

580/379

Flo-Teh 290 SF1020 Alum

290/135

2.25/1.88

112

162/132

240/181

299/219

343/245

367/273

354/279

352/282

Flo-Teh 360 SF1020 Alum

360/128

2.25/1.88

133

161/128

237/181

293/227

345/261

385/273

408/277

408/281

Flo-Tek 290 SF1020 Alum

290/-

-
4.31

112

148/117

219/161

275/189

317/214

341/233

342/246

344/252

Flo-Tek 315 SF1020 Alum

315/121

2.30/1.88

N/A

135/124

207/165

264/206

314/230

346/242

359/245

352/248

Flo-Teh 320 SF1020 Alum

320/128

2.30/1.88

133

146/109

217/149

269/177

303/203

322/223

337/233

337/239

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Flo-Tek 360 SF1020 Alum

360/135

2.30/1.88
4.31

121

149/118

206/161

265/193

316/220

355/241

375/260

377/264

Flo-Tek 375 SF1020 Alum

373-367/133

2.35/1.88
4.31

127

175/140

242/191

305/237

395/267

405/287

427/301

428/305

435/309

Flo-Tek 390 SF600 Alum

390/133

2.375/1.88
4.625

133

152/101

212/139

281/176

345/210

395/241

436/268

448/292

452/307

Flo-Tek 390 Bowl Blending SF600 Alum

390/133

2.375/1.88
4.625

133

153/107

215/146

283/181

350/212

403/244

444/285

463/308

467/323

HRD Ported Dart 360 Alum

365/-

2.30/1.88

N/A

157/132

235/177

288/225

341/270

386/302

412/321

424/328

430/333

HRD Ported Dart 360 16500000 Alum

N/A

165/132

247/177

302/225

358/270

405/302

433/321

445/328

452/333

HRD Dart Big Chief 3815 Ported

455/-

2.45/1.86

N/A

167/139

260/197

331/246

411/288

475/339

530/353

550/366

556/372

HRD Dart Big Chief 3815 Ported

444/-

N/A

394/265

444/305

475/353

504/366

514/372

Holley Alum

261/123

2.19/1.88

110

301/-

Holley Avenger Alum CHP

314/-

2.25/1.88
4.25
Pipe

119

71/60

137/122

199/171

251/207

292/233

315/252

330/264

340/269

Import / Speier Alum

338-342/-

2.30/1.88
4.60
No Pipe

N/A

157-160/120

235-237/170

295-296/208

325-339/235

350-354/252

360-365/263

370-373/271

375-373/276

382-373/280

Import / Speier CNC I-45 E-45 Alum

358/-

2.30/1.88
4.60
No Pipe

N/A

160-163/119

244-245/168

310-314/205

345-363/238

377-395/275

394-417/294

410-432/305

422-434/313

432-435/320

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Naiser Racing Components - Slick Rick Racing Heads 5.3 BS Billet Pro Mod Alum

N/A

2.70/1.95
-
No Pipe

N/A

238/162

333/205

426/250

502/290

561/325

598/350

627/367

640/378

651/380

660/-

665/-

Naiser Racing Components - Slick Rick Racing Heads SR1 5.3 BS Billet Pro Mod Alum

N/A

2.65/2.00
-
No Pipe

N/A

255/185

345/235

432/279

502/317

552/348

597/371

620/386

630/392

645/392

654/393

660/-

Patriot 320 Alum

320/125

2.25/1.88

119

86/64

177/148

252/195

295/231

326/256

359/269

369/275

Patriot 320 Weingartner Racing Alum

N/A

2.25/1.88
4.31
No Pipe

N/A

63-57/60

140-127/103

195-190/154

252-250/189

305-309/242

343-326/256

369-326/266

363-343/266

350-341/267

350-336/268

Patriot Freedom 360 Meaux Racing Cyl 3 SF600 Alum

N/A

2.35/1.88
4.50
No Pipe

N/A

160/139

237/183

290/226

337/256

358/265

371/271

381/274

389/274

395/274

Pro Comp 320 Alum

320/-

2.25/1.88
4.50

118

160/97

226/152

274/181

302/216

318/249

333/268

348/283

Pro Comp 320 CNC RaceParts Alum

N/A

2.25/1.88

115

74/62

166/118

245/160

308/195

340/229

360/248

375/265

Pro Comp 320 Out of Box Meaux Racing SF600 Alum

N/A

2.30/1.88
4.50
No Pipe

N/A

143-145/137

221-220/183

277-273/210

313-312/230

333-331/251

342/263

351-346/274

355-354/282

364-360/286

Pro Comp 320 VJ Bowl / Chamber Work Meaux Racing SF600 Alum

N/A

2.30/1.88
4.50
No Pipe

N/A

152-154/125

242/178

299-305/215

334-345/261

354-359/287

365-369/301

370-374/309

375/312

Pro Comp 360 CNC Alum

360/-

2.25/1.88

115

73/60

141/121

212/166

280/205

331/240

365/265

389/289

404/307

407/321

Pro Comp VJ SSR Polished them out Speier Racing Heads SF600 Alum

N/A

2.30/-
4.31

N/A

160/-

217-210/-

260-255/-

302-292/-

335-320/-

362-345/-

367-352/-

369-358/-

Pro-FilerP/N 174-29 24 Deg Alum

290/-

2.30/1.88

119

148/129

213/162

276/198

327/250

338/261

350/264

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Pro-Filer 290 Out of Box CNC Chambers Weingartner Racing Alum

290/-

2.25/1.88
4.13
No Pipe

N/A

76/61

146-143/114

210-208/158

261/188

311-308/224

344-329/249

353-314/259

344-325/268

344-330/273

337-331/276

Pro-Filer 290 24 Deg Darin Morgan Alum

290/-

2.30/1.88

119

155/-

235/-

296/-

350/-

379/-

382/-

385/-

387/-

390/-

Pro-Filer 290 Oval VJ Bowl Blend Dr Js Performance Alum

N/A

2.25/1.88
4.31
2" Pipe

118

82/69

163/117

236/160

295/193

335/224

355/251

358/268

Pro-Filer 290 Oval Dr Js Performance CCMAlum

290/78

2.30/1.88
4.30

118

84/69

165/117

236/160

295/193

335/224

356/251

368/268

Pro-Filer 290 Ported Foxwell Motorsports I-45 Alum

N/A

2.35/1.85

N/A

162-161/122

240-230/165

289-286/220

339-333/265

367-349/286

389-371/299

401-393/310

412-404/-

Pro-Filer 290 Oval Ported Speier Racing Heads Alum

N/A

2.25/1.88
4.155
No Pipe

119

168-170/120

231-233/157

285-290/193

333-337/220

352/247

361-357/259

363-359/264

361-362/269

358-364/271

Pro-FilerP/N 174 24 Deg Alum

290/-

2.28/1.88

119

142/129

212/162

271/198

323/235

365/255

378/265

380/268

Pro-FilerP/N 174-32 24 Deg Alum

320/-

2.30/1.88

119

164/129

228/162

288/198

337/236

379/250

395/261

392/264

390/268

Pro-FilerP/N 174-35 24 Deg Alum

350/-

2.30/1.88

119

165/129

230/162

290/198

340/235

380/250

400/261

412/264

Pro-FilerP/N 174X Alum

375/-

2.35/1.85

119

153/128

239/170

300/205

365/238

410/298

445/314

460/325

Pro-FilerP/N 224XL 24 Deg I50 E50 Alum

430/-

2.40/1.85

119

165/128

250/170

321/205

382/238

434/298

466/314

490/325

502/-

514/-

Pro-FilerP/N 184 12 Deg Alum

470/-

2.40/1.90

160/137

239/182

314/226

384/275

431/298

458/306

483/310

497/320

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Pro-Filer 12 Deg CNC MBE Alum

475/187

2.40/1.90

55.5

507/319

Pro-Filer NEW 2010 SniperX Conventional Port CNC Darin Morgan SF600 Alum

375/-

2.35/1.85
-
No Pipe

N/A

156/128

234/171

306/205

360-368/237

407-414/298

427-451/314

444-468/321

459-477/327

472-481/332

Pro-Filer SniperX Conventional Port Darin Morgan SF600 Alum

375/-

2.35/1.85
-
No Pipe

N/A

159/120

236-235/160

307-301/197

360-363/238

396-410/289

422-444/308

437-460/319

444-466/327

454-474/332

Pro-Filer Spread Port Darin Morgan SF600 Alum

N/A

2.40/1.88
-
No Pipe

N/A

161/88

250/130

327/167

401/181

449/192

482/203

496/208

503/212

513/217

Pro-FilerP/N 184X 490 12 Deg Alum

490/-

2.45/1.85

62/72/74

150/105

234/154

311/197

382/240

492/286

511/313

522/343

540/355

Pro-FilerP/N 184X 515 12 Deg Alum

515/-

2.45/1.85

62/72/74

155/130

234/183

311/238

390/293

450/325

511/348

541/368

555/380

561/388

ProMaxx 290 Alum

290/135

2.25/1.88

110

159/135

233/182

290/221

327/261

357/283

372/297

375/303

376/305

ProMaxx 317 As Cast Alum

317/-

2.25/1.88

119

151/120

230/162

292/197

338/238

367/254

379/260

372/270

379/270

ProMaxx Ported Foxwell Motorsports I-50 E-50 Alum

N/A

2.375/1.85
-
No Pipe

N/A

149-152/124

230-232/179

299/221

349-354/268

382-400/298

408-431/311

423-441/317

431-446/323

441-456/333

ProMaxx 317 AK Racing Bowl Work Marine VJ Alum

N/A

2.25/1.88
-
No Pipe

N/A

155/117

228/158

289/205

336/228

368/258

388/260

392/261

ProMaxx 317 Ported Weingartner Racing Alum

335/-

2.25/1.88
4.31
No Pipe

119

75/65

162/133

232/181

281/227

319/264

355/279

379/284

394/289

397/291

406/292

ProMaxx 337 Ported Straub Technologies Alum

337/-

2.35/1.85
4.60

119

162/112

244-247/166

302-307/221

362-358/266

398-382/296

414-396/309

424-409/319

430-414/329

432-419/336

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

ProMaxx 355 Ported Straub Technologies Alum

355/-

2.375/1.85
4.60

117-125

152/124

232-230/179

300-299/221

354-349/269

401-382/298

431-408/309

441-423/317

446-432/323

456-441/333

ProMaxx 340 Alum

340/-

2.30/1.88

121-127

172/139

267/190

318/236

358/265

383/285

398/300

409/304

413/307

ProMaxx Shocker 325 Oval Alum

325/130

2.30/1.88

112

168/152

239/200

301/243

349/277

377/298

396/314

413/320

419/326

ProMaxx Shocker 340 Alum

340/135

2.30/1.88

121

177/148

271/195

323/243

365/270

387/289

400/307

412/310

415/312

417/315

ProMaxx Shocker 370 Alum

370/135

2.35/1.88

121

178/148

255/195

317/243

398/270

415/289

431/307

437/310

442/312

449/315

Pro Topline 260 Oval Gamrace

260/-

2.19/1.88
4.30
No Pipe

N/A

175/128

218/140

236/149

251/153

255/154

Pro Topline 260 Oval Ported Gamrace Stage 1

260/-

2.19/1.88
4.30
No Pipe

N/A

205/142

265/169

302/192

302/209

297/225

Pro Topline 300 Ported ET Performance Alum

300/-

2.30/1.80
4.60

120

78-77/63

153-150/133

226-221/167

287-287/199

332-333/223

364-383/239

379-400/250

387-390/-

Pro Topline 320 Alum

320/135

2.25/1.88

119

74/62

166/118

245/160

308/195

339/229

360/248

374/265

Pro Topline 320 Out of Box Alum

320/135

2.25/1.88
4.50

119

83/66

152/138

218/173

278/200

333/232

364/256

375/273

Pro Topline 325 Ported ET Performance Alum

325/-

2.30/1.80
4.50

125

73-72/62

155-156/120

237-238/156

296-301/211

338-351/242

367-385/258

386-399/269

399-405/277

Pro Topline 355 Ported ET Performance Alum

355/-

2.30/1.80
4.625

120

76-78/64

160-160/122

243-240/167

305-307/205

354-367/239

379-400/264

398-417/284

412-419/297

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Pro Topline 360 Alum

360/135

2.30/1.88

119

75/62

158/118

230/160

286/195

342/229

380/248

403/265

Pro Topline 400 Ported ET Performance Alum

400/-

2.35/1.80
4.50

125

78-78/67

154-155/123

238-238/160

305-304/198

352-358/228

382-401/266

406-426/292

422-433/303

Reher Morrison Dart 360 Alum

375/-

2.30/1.88

N/A

415/-

Reher Morrison Dart 360 Alum

N/A

2.30/1.88
4.60

118

350/-

420/290

Reher Morrison Dart 360 Alum

N/A

2.325/1.88
4.60

118

360/-

430/300

Reher Morrison Dart 360 Alum

370/-

2.325/1.88
4.60

N/A

435/-

Reher Morrison Oval 14 Deg

N/A

2.45/1.85

N/A

400/-

500/-

Reher Morrison 14 Deg

467/-

2.45/1.85

N/A

520/-

Reher Morrison 14 Deg

476/-

2.45/1.85

N/A

510/-

520/-

Reher Morrison 18 Deg

476/-

2.40/1.90

N/A

490/-

505/-

520/-

Reher Morrison Brodix BB-2Plus 26 Deg Alum

320/-

2.25/1.88

119

161/132

244/169

285/204

328/234

359/261

369/274

373/284

Reher Morrison Brodix BB-2 26 Deg Alum

N/A

2.30/1.88

N/A

154/157

222/201

286/233

324/258

360/275

380/286

385/292

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Reher Morrison Brodix BB-2Xtra 26 Deg Alum

355/-

2.30/1.88

119

183/134

235/177

294/216

340/247

376/268

395/279

408/288

Reher Morrison Raptor 12 Deg Alum

465/-

2.45/1.85

423/-

525/-

535/-

540/-

Reher Morrison Raptor - Darin Morgan SF600 Alum

N/A

2.45/1.85
-
No Pipe

N/A

153/135

258/190

346/240

422/289

485/315

514/330

526/336

540/339

550/340

Reher Morrison Raptor II - Darin Morgan SF600 I-50 E-50 Alum

480/-

2.45/1.85
4.625
No Pipe

155-161/134

245-243/182

345-350/223

425-427/257

489-487/286

519-515/316

538-527/340

544/354

547-552/358

Reher Morrison 5.3 BS Pro Mod Darin Morgan SF600 Alum

N/A

2.68/2.05
-
No Pipe

N/A

171/125

275/182

374/228

456/274

521/319

568/352

609/374

639/393

659/403

678/413

687/417

698/419

RHS Pro Action Iron

320/-

2.25/1.88

119

75/62

166/118

246/160

309/195

340/229

360/248

375/265

RHS Out of Box Weingartner Racing Iron

N/A

2.25/1.88
4.50
No Pipe

N/A

86/70

183/139

252/176

303/205

334/231

341/243

346/258

346/264

RHS 320 Out of Box Weingartner Racing Brez Iron

N/A

2.25/1.88
4.31
No Pipe

N/A

86/66

167/133

237/173

288/206

328/227

350/246

359/255

355/261

RHS 320 Ported Bowl Weingartner Racing Brez Iron

N/A

2.25/1.88
4.31
No Pipe

N/A

163/136

240/180

281/212

327/242

361/261

365/267

373/271

RHS 320 VJ Bowl Blend Foxwell Motorsports Iron

N/A

2.25/1.88

N/A

149/105

218/144

280-278/183

327-328/215

350-357/237

362-357/253

367-357/266

RHS 360 Weingartner Racing I-BC Iron

N/A

2.30/1.88
4.625
No Pipe

N/A

70-68/56

145-138/112

215-207/154

285-277/190

339-333/218

375-351/235

378-356/249

381-363/261

383-371/268

387-375/273

RHS Pro Action Westech Alum

320/-

2.25/1.88

N/A

72-72/60

131-129/114

191-186/156

248-238/193

296-286/224

320-330/252

328-356/276

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

RHS Pro Action

360/-

2.30/1.88

119

75/62

158/118

230/160

286/195

342/229

380/248

403/265

RHS ProTopLine Ported Meaux Racing Iron

N/A

2.30/1.88
4.50
No Pipe

N/A

154/124

236/171

290/207

319/229

340/245

350/256

356/264

359/268

362/271

RHS ProTopLine Ported Meaux Racing Iron

N/A

2.30/1.88
4.50
No Pipe

N/A

147/139

232/179

294/224

328/271

354/297

376/309

390/318

397/320

405/322

RHS Speier Racing Heads V3.93 I-50 E-50 Iron / Alum

N/A

2.35/1.88
4.60
No Pipe

120

155-151/118

232-230/162

310-303/194

367-354/227

406-383/256

424-410/278

437-429/294

440/308

444-443/316

448-445/318

RHS Speier Racing Heads V4.20 I-50 E-45 Iron

395/-

2.35/1.88
4.50
No Pipe

118

157-160/125

240-244/161

307-308/200

361-366/230

412-402/255

437-430/280

442-433/296

447-442/310

457-446/316

RHS Speier Racing Heads I-50 E-50 Iron

N/A

2.35/1.88
4.60
2.25 Pipe

N/A

155-158/132

234-237/184

301/223

353-351/262

402-388/262

432-417/291

441-430/310

446-439/323

454-451/329

459-455/333

Sonny's Brodix BB-5 Sportsman Alum

395/123

119

418/275

Sonny's Brodix BB-5 MaxFlow Alum

406/149

113.5.

-/311

439/-

Sonny's Brodix BB-5 MaxFlow Marine Alum

406/149

2.35/1.90

113.5.

383-405/295

401-418/303

Sonny's Brodix BB-5 400 MaxFlow Alum

400/149

2.35/1.90

113.5.

-/311

445/-

Sonny's Dart 360 Ported Alum

N/A

413/297

Sonny's Dart 18 Deg Ported SF600 Alum

N/A

2.35/1.86

N/A

437/339

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Sonny's / Brodix PB 2005 14.5 Deg Alum

490/-

2.52/1.86

129/111

199/156

287/196

334/231

431/258

482/274

517/287

540/293

Sonny's / Brodix PB 2005 14.5 Deg Lt Ported Alum

493/175

2.52/1.86

153/132

241/187

323/227

395/258

452/289

499/326

517/338

540/343

Sonny's Brodix 14.5 Deg SF600 Alum

548/204

2.52/1.86
4.625

73-77

555/378

Sonny's Brodix 14.5 Deg Pontiac CNC SF600 Alum

548/204

2.48/1.92
4.60

548/378

Sonny's Brodix 14.5 Deg Pontiac Marine Alum

494/184

2.48/1.90
4.60

N/A

514/-

538/-

Sonny's Hemi Alum

N/A

2.55/1.96

65-95

570/390

Sonny's Hemi Alum

N/A

2.55/2.00

65-95

570/400

Sonny's Hemi Alum

N/A

2.66/2.00

560/375

Sonny's Hemi Alum

N/A

2.66/2.00

N/A

610/422

Sonny's Hemi Flowed Bill Jones Alum

N/A

2.685/2.00

N/A

72/58

140/121

223/160

307/176

379/229

459/286

516/346

548/377

568/403

590/421

610/433

627/437

Sonny's Hemi 5.0 Inch BS Alum

N/A

2.68/2.04

N/A

615/425

Sonny's Hemi 5.3 Inch BS Alum

N/A

2.80/2.10

N/A

700/480

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Sonny's Hemi 5.x Inch BS Alum

680/240

2.90/2.10

N/A

740/475

Sonny's Symmetrical 5.0 Inch BS SF1020 Alum

650/350

2.75/2.00

N/A

-/450

660/-

Sonny's Symmetrical 5.3 Inch BS SF1020 Alum

N/A

2.75/2.00

N/A

-/450

660/-

Sonny's Symmetrical 5.3 Inch BS 16 x 5 Deg Alum

737/290

2.725/2.05

N/A

-/462

700/-

Sonny's Symmetrical 16 x 5 Deg 5.0 Inch BS Billet Alum

540/236

2.52/1.93
4.67

562/400

Sonny's Symmetrical 16 x 5 Deg 5.0 Inch BS Alum

570/236

2.52/1.93
4.67

562/400

Sonny's Symmetrical 13 x 5 Deg Alum

574/236

2.55/1.93
4.75

74-75

550/375

580/407

Sonny's Symmetrical 13 Deg Marine Alum

547/221

2.52/1.90
4.67

536/366

556/381

Sonny's 11 Deg Alum

N/A

2.65/1.89
4.75

N/A

605/395

Sonny's 11 x 7 Deg 5.0 Inch BS Alum

N/A

2.62/1.90

N/A

590/400

Sonny's 5.0 Inch BS Alum

574/236

2.55/1.93
4.75

580/407

Sonny's 5.0 Inch BS Alum

N/A

2.65/1.89
4.75

N/A

247/185

327/249

404/291

476/326

537/359

578/378

610/402

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Steve Schmidt Pro-Filer 12 Deg

N/A

2.40/1.88

N/A

495/365

518/376

Steve Schmidt Pro-filer 12 Deg Nitrous

N/A

515/390

525/405

525/412

Steve Schmidt Pro-Filer 24 Deg Alum

336/-

2.30/1.88

N/A

415/303

Trick Flow Oval SF600 Alum

280/129

2.19/1.88
4.25
2" Pipe

113

74/64

160/113

231/146

275/178

316/209

336/240

347/264

Trick Flow Oval CCM Alum

280/-

2.30/1.88
-
Pipe

113

69/61

141/126

209/159

260/192

292/221

318/246

325/264

Trick Flow Oval CNC Inlet & Bowl Blend Alum

280/129

2.19/1.88
-
Pipe

113

74/64

160/113

231/146

275/178

316/209

336/240

347/264

Trick Flow R CNC Bowl Blend SF600 Alum

320/137

2.25/1.88
4.50
2" Pipe

122

75/64

155/125

230/166

282/202

320/241

348/270

360/290

362/301

Trick Flow CNC SF600 Alum

320/137

2.25/1.88
-
No Pipe

121

73/64

146-145/118

222-220/160

279-276/188

318-315/215

342-339/238

359-352/258

363-356/268

Trick Flow CNC 320 Weingartner Racing Alum

N/A

2.25/1.88
4.31
No Pipe

N/A

150-149/120

220-213/160

266-263/196

309-308/230

339-330/255

354-347/267

362-357/274

367-362/282

362-373/283

Trick Flow CNC 320 Weingartner Racing Alum

N/A

2.25/1.88
4.625
No Pipe

N/A

149-151/121

225/159

274-277/196

323-315/230

348-338/253

357/265

355-370/273

362-378/278

367-381/282

Trick Flow 320 Ported Weingartner Racing Alum

365/-

2.35/1.88
4.625
No Pipe

119

75/61

165/123

228/153

292/183

352/212

379/242

399/260

406/275

417/283

418/290

Trick Flow R CNC Bowl Blend SF600 Alum

340/137

2.25/1.88
-
Pipe

122

77/64

160/125

230/166

283/202

323/241

350/270

366/290

370/301

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Trick Flow R CNC Bowl Blend SF600 Alum

360/137

2.30/1.88
4.50
2" Pipe

122

75/64

151/125

227/166

283/202

325/241

362/270

382/290

390/301

World Oval Port Iron CHP

260/-

2.25/1.88

119

71/50

145/105

205/146

243/173

267/190

280/203

282/209

283/214

World 02003 Kendrick Auto Alum

310/-

2.25/1.88

116

81/70

151/115

223/179

276/179

308/192

317/198

321/201

World 02003 Ported Kendrick Auto Alum

310/-

2.25/1.88

116

87/71

160/123

230/186

288/187

323/211

348/240

353/253

World 03003 Kendrick Auto Iron

310/-

2.25/1.88

N/A

72/70

151/120

229/152

273/182

308/195

321/201

326/206

World 03003 Ported Kendrick Auto Iron

310/-

2.25/1.88

N/A

90/70

172/119

258/170

285/194

326/221

353/240

368/256

World Merlin Ported Bullet Cylinder Heads

N/A

2.19/1.88

N/A

80/72

153/121

214/163

253/202

303/233

334/250

354/263

World Merlin Iron CHP

310/-

2.25/1.88
4.25
2.25" Pipe

N/A

158/100

216/141

258/175

292/193

313/207

325/213

327/222

World Merlin Alum CHP

310/132

2.25/1.88
4.25
2.25" Pipe

N/A

144/129

217/173

269/195

289/207

296/214

305/214

312/214

World Merlin II Weingartner Racing Brez

N/A

2.30/1.88
4.31
No Pipe

N/A

79/57

159/104

237/150

282/186

330/212

354/229

366/240

353/255

World Merlin 269 SF600 Iron

269/137

2.19/1.88
-
No Pipe

119

75/65

144/121

213/165

275/202

323/239

352/262

355/274

341/282

World Merlin 310 SF600 Iron

310/137

2.30/1.88
-
No Pipe

119

79/59

144/99

208/151

267/193

321/232

363/259

383/276

374/286

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

World Merlin 345 SF600 Iron

345/137

2.30/1.88
-
No Pipe

119

77/60

145/102

213/159

271/204

326/239

366/261

389/275

374/284

World Merlin 320 SF600 Alum

320/-

2.30/1.88
-
No Pipe

119

77/69

148/120

218/155

278/185

320/215

352/242

372/263

375/280

World Merlin 345 SF600 Alum

345/-

2.30/1.88
-
No Pipe

119

82/71

153/108

221/151

284/184

331/217

369/245

399/267

414/284

World Merlin 350 CNC SF600 Alum

350/135

2.30/1.88
-
No Pipe

119

82/68

149/120

220/156

288/200

340/242

381/269

413/295

426/313

World Merlin III Oval SF600 Iron

269/137

2.30/1.88
-
No Pipe

119

316/290

World Merlin III Oval SF1200 Iron

269/137

2.30/1.88
-
No Pipe

119

293/268

World Merlin III SF600 Alum

310/132

2.30/1.88
-
No Pipe

119

400/290

World Merlin III SF1020 Alum

310/132

2.30/1.88
-
No Pipe

119

372/268

World Merlin III SF600 Alum

350/132

2.30/1.88
-
No Pipe

119

410/303

World Merlin III SF1020 Alum

350/132

2.30/1.88
-
No Pipe

119

382/280

World Merlin III CNC SF600 Alum

350/132

2.30/1.88
-
No Pipe

119

434/321

World Merlin III CNC SF1020 Alum

350/132

2.30/1.88
-
No Pipe

119

405/297

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

World Merlin III CNC SF600 Alum

375/132

2.30/1.88
-
No Pipe

119

440/324

World Merlin III CNC SF1020 Alum

375/132

2.30/1.88
-
No Pipe

119

410/300

World Merlin X 345 16 Deg SF600 Alum

345/132

2.35/1.88

77/64

134/107

187/148

245/183

303/214

349/238

379/254

392/265

World Merlin X 345 16 Deg CNC SF600 Alum

350/132

2.35/1.88

68/56

143/126

228/177

299/205

349/231

391/255

415/273

451/286

World Jenkins Merlin

N/A

2.25/1.88

N/A

73/66

144/129

217/173

269/195

289/207

296/214

305/214

312/215

World Jenkins Alum

345/-

2.30/1.88

117

298/212

330/230

360/230

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

348 Iron

N/A

1.94/1.66

N/A

155/135

195/148

200/155

203/160

203/163

348 Iron

N/A

2.055/1.66

N/A

56/49

108/85

158/120

190/143

201/156

205/161

210/163

Hi-Po 348 Iron

N/A

2.06/1.72

N/A

210/-

Hi-Po Iron

N/A

2.203/1.734

N/A

260/-

L80 Iron

N/A

2.19/1.72

N/A

277/195

690 '63 John Goodman Iron

N/A

2.19/1.72

N/A

68/48

131/99

192/141

228/167

252/180

267/182

274/-

690 Skip Fix Cleaned Up Iron

N/A

2.19/1.72

N/A

142/86

211/121

255/150

268/170

277/180

Hi-Po 3814690 / L80 Ported Superior Automotive CCM SF600 Iron

N/A

2.25/1.725

N/A

203/154

300/236

Hi-Po Ported Iron

N/A

91/-

148/-

211/-

267-

280-

300/-

305/225

307/-

309/-

Edelbrock Alum

N/A

2.19/1.72
4.31

N/A

138/98

210/135

246/168

259/190

269/201

274/209

Edelbrock 60819 CNC Alum

220/115

2.19/1.72
4.31

67/60

148/118

221/157

256/184

266/204

273/216

277/221

Edelbrock Performer RPM 60809 SF1020 Alum

215/115

2.19/1.72

N/A

65/52

130/96

192/127

235/163

258/182

260/190

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Edelbrock Performer RPM 60809 Alum

220/90

2.19/1.72

N/A

73/62

143/118

203/158

239/185

260/205

272/217

285/222

Edelbrock Ported Calvin Hill Saenz J-600 Alum

N/A

2.19/1.72
4.32

N/A

86/73

178/121

245/161

283/204

312/242

315/260

310/272

Edelbrock John Goodman Alum

N/A

2.19/1.72

N/A

69/53

144/117

211/161

257/194

279/218

285/227

287/229

Edelbrock John Goodman Ported Alum

N/A

2.19/1.72

N/A

68/57

141/119

211/164

266/192

296/221

305/236

312/242

316/245

409Raceparts Mild Port Cleanup Alum

N/A

91/78

148/119

211/152

267/179

288/198

300/210

305/218

307/226

409Raceparts Race Ported Alum

N/A

2.25/1.88

N/A

77/73

145/124

217/171

280/201

323/223

349/236

359/245

362/252

409Raceparts Ported Alum

N/A

2.25/1.88

N/A

101/73

178/124

251/171

303/201

330/223

341/236

353/245

360/252

409Raceparts Ported Fast Fred Alum

N/A

2.25/1.88
4.35
No Pipe

N/A

86/90

163/153

237/200

298/232

334/261

343/287

352/292

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Chrysler 2.2 445

N/A

Stock

N/A

53/39

103/75

140/97

156/113

165/123

Chrysler '93-94 782

N/A

40mm/ 35mm

N/A

42/39

81/76

109/93

130/106

143/112

Chrysler Swirl

N/A

1.60/1.39

N/A

98/78

125/103

145/122

157/128

Chrysler Swirl Ported

N/A

1.60/1.39

N/A

157/121

177/132

Chrysler Swirl Ported

N/A

100/91

137/111

165/129

185/143

Chrysler "G"

N/A

1.60/1.39

N/A

49/38

98/79

131/106

152/119

163/124

Chrysler "G" Ported Welded

N/A

55/53

108/97

153/129

177/160

195/175

210/184

Chrysler Slant 6

-/71

N/A

-/42

-/74

-/98

-/116

-/121

-/124

Chrysler Slant 6 Ported Pacer

-/79

1.72/1.50

N/A

58/55

111/95

156/124

184/141

195/147

-/154

Chrysler Slant 6 Ported

N/A

1.88/1.50

N/A

58/46

121/102

146/124

185/139

195/161

203/163

CHI HEMI 6 Alum

N/A

2.02/1.60

N/A

63/56

135/112

190/134

231/172

266/194

276/205

Chrysler 318 Poly Gary Pavlovich Iron

N/A

1.84/1.56

N/A

50/45

116/83

149/106

171/126

183/150

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Chrysler 318 Poly Ported Gary Pavlovich Iron

N/A

69/48

145/88

188/113

202/134

211/159

218/164

Chrysler Poly Pocket Ported Iron

N/A

1.845/1.565

N/A

228/160

Chrysler 318 Poly Ported Iron

N/A

1.94/1.625

N/A

75/63

158/105

218/130

241/171

250/192

260/201

264/205 @ .650

Chrysler 3.5l v6 Frank Racing

N/A

36.5mm/ 29mm

N/A

91/53

164/125

213/163

227/168

234/174

Chrysler 3.5l v6 Ported Stage 1 Frank Racing

N/A

36.5mm/ 29mm

N/A

94/75

184/144

252/178

290/180

295/184

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

11mm

12mm

13mm

14mm

Average

Avenger MORGO Systems

N/A

48/39

84/72

129/108

164/126

169/135

178/136

178/137

177/138

Avenger Ported MORGO Systems

N/A

50/46

95/74

138/114

169/133

192/148

197/151

201/154

206/156

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Jeep 2686 Greg Friedman Iron

N/A

1.91/1.50

N/A

122/88

168/114

186/130

189/134

192/138

Jeep 2686 Iron

N/A

1.91/1.50

N/A

129/93

178/121

197/137

200/142

203/146

Jeep 2686 Ported Iron

N/A

1.91/1.50

N/A

131/92

194/120

208/146

219/162

229/168

Jeep HO 0630 - 7120 Iron

N/A

1.91/1.50

N/A

135/106

189/127

218/144

221/149

Jeep HO 0630 - 7120 John Brown Iron

N/A

1.91/1.50

N/A

66/55

128/100

179/120

206/136

209/141

Jeep 4.0 NH2-J07-7120-D-93 Reconditioned Head Out of Box Bill Jones Iron

N/A

1.91/1.50
-
No Pipe

N/A

65/48

115/89

170/114

200/124

210/127

Jeep 4.0 NH2-J07-7120-D-93 Reconditioned Head Ported Bill Jones Iron

N/A

1.91/1.50
-
No Pipe

N/A

65/60

128/102

183/126

223/144

244/149

Jeep 4.0 7120 Ported Russ Pottenger Alum

N/A

2.00/1.55

N/A

75/60

138/106

194/153

235/181

261/193

276/198

Jeep HO 0331 Iron

N/A

1.91/1.50

N/A

59/47

123/93

171/123

201/141

214/147

218/150

Jeep HO 0331 Iron

N/A

1.91/1.50

N/A

120/99

175/124

205/133

211/138

217/141

Jeep HO 0331 FWM Iron

N/A

1.91/1.50

N/A

119/82

173/111

191/132

211/141

Jeep HO 0331 Modified FWM Iron

N/A

1.91/1.50

N/A

70/58

128/106

190/127

211/144

221/162

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Jeep HO Ported Clearwater Cyl. Heads Iron

N/A

2.02/1.60

N/A

78/69

151/121

209/144

243/155

261/166

Jeep 4.0 Dr Js performance Iron

N/A

1.91/1.50

N/A

64/60

132/99

179/126

206/141

210/149

208/154

208/157

Jeep 4.0 Ported Dr Js performance Iron

N/A

1.91/1.50

N/A

67/60

137/101

190/133

227/164

237/182

239/197

239/205

Jeep 4.0 Bill Jones Iron

N/A

1.91/1.50
-
No Pipe

N/A

62/45

120/85

168/113

198/124

198/127

Jeep 4.0 Bill Jones Bowl Blend, Light Port Cleanup Iron

N/A

1.91/1.50
-
No Pipe

N/A

62/46

122/85

176/116

211/136

218/149

Jeep 4.0 Bill Jones Above plus VJ Back Cut and Blend Iron

N/A

1.91/1.50
-
No Pipe

N/A

65/56

126/91

180/125

221/141

218/157

Edelbrock 50169 4.0 Alum

159/77

1.91/1.50

60/63

123/103

179/127

221/144

241/151

237/155

Edelbrock EDL-50169 4.0 Russ Pottenger Alum

N/A

1.91/1.50

N/A

58/61

132/104

187/124

225/152

246/157

243/160

Edelbrock EDL-50169 4.0 Ported Russ Pottenger Alum

N/A

1.97/1.55

N/A

72/62

144/117

199/168

246/192

275/204

302/211

Patriot Performance Jeep 4.0 / 4.2 Alum

N/A

1.90/1.50

250/147

Hesco Alum

138/76.4

1.90/1.55

59.6

74/55

134/93

183/117

226/131

255/142

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.450

.500

.600

.700

.800

Average

Chrysler Neon 2.0 1 st Gen CCH

N/A

Stock

N/A

214/132

Chrysler Neon 2.0 1 st Gen Ported CCH

N/A

Stock

N/A

251/165

Chrysler Neon SOHC

N/A

33.25mm/ 28.75mm
-
No Pipe

N/A

223/116

Chrysler Neon SOHC

N/A

33.25mm/ 28.75mm

N/A

171/111

211/116

229/119

234/121

237/123

240/125

Chrysler Neon SOHC '94-00 CNC M2 Race Systems

N/A

35.25mm/ 25.7mm
3.575

N/A

177/139

235/165

255/177

268/190

275/195

Chrysler Neon SOHC Ported Mike

N/A

243/175

Chrysler Neon DOHC Mike Alum

N/A

34.75mm/ 30.5mm

N/A

77/80

160/147

219/163

243/165

250/165

Chrysler Neon DOHC Ported Mike Alum

N/A

34.75mm/ 30.5mm

N/A

94/82

178/146

247/201

274/218

279/233

Chrysler Neon DOHC Ported Mike Alum

N/A

34.75mm/ 30.5

N/A

95/86

184/166

257/208

270/222

301/237

Chrysler 2.0 NEON DOHC Alum

N/A

34.75mm/ 30.5

N/A

92/88

173/151

232/166

252/170

257/171

Chrysler Neon SRT-4 JM Cylinder Heads SF600 Alum

N/A

34.75mm/28.4mm

95/78

168/148

212/169

233/171

234/171

Chrysler Neon SRT-4 Ported Stage 2 JM Cylinder Heads SF600 Alum

N/A

36mm/30.5mm

95/91

174/207

228/226

258/235

267/238

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.450

.500

.600

.700

.800

Average

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Chrysler '97 Viper

214/70

1.92/1.58

61/54

118/115

167/155

203/180

229/185

242/187

Chrysler Viper Ported Hennessey

N/A

62/-

122/-

179/-

228/-

261/-

274/-

Chrysler Viper Ported Caldwell

N/A

61/59

125/116

178/170

214/204

247/210

270/214

Chrysler Viper BTR Base Port

N/A

1.92/1.52

N/A

122/-

162/-

198/-

226/-

237/-

Chrysler Viper BTR Perf Stage I

N/A

1.92/1.58

N/A

122/-

168/-

207/-

230/-

245/-

Chrysler Viper BTR Perf Stage II

N/A

2.02/1.60

N/A

122/124

174/163

221/195

259/204

276/211

Chrysler '96-02 Viper CNC M2 Race Systems

249/-

2.02/1.60
4.03

60/47

121/112

176/162

219/200

261/212

293/217

Chrysler '02 Viper Ported ET Performance

N/A

2.04/1.60
4.03

69/56

133/121

197/172

242/203

269/213

288/218

286/220

Chrysler '03 Viper Ported ET Performance

N/A

2.04/1.60
4.03

68/60

138/121

216/174

264/202

282/212

301/217

309/219

Chrysler '08 Viper Greg Good Bowls and Chamber Ported

N/A

2.08/1.60

N/A

160/117

240/177

294/217

334/237

336/248

328/252

Chrysler Viper Gen I ('92-'96) JM Cylinder Heads SF600

N/A

1.92/1.58

N/A

64/50

122/107

173/146

208/170

220/181

218/187

Chrysler Viper Gen I ('92-'96) Ported JM Cylinder Heads Stage 3 SF600

N/A

2.04/1.60

68/56

138/119

197/163

240/207

272/231

279/240

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Chrysler Viper Gen I Ported Greg Good

N/A

135/121

202/165

243/205

282/226

305/235

Chrysler Viper Gen II ('96-'02) JM Cylinder Heads SF600

N/A

1.92/1.58

N/A

61/50

119/117

162/154

193/180

218/185

228/189

Chrysler Viper Gen II ('96-'02) Ported JM Cylinder Heads Stage 3 SF600

N/A

2.04/1.60

67/57

133/119

194/171

239/201

266/211

288/219

Chrysler Viper Gen II Ported Louthan Stage 3

N/A

2.02/1.60

N/A

280/-

Chrysler Viper Gen II Ported Greg Good FI

N/A

134/114

192/162

243/197

282/214

302/223

Chrysler Viper Gen III ('03-)JM Cylinder Heads SF600

N/A

2.00/1.58

N/A

66/53

136/113

195/155

237/174

258/182

268/185

Chrysler Viper Gen III ('03-)Ported JM Cylinder Heads Stage 3 SF600

N/A

2.04/1.60

68/60

138/123

216/185

264/211

287/224

301/231

Chrysler Viper Gen III Ported Port Pros Stage 3

N/A

2.04/1.60

N/A

75/60

140/123

190/175

241/215

281/235

322/242

Striker Street Gen II Gen III JM Cylinder Heads Stage 3

N/A

2.04/1.60

N/A

72/55

150/115

218/165

269/201

304/222

326/229

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 051 Iron MMM

158/66

N/A

50/49

113/97

165/123

188/133

193/137

189/137

Chrysler 915 360 Mr_340 Iron

160/70

1.88/1.60

N/A

118/85

166/119

190/126

196/129

193/133

Chrysler 915J Iron HPMM

156/73

2.02/1.60

N/A

66/63

123/110

170/135

206/145

220/148

216/148

Chrysler 915J Ported I-Nailhead E-Tulip SF600 Iron

192/-

2.02/1.60

N/A

66/46

134/90

191/128

238/157

271/170

283/176

Chrysler 915 Ported Iron

N/A

2.02/1.60

N/A

62/58

134/115

190/141

233/158

259/172

274/182

Chrysler 915 Ported BJR Racing Iron

N/A

1.88/1.60
-
No Pipe

N/A

91/89

184/133

222/176

239/191

283/196

276/201

Chrysler J

N/A

2.02/1.60

N/A

62/47

112/99

157/128

193/137

200/140

201/141

Chrysler J Ported Shady Dell Speed Shop

N/A

2.02/1.60
4.25
No Pipe

N/A

62/52

135/103

199/135

240/159

258/183

255/186

Chrysler 974 Cleaned and milled IQ52 Iron

N/A

1.88/1.60
-
Pipe

N/A

58/50

115/92

173/132

202/143

208/145

Chrysler 974 Cleaned and milled IQ52 11/32 SS Iron

N/A

2.02/1.60
-
Pipe

N/A

65/50

132/103

184/131

207/143

210/146

Chrysler 974 11/32 Nailhead w undercut stem Iron

N/A

1.94/1.60

N/A

128/103

191/146

229/169

241/180

240/199

Chrysler 894 X 11/32 w undercut stem

N/A

2.02/1.60

N/A

131/110

191/137

238/152

262/188

271/191

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 340 std. Iron

160/70

2.02/1.60

189/142

Chrysler 340 X 894 Iron MMM

158/73

N/A

58/45

125/95

172/122

208/135

221/140

210/142

Chrysler 587 360 Mr_340 Iron

160/70

1.88/1.60

N/A

110/90

165/117

190/135

190/140

185/141

Chrysler 587 360 Mr_340 Iron

N/A

2.02/1.60

N/A

127/97

181/128

213/143

215/147

Chrysler 587 340 Iron

160/70

1.88/1.60

63.3

214/136

213/142

Chrysler 587 340 Iron CCM

160/70

1.88/1.60
-
No Pipe

63.3

52/46

107/87

162/112

195/121

191/124

192/126

Chrysler 587 340 Ported Iron HPMM

N/A

1.88/1.60
-
No Pipe

N/A

63/57

126/95

181/132

230/138

253/160

241/179

Chrysler 308 360 Iron

160/68

1.88/1.60

201/142

209/147

204/147

Chrysler 308 360 Iron

160/68

1.88/1.60

N/A

54/52

108/100

164/135

195/152

208/157

Chrysler 308 Iron

N/A

1.88/1.60
-
No Pipe

N/A

54/45

117/87

164/126

195/150

207/162

Chrysler 308 360 - Hughes Stage I Ported Iron

172/-

N/A

245/-

Chrysler 308 360 - Hughes Stage II Ported Iron

195/-

N/A

265/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler MP 5249574 / 579 Bowl Blend - Intake Gasket Matched BJR Racing

N/A

2.02/1.60
-
No Pipe

N/A

84/84

161/119

207/145

241/185

255/192

241/192

Chrysler Truck Magnum Iron

N/A

1.92/1.625

N/A

131/97

186/132

212/145

212/146

214/147

215/147

Chrysler Truck Magnum Ported Shady Dell Speed Shop Iron

N/A

1.92/1.625

N/A

133/116

196/157

225/172

250/177

259/181

260/181

Chrysler 137 360 Magnum CCM

153/-

1.92/1.625

60/54

118/99

165/131

195/137

209/138

205/138

Chrysler Magnum BJR Racing

N/A

1.92/1.625
-
No Pipe

N/A

84/80

132/118

201/134

226/134

235/134

236/134

Chrysler Magnum Ported BJR Racing

N/A

1.92/1.625
-
No Pipe

N/A

84/84

139/130

201/190

231/192

246/190

252/190

Chrysler 576 360 High Swirl CCM Iron

160/68

2.02/1.60

62/55

112/99

160/119

182/126

192/128

187/130

Chrysler 302 318 Swirl

160/68

1.78/1.50

N/A

105/71

152/104

187/113

190/117

190/120

Chrysler 302 318 Swirl

160/68

1.78/1.50
-
No Pipe

N/A

92/71

130/104

164/113

170/117

172/120

Chrysler 302 318 Swirl Ported Shady Dell Speed Shop

151/-

2.02/1.60
4.25
No Pipe

N/A

148/86

212/114

241/131

247/140

241/145

Chrysler 302 Ported Hughes Engines

N/A

2.02/-

N/A

70/-

141/-

202/-

239/-

268/-

250/-

Chrysler 302 Full Ported Hughes Engines

N/A

2.055/-

N/A

67/-

127/-

187/-

241/-

285/-

298/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 302 Flowtech - Steven Magnotti SF110 Alum

N/A

1.88/1.617

N/A

50/42

109/97

164/118

177/146

190/163

198/-

Chrysler 596 '78 360 Iron CCM

158/66

65.5

53/48

107/89

159/114

185/121

199/123

193/124

Chrysler 596 Iron

158/66

1.88/1.60

N/A

63/48

117/98

174/121

193/126

192/128

Chrysler 596 Ported Shady Dell Iron

N/A

1.88/-

N/A

59/-

120/-

183/-

226/-

241/-

249/-

Chrysler 596 Hughes Iron

N/A

1.88/1.60

N/A

66/51

89/103

136/131

184/140

184/141

Chrysler 596 Ported / Stealth Hughes Iron

N/A

2.02/1.60

N/A

71/80

144/124

192/149

226/160

223/168

Chrysler Magnum Hughes

N/A

1.92/1.62

N/A

51/55

121/109

181/148

207/171

209/176

208/178

Chrysler Magnum 360

N/A

1.925/1.625

N/A

121/109

181/148

207/170

209/176

Chrysler Magnum 360 Ported ET Performance

177/-

1.955/1.625
4.155

N/A

66/51

127/102

174/140

218/169

249/186

Chrysler 140 Magnum R/T CCM

180/71

1.925/1.625

70/62

137/111

181/142

209/163

211/168

211/171

Chrysler 140 Magnum R/T MMM

N/A

1.92/1.625
-
No Pipe

N/A

60/56

123/107

173/150

205/170

219/177

223/180-

220/-

Chrysler 140 Magnum R/T Blend Bowl to VJ MMM

N/A

1.92/1.625
-
No Pipe

N/A

62/55

125/108

177/149

217/173

238/183

246/187

242/189

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 140 Magnum R/T Full Port MMM

N/A

1.92/1.625
-
No Pipe

N/A

66/59

128/116

178/155

222/179

246/204

264/213

271/217

Chrysler Magnum R/T Shady Dell Speed Shop

N/A

1.92/1.625
-
No Pipe

N/A

136/110

195/155

227/173

239/179

245/182

241/183

Chrysler Magnum R/T Ported Shady Dell Speed Shop

N/A

1.92/1.625
4.25
No Pipe

N/A

148/112

209/155

243/189

257/198

268/201

281/203

Chrysler Magnum R/T Ported Shady Dell Speed Shop

N/A

2.02/1.625
4.25
No Pipe

N/A

138/105

200/152

245/186

282/198

304/205

293/209

Chrysler MP Commando / Magnum

N/A

2.02/1.60

N/A

116/84

166/115

213/141

250/163

263/177

273/187

280/188

Chrysler MP Commando / Magnum Ported

N/A

2.02/1.60

N/A

102/94

150/126

201/152

239/176

271/187

291/193

301/196

Chrysler Commando

N/A

2.02/1.60

N/A

104/93

153/131

201/153

240/162

245/166

Chrysler Commando Ported Shady Dell Speed Shop

N/A

2.05/1.60
4.25
No Pipe

N/A

148/123

207/192

254/233

289/243

312/243

Chrysler W2 P5007355 RedEye Iron

N/A

2.02/1.60

64/59

120/122

169/147

210/156

237/161

250/168

260/168

Chrysler W2 P5249769 RedEye Iron

N/A

2.02/1.60

61/58

120/123

169/147

208/156

232/161

238/162

244/162

Chrysler W2 P5249769 Ported Bullet Cylinder Heads Iron

230/91

2.08/1.60

72/57

141/109

201/173

254/206

294/222

310/231

318/238

Chrysler W2 P5007445AB RedEye Iron

N/A

2.02/1.60

62/59

121/122

170/149

211/160

243/170

257/172

265/172

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler W2 P5007708AB RedEye Iron

N/A

2.02/1.60

60/57

117/118

165/145

205/155

233/163

247/165

254/165

Chrysler W2 Iron

185/-

2.02/1.60

N/A

63/57

121/105

169/132

211/144

238/148

242/150

Chrysler W2 Iron HPMM

N/A

2.02/1.60

N/A

173/141

215/148

244/151

254/151

Chrysler W2 Ported Iron

N/A

2.02/1.60

N/A

188/170

236/197

272/209

300/213

315/230

Chrysler W2 810 Flowtech - Steven Magnotti SF110 Alum

N/A

2.08/-
4.00

N/A

70/-

140/-

204/-

247/-

252/-

Chrysler W2 810 Fully Ported Flowtech - Steven Magnotti SF110 Alum

N/A

2.08/-
4.00

N/A

75/-

154/-

221/-

273/-

293/-

302/-

Chrysler W2 994 Johnson

188/-

2.02/1.60

N/A

59/50

122/110

182/154

229/173

262/176

265/174

250/172

Chrysler W2 994 Ported Ryan Johnson

196/-

2.02/1.60

N/A

60/50

127/105

184/154

232/185

274/200

302/208

280/211

Chrysler W2 Ported Shady Dell Speed Shop

N/A

2.02/1.60
4.25
No Pipe

N/A

83/55

148/108

205/160

255/193

291/209

313/215

321/217

Chrysler W2 Ported Batten Stage 3 Alum

235/-

2.08/1.60
4.25
No Pipe

N/A

138/112

199/164

253/193

292/206

316/212

329/213

Chrysler W5 Charles Servedio Alum

N/A

2.02/1.60
-
No Pipe

N/A

73/56

123/100

174/132

225/161

266/174

272/179

257/181

Chrysler W5 Shady Dell Speed Shop Alum

N/A

2.02/1.60
-
No Pipe

N/A

61/45

104/83

155/122

207/149

244/164

263/172

263/173

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler W5 '96 Flowtech - Steven Magnotti SF110 Alum

N/A

2.05/1.60
4.00

N/A

51/65

104/110

160/137

205/150

241/159

257/162

266/166

Chrysler W5 Ported Brett Miller Alum

N/A

2.05/1.60
-
No Pipe

N/A

74/57

134/110

197/152

252/188

295/217

296/232

301/241

298/246

Chrysler W5 Ported Shady Dell Speed Shop Alum

N/A

2.08/1.60
4.25
No Pipe

N/A

142/114

204/150

256/195

300/225

319/238

328/244

Chrysler W5 Max Ported Shady Dell Speed Shop Alum

N/A

2.08/1.60
4.25
No Pipe

N/A

145/120

209/171

260/217

303/245

335/258

337/263

Chrysler W5 Ported Mr P Body Alum

N/A

2.02/-
4.03

N/A

72/-

151/-

217/-

257/-

279/-

290/-

295/-

303/-

Dodge P-7 Ported Chapman Alum

327/-

2.18/1.61
-
No Pipe

49.5

139/112

225/161

300/211

359/247

376/258

379/267

381/271

Dodge P-7 Ported HRD Alum

N/A

2.16/1.62

N/A

133/124

233/179

313/227

347/254

380/267

394/276

403/281

Dodge P-7 Ported ET Performance Alum

302/-

2.18/1.625
4.18

52.5

67/46

138/102

227/143

301/187

355/216

376/240

389/249

403/254

Dodge P-7 Ported ET Performance Alum

330/-

2.18/1.625
4.18

54.5

67/46

142/102

230/143

302/187

363/216

385/240

394/249

400/254

Dodge Cup Head Ported MBE Alum

328/-

-
-
No Pipe

N/A

412/-

Chrysler W7 Ported Shady Dell Speed Shop Alum

252/-

2.15/1.60
4.25
No Pipe

N/A

148/100

216/147

272/194

311/224

350/244

362/257

Chrysler W8 Ported Chapman

269/-

2.18/1.625
-
No Pipe

71/56

153/110

224/176

284/216

327/223

343/243

352/252

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler W8 RS Ported Chapman

278/-

2.18/1.625
-
No Pipe

47.5

70/52

151/109

225/178

288/222

334/245

351/258

355/265

Chrysler W8 CNC by M2 Race Systems

272/-

2.18/1.60
4.125

236/165

297/218

340/244

361/255

373/262

373/267

Chrysler W8 Ported Shady Dell Speed Shop

N/A

2.16/1.625
4.25
No Pipe

N/A

128/97

198/138

277/200

339/236

377/259

392/271

393/276

Chrysler W8 Ported ET Performance

N/A

2.18/1.625
4.155

N/A

69/51

134/101

199/144

256/187

310/218

353/238

371/250

-/258

Chrysler W8 Brett Miller Ported

N/A

128/-

201/-

262/213

308/239

349/251

387/260

389/263

-/266

-/269

Chrysler W8 Brett Miller Ported

N/A

2.20/1.60
4.125

N/A

72/52

146/112

216/163

282/215

335/249

363/263

381/271

394/273

398/275

391/275

Chrysler W8 Brett Ported

298/-

2.18/-

N/A

276/-

329/-

367/-

382/-

394/-

403/-

Chrysler W8 Ported Truck Series

N/A

2.18/1.65

N/A

139/106

202/156

266/205

312/235

358/251

380/261

384/266

Chrysler W9

N/A

2.15/1.60

N/A

129/103

190/147

240/172

288/183

295/185

Chrysler W9 261 Ported Chapman 360 Sprint

261/-

2.15/1.625
-
No Pipe

68/52

150/112

230/181

293/220

335/239

340/243

342/250

Chrysler W9 261 Ported Chapman Sprint

261/-

2.18/1.625
-
No Pipe

148/103

217/159

276/204

320/226

306/241

351/251

Chrysler W9 268 Ported Chapman

268/-

2.20/1.625
-
No Pipe

68/52

151/112

230/181

294/220

338/239

347/243

350/250

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler W9 274 Hutter

274/-

2.18/1.625

134/111

209/161

271/201

320/240

347/253

365/260

Chrysler W9 RP 278 Ported Chapman Midget

278/124

2.15/1.60
-
No Pipe

66/49

145/116

221/201

289/244

339/260

368/267

371/270

Chrysler W9 RP 296 Ported Chapman

296/124

2.20/1.60
-
No Pipe

68/47

146/110

227/169

299/217

342/240

369/252

383/259

385/262

Chrysler W9 RP 325 Ported Chapman

325/-

2.25/1.625
-
No Pipe

72/58

137/119

214/192

282/246

341/260

379/266

405/269

419/272

Chrysler W9 Ported Shady Dell Speed Shop

272/-

2.15/1.60
4.25
No Pipe

N/A

141/103

200/159

245/204

304/226

350/241

379/251

Chrysler W9 Ported Shady Dell Speed Shop

N/A

2.18/1.625

N/A

154/-

219/-

276/-

331/-

373/-

389/-

Chrysler W9 Ported ET Performance

N/A

2.18/1.60
4.155

75/59

144/124

219/192

274/226

318/242

350/251

351/258

348/263

Chrysler W9 Ported Jones Engineering

300/-

2.20/1.60

156/118

230/175

292/223

340/241

373/249

390/261

399/265

AIRWOLF 220 Dr Js Performance Alum

220/-

2.08/1.60

N/A

72/-

144/-

219/-

273/-

301/-

312/-

316/-

319/-

321/-

326/-

BPE 205 Alum

205/-

2.08/1.60

63/63

130/115

197/186

249/208

275/215

291/222

298/232

299/239

302/243

BPE 220 Alum

205/-

2.08/1.60

64/63

136/115

207/186

260/208

281/215

303/222

315/232

322/239

326/243

Brodix SP MO Alum

192/-

2.08/1.60

129/119

180/160

221/182

249/190

263/195

269/198

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix B1 BA SUPR Alum

192/-

2.08/1.60

129/119

180/160

221/182

249/190

263/195

269/198

Brodix B1 BA Alum

195/-

2.08/1.60

129/119

180/160

221/182

249/190

263/195

269/198

Brodix B1 BA '94 Flowtech - Steven Magnotti Intake 30 Deg Back Cut SF110 Alum

195/-

2.08/1.60
4.25

N/A

68/46

129/105

171/139

198/162

223/178

227/184

-/187

Brodix B1 BA '94 Flowtech - Steven Magnotti Ported Exhaust plus Seats Recut SF110 Alum

205/-

2.08/1.60
4.25

N/A

63/50

130/109

185/171

231/213

274/226

291/236

297/242

Brodix B1 BA '94 Flowtech - Steven Magnotti Ported Intake - Exhaust plus Seats Recut SF110 Alum

N/A

2.20/1.60
4.25

N/A

65/50

136/109

196/171

248/213

284/226

308/236

320/242

Brodix B1 BA Ported Alum

N/A

2.08/1.60

145/121

203/169

250/195

286/208

300/214

303/217

Brodix B1 BA Shady Dell Speed Shop Alum

N/A

2.08/1.60
4.25
No Pipe

N/A

120/101

169/137

202/160

226/168

239/172

245/172

Brodix B1 BA Ported Shady Dell Speed Shop Alum

N/A

2.08/1.60
4.25
No Pipe

N/A

135/102

192/143

239/173

276/191

297/207

314/217

Brodix B1 BA Ported Scott Brown Alum

214/-

2.08/1.60
4.03
2" Pipe

N/A

69/62

138/120

188/157

232/215

264/237

288/249

298/263

Brodix B1 BA MC Ported Alum

239/-

2.14/1.60

147/120

216/170

272/198

309/210

332/215

347/220

Brodix B1 BA MC Shady Dell Speed Shop Alum

239/-

2.15/1.60

72/-

128/-

183/-

209/-

241/-

255/-

266/-

Brodix B1 BA MC Ported Shady Dell Speed Shop Alum

N/A

2.15/1.60
4.25
No Pipe

N/A

83/76

152/124

210/172

254/207

296/226

326/236

349/242

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix B1 BA MC Pittsburghracer Alum

N/A

2.15/1.60
-
No Pipe

N/A

69/43

127/100

184/139

240/172

297/210

357/238

370/252

370/259

Brodix B1 Ported Bullet Cylinder Heads Alum

N/A

2.08/1.60

65/57

129/111

187/177

238/216

271/235

291/241

295/244

Edelbrock 60779 PRH Out of Box Alum

N/A

2.02/1.60
4.00
No Pipe

N/A

64/49

126/97

185/133

227/156

250/166

Edelbrock 60769 Ported Straub Technologies Alum

178/80

2.02/1.60

141/107

209/158

255/205

267/216

266/223

270/224

Edelbrock Performer RPM (340) 6077 NPS Out of Box Alum

171/77

2.02/1.60
4.016
No Pipe

N/A

61/53

121/101

173/135

212/155

235/164

247/168

246/168

Edelbrock Performer Intake Gasket Matched Exhaust Ported BJR Racing Alum

N/A

2.02/1.60
-
No Pipe

N/A

92/86

167/127

207/152

242/195

280/205

285/210

291/216

Edelbrock Performer RPM Ported Anderson Port Development SF1020 Alum

N/A

2.02/1.60

N/A

73/-

138/-

191/-

246/-

292/-

321/-

334/-

338/-

342/-

Edelbrock Performer RPM Magnum 61779 SF1020 Alum

176/75

2.02/1.60

62/52

119/105

175/142

225/169

251/185

260/190

Edelbrock Performer RPM Magnum Dr Js Performance Alum

N/A

2.02/1.60
-
Pipe

N/A

59/51

116/100

171/138

219/159

247/177

254/182

260/189

Edelbrock Performer RPM Magnum Ported Dr Js Performance Alum

N/A

2.02/1.60
-
Pipe

N/A

74/62

151/118

221/160

263/196

288/217

294/220

297/236

Edelbrock Ported Hughes Alum

N/A

2.02/1.60

N/A

63/66

141/129

206/150

253/176

282/182

285/188

Edelbrock Ported Moderm Cylinder Heads Alum

N/A

2.02/1.60
4.06
No Pipe

69/60

146/116

203/151

250/179

279/198

292/211

297/220

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock CNC Hughes Stage 3 Alum

N/A

2.08/1.60

N/A

71/76

146/118

215/156

262/173

286/189

294/198

298/200

Edelbrock CNC Hughes Needs Offset Intake Rockers Flowed Charles Servedio Alum

N/A

2.08/1.60
-
No Pipe

N/A

77/68

156/112

216/148

265/177

289/193

302/204

310/206

312/209

Edelbrock Magnum MMM Alum

N/A

2.02/1.60

N/A

62/52

119/105

175/142

225/169

251/185

260/190

Edelbrock Magnum Shady Dell Speed Shop Alum

N/A

2.02/1.60
4.25
No Pipe

N/A

128/105

184/139

225/164

249/177

265/183

267/184

Edelbrock Magnum Stage 3 Ported Shady Dell Speed Shop Alum

N/A

2.02/1.60
4.25
No Pipe

N/A

145/112

204/152

255/190

286/202

297/208

297/211

Edelbrock Stage 2 Ported Shady Dell Speed Shop Alum

N/A

2.02/1.60
-
No Pipe

N/A

138/98

192/142

244/172

281/188

293/197

293/202

Edelbrock Stage 4 Ported Shady Dell Speed Shop Alum

N/A

2.05/1.60
4.25
No Pipe

N/A

147/112

207/164

255/193

279/212

293/226

293/231

Edelbrock Stage 3 Ported Aerohead Alum

N/A

2.08/1.60

N/A

72/66

132/113

197/145

248/170

277/183

302/191

306/197

Edelbrock Victor 16 Deg Alum

225/-

2.15/1.60

Edelbrock Vic 340 Ported Brett Miller Alum

N/A

-
4.125

N/A

132/-

198/151

255/188

308/214

352/233

370/245

379/254

383/260

388/263

EngineQuest Magnum NZ Stock PRD Portflow series Intake Valve Iron

N/A

1.92/1.62
4.00
No Pipe

N/A

67/50

131/95

193/136

219/162

229/169

236/171

EngineQuest CH318A Magnum NZ Stock Charles Servedio Iron

N/A

1.92/1.625
-
No Pipe

N/A

69/57

128/106

189/146

216/169

229/177

233/178

238/179

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

EngineQuest CH318A 5.2l/5.9l Magnum Iron

172/-

1.92/1.625

N/A

68/57

124/114

179/155

213/180

227/187

233/189

EngineQuest CH318A 5.2l/5.9l Magnun Ported Iron

N/A

2.02/1.60

N/A

69/60

138/124

200/169

247/200

273/219

275/229

EngineQuest CH318B Magnun Iron

172/-

1.92/1.625

N/A

66/55

121/101

179/142

214/168

226/174

235/175

238/-

EngineQuest CH318B Magnun Ported SKMFX Engines Iron

N/A

2.02/1.60

N/A

65/56

132/110

189/150

240/168

278/178

300/184

301/185

Indy 360X IQ52 Out of Box Iron

N/A

1.94/1.60
-
No Pipe

N/A

57/52

124/105

184/143

230/163

255/167

257/167

Indy 360X IQ52 Ported Iron

N/A

1.94/1.625
-
1 3/4" Pipe

N/A

144/131

191/173

234/201

264/222

280/236

283/238

Indy 360X IQ52 Ported Iron

N/A

2.055/1.625
-
1 3/4" Pipe

N/A

145/124

206/176

253/214

290/236

303/248

Indy 360X Hughes Iron

179/67

1.92/1.625

116/91

177/138

224/167

252/174

263/177

264/179

Indy 360X Brian Hafliger Iron

N/A

2.02/-
4.03

N/A

68/-

142/-

201/-

249/-

281/-

296/-

294/-

Indy 360-1

210/85

2.10/1.65

102/79

147/112

200/145

252/170

278/183

280/189

Indy 360-1 Out of Box Shady Dell Speed Shop

N/A

2.10/1.625
4.25
No Pipe

N/A

72/52

138/90

198/132

240/163

271/177

278/186

271/190

Indy 360-1 Ported Shady Dell Speed Shop

228/-

2.10/1.625
4.25
No Pipe

N/A

157/110

217/158

263/204

304/222

322/230

334/241

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Indy 360-1 Full Porting

245/95

2.14/1.65

N/A

135/115

202/155

259/185

295/206

325/219

339/226

Indy 360-1 245 Out of Box Shady Dell Speed Shop

255/-

2.15/-

N/A

69/-

147/-

213/-

269/-

294/-

312/-

322/-

Indy 360-1 245 Ported Shady Dell Speed Shop

255/-

2.15/-

N/A

70/-

144/-

210/-

269/-

313/-

344/-

361/-

Indy 360-1 Ported I-52 E-55

N/A

2.17/1.625
4.185

N/A

71/51

138/118

210/188

273/227

328/244

360/265

356/279

355/287

Indy 360-2

180/85

2.10/1.65

83/79

138/112

186/145

230/170

249/183

252/189

Indy 360-2

180/85

2.10/1.65

83/79

138/112

186/145

230/170

249/183

252/189

Indy 360-2 Full Porting

230/99

2.10/1.65

146/107

209/145

259/183

295/202

310/215

317/220

Indy 360-2 Full Porting - Bowls Blended Exhaust Short Turn Brian

N/A

2.10/1.65

N/A

151/128

220/172

277/209

300/231

320/244

320/253

Indy 360-2 Ported Shady Dell Speed Shop Oval

230/-

2.10/1.625
4.25
No Pipe

N/A

146/112

210/158

266/198

309/225

323/243

323/255

Indy 360 R Ported Bullet Cylinder Heads

230/91

2.10/1.60

70/51

138/105

208/159

259/188

300/213

318/224

334/235

ProMaxx Alum

N/A

2.02/1.60

N/A

129/-

184/-

235/-

255/-

264/-

270/-

ProMaxx Alum

N/A

2.02/1.60

N/A

69/66

136/118

191/152

240/175

257/190

267/199

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

ProMaxx 171 Alum

171/77

2.02/1.60

N/A

71/66

133/111

191/145

236/173

251/185

254/193

ProMaxx Shocker 185 Alum

185/80

2.08/1.60

142/124

202/159

251/190

278/203

284/219

286/231

RHS IQ52 Out of Box

N/A

1.92/1.60
-
No Pipe

N/A

57/52

124/105

184/143

230/163

255/167

257/167

RHS PRH Out of Box

N/A

1.92/1.62
4.00
No Pipe

N/A

65/55

118/104

172/145

217/167

246/174

253/176

RHS IMM Mild Bowl/Seat Blend

N/A

2.02/1.60
4.03
1 3/4" Pipe

N/A

69/58

141/119

197/161

241/184

267/193

271/195 @.550

Shanons Engineering 360 Full Porting

N/A

2.19/1.65

338/226

Sidewinder Bowl Blend and Port Match Alum

N/A

2.02/1.60

N/A

91/66

144/110

206/141

243/176

273/198

280/210

Sidewinder Ported Alum

186/86

2.02/1.60

90/36

155/120

206/155

256/185

282/203

300/209

Trick Flow PowerPort 190 Alum

190/81

2.02/1.60
4.00
1 7/8" Pipe

66/54

134/121

200/181

248/213

281/231

293/237

301/240

Trick Flow PowerPort Out of Box 190 PRH Alum

N/A

2.02/1.60
4.00
No Pipe

N/A

67/52

133/109

201/154

251/185

281/198

295/202

292/204

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

5.7l

N/A

2.00/1.55
-
No Pipe

74/52

144/111

210/146

251/160

265/164

267/166

5.7l Ported

N/A

2.00/1.55
-
No Pipe

N/A

64/47

134/104

210/145

266/170

300/194

320/204

5.7l Fastman

N/A

2.00/1.55

65/-

144/-

214/-

250/-

262/-

265/161

268/-

269/-

5.7l Ported Fastman

N/A

2.00/1.55

N/A

68/-

144/-

222/-

270/-

293/-

300/195

304/-

310/-

5.7l Heat Perf.

N/A

2.00/1.55

N/A

169/107

241/146

273/163

281/169

286/172

5.7l Ported Heat Perf. SF1020

N/A

2.00/1.55

N/A

148/96

233/147

285/183

308/207

318/213

5.7l JM Cylinder Heads

N/A

2.00/1.55

73/53

149/124

212/167

249/183

262/190

265/190

5.7l Ported JM Cylinder Heads Stage 2

N/A

2.055/1.60

N/A

70/56

147/127

217/164

267/191

301/204

320/210

5.7l Dr Js Performance

N/A

2.00/1.55

N/A

71/46

148/105

219/133

251/156

261/165

263/167

5.7l Ported Dr Js Performance

N/A

2.00/1.55

N/A

74/52

156/115

237/153

278/186

298/204

315/218

5.7l Ported Patriot Perf. Stage I

180/57

2.00/1.55
3.905

68/51

144/116

221/161

272/185

290/197

300/207

5.7l Ported Patriot Perf. Stage II

180/57

2.02/1.57

70/58

146/118

226/164

280/188

302/198

309/211

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

5.7l Ported Frank Racing Econo

N/A

2.00/1.55

N/A

318/-

5.7l Indy

N/A

2.00/1.55

N/A

63/60

140/126

208/161

249/175

266/178

271/179

273/180

5.7l Ported Indy

184/57

2.00/1.55
4.30

70/63

148/114

230/163

270/195

303/210

322/218

327/221

5.7l Ported Hemi Shop / Heat Perf.

N/A

2.02/1.57
3.935
No Pipe

N/A

148/96

223/147

285/183

308/207

317/213

318/216

5.7l '04 CNC M2 Race Systems

183/-

2.00/1.55
4.03

N/A

141/108

218/165

282/202

312/215

324/222

333/226

337/228

5.7l Ported Sharadon Performance SP-2

N/A

2.02/1.60

N/A

66/53

144/120

222/204

285/218

311/218

324/222

5.7l Ported Steve-O

N/A

2.00/1.55

N/A

72/54

144/107

233/161

299/189

331/209

344/211

5.7l Ported MD Induction SF600

N/A

2.00/1.55

N/A

142/119

217/150

282/202

297/218

319/225

324/227

5.7l Ported MD Induction Race SF600

N/A

2.08/1.60

N/A

153/-

241/-

306/-

337/-

352/-

361/-

5.7l Ported TEA

N/A

2.00/1.55
4.00
Pipe

N/A

72/52

145/120

221/187

278/224

310/240

323/249

5.7l CNC RLD Performance

N/A

73/60

154/122

225/167

275/196

305/226

312/225

316/226

5.7l Ported Hughes Saenz 680

N/A

2.10/1.575

85.4

85/74

164/113

236/156

289/199

325/232

342/249

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

6.1l

N/A

2.08/1.60

N/A

75/63

155/132

230/178

276/186

295/187

299/189

301/189

6.1l Heat Perf.

N/A

2.08/1.60

N/A

174/111

246/160

290/179

310/179

318/179

6.1l Radshop SF600

N/A

2.08/1.60
4.06

N/A

75/57

155/123

230/168

276/184

299/186

304/187

306/187

6.1l Ported Radshop SF600

216/65

2.08/1.60
4.06

N/A

81/63

171/120

245/167

306/209

343/225

368/240

371/242

6.1l Ported Frank Racing Econo

N/A

2.08/1.60

N/A

360/-

6.1l Ported Indy

216/-

2.08/1.60

N/A

83/72

162/126

244/167

301/195

331/209

348/212

353/220

6.1l Ported Hemi Shop / Heat Perf. SF600

N/A

2.08/1.60

N/A

173/114

250/168

311/202

348/223

368/229

6.1l Ported MD Induction SF600

N/A

2.08/1.60

N/A

148/117

234/177

301/205

346/223

366/230

371/232

6.1l Ported MD Induction Race SF600

N/A

2.10/1.60

N/A

154/114

246/173

327/225

368/231

387/236

405/240

6.1l AirWolf Dr Js Performance

N/A

2.08/-

N/A

365/-

375/-

6.1l RLD Performance

188/58

2.08/1.60

71/62

158/132

228/175

278/200

299/213

307/217

307/220

6.1l CNC RLD Performance

270/85

2.20/1.61

84/52

171/100

250/133

310/179

355/215

377/246

382/257

383/262
@.750

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Ported Flow tech Induction

N/A

2.10/1.60

N/A

75/59

148/116

231/157

301/206

339/220

355/227

6.2l Hellcat Livernois SF600

N/A

2.14/1.65
4.080

N/A

81/56

166/120

243/166

315/205

360/230

386/238

393/245

6.4l

N/A

2.14/1.65

N/A

80/68

169/121

239/159

295/186

318/197

327/202

330/204

6.4l Ported PWR

N/A

2.14/1.65

N/A

82/60

166/112

242/161

308/197

350/222

370/236

379/245

6.4l Ported BES

N/A

2.14/1.65

N/A

83/56

154/129

250/182

327/239

375/265

390/273

397/277

394/279

AFR 185 Black Hawk SF600 Alum

185/64

2.05/1.59

N/A

160/123

234/167

293/207

324/218

332/221

AFR 212 Black Hawk SF600 Alum

212/64

2.125/1.65

N/A

162/125

237/166

304/213

352/236

373/248

375/254

AFR 224 Black Hawk SF600 Alum

224/64

2.165/1.65

N/A

160/127

235/170

303/215

355/238

380/251

390/258

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 250 Full Race Ported Brian Stroud Iron

N/A

2.14/1.81
4.50
Pipe

87/60

147/112

189/151

231/177

246/194

252/207

252/212

251/217

Chrysler 286 Stage I Ported Iron

N/A

2.08/-

N/A

134/-

190/-

227/-

257/-

280/-

289/-

Chrysler 346 Ported BJR Racing Iron

177/60

2.08/1.74
-
No Pipe

99/89

191/130

229/188

243/204

285/207

289/210

298/212

304/213

Chrysler 452 Iron

200/62

2.08/1.74

N/A

142/-

208/-

244/-

264/-

Chrysler 452 Iron

200/62

2.08/1.74

N/A

-/103

-/132

-/143

-/146

-/148

Chrysler 452 Iron

200/62

2.08/1.74

N/A

61/51

126/97

188/133

208/150

218/156

219/156

Chrysler 452 Bowl Blend Iron

200/62

2.08/1.74

N/A

65/55

155/106

202/144

232/170

243/182

245/188

Chrysler 452 IQ52 Iron

200/62

2.08/1.74
-
Pipe

N/A

61/55

130/108

188/152

213/172

227/178

230/181

Chrysler 452 Ported IQ52 Stage 1 Iron

N/A

67/-

137/-

199/-

239/-

256/-

262/-

265/-

Chrysler 452 Ported IQ52 Stage 2 Iron

N/A

2.14/1.81
-
Pipe

N/A

68/60

142/130

205/187

248/218

286/234

292/245

295/253

Chrysler 452 Ported IQ52 Stage 3 Iron

N/A

92/-

170/-

224/-

265/-

287/-

297/-

302/-

Chrysler 452 Alum

210/70

2.14/1.81

290/217

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 516 Iron

182/60

2.08/1.60

N/A

62/46

126/97

177/121

199/133

210/138

219/139

Chrysler 516 Iron

182/60

2.08/1.74

N/A

122/102

172/135

201/151

216/151

223/167

Chrysler 518 Max Wedge Iron

233/77

N/A

159/-

222/-

262/-

284/-

295/-

300/-

Chrysler 518M Bowl Blend Iron

N/A

2.14/1.81

N/A

145/113

202/152

237/174

253/190

268/200

277/206

Chrysler MP replacement for 518M Ported Porter Racing Heads Iron

N/A

2.14/1.88
4.375
No Pipe

N/A

73/57

149/110

220/146

270/184

302/219

314/244

320/253

321/255

Chrysler Max Wedge Bowl Blend Gasket Match BJR Racing Iron

230/-

2.08/1.88
-
No Pipe

N/A

87/89

175/135

225/199

291/221

307/240

307/253

307/264

309/267

Chrysler 902 IQ52 Iron

N/A

2.08/-

N/A

65/-

137/-

185/-

206/-

218/-76

221/-

Chrysler 902 Ported IQ52 Iron

N/A

85/-

164/-

219/-

257/-

293/-

309/-

318/-

Chrysler 906 MMM Iron

N/A

2.08/1.74

N/A

65/61

134/107

194/142

217/160

231/167

233/171

232/-

Chrysler 906 Iron

200/62

2.08/1.74

142/-

208/-

241/-

262/-

270/-

Chrysler 906 Iron

200/62

2.08/1.74

N/A

-/98

-/127

-/143

-/150

-/154

Chrysler 906 Iron

200/62

2.08/1.74
4.44

N/A

63/62

130/107

188/131

218/146

227/155

232/164

232/169

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler 906 Iron

200/62

2.08/1.74

N/A

61/50

126/95

188/130

223/148

234/155

235/158

Chrysler 906 IQ52 Iron

N/A

2.08/1.74
-
Pipe

N/A

66/55

130/103

189/145

222/168

234/176

237/183

Chrysler 906 Ported IQ52 Iron

N/A

2.14/1.81

N/A

71/-

150/-

209/-

257/-

292/-

313/-

321/-

Chrysler 906 Stock Eliminator Modern Cylinder Head Iron

203/64

2.08/1.74
4.38
No Pipe

N/A

72/62

138/108

184/138

232/157

260/167

Chrysler 906 Dr Js Performance Iron

N/A

2.08/1.74

N/A

78/54

128/99

188/126

215/147

215/157

215/166

Chrysler 906 Ported Dr Js Performance Iron

N/A

2.08/1.74

N/A

67/57

138/108

201/140

243/168

262/184

265/194

270/200

Chrysler 906 Ported Muscle Motors Iron

N/A

2.14/1.81
4.375
No Pipe

N/A

153/128

222/165

268/200

304/215

313/223

309/223

Chrysler 906 Ported BJR Racing Iron

213/-

2.08/1.74
-
No Pipe

N/A

105/93

190/129

225/190

260/204

300/215

300/221

302/222

304/222

Chrysler 906 Bill Jones Iron

N/A

2.08/1.74
-
No Pipe

N/A

73/62

116/102

169/138

213/152

230/158

237/160

Chrysler 906 Mildly Ported Bill Jones Iron

N/A

2.08/1.74
-
No Pipe

N/A

73/66

138/115

202/149

242/180

246/193

244/199

Chrysler 906 Ported Bill Jones Iron

N/A

-
-
No Pipe

N/A

78/60

148/111

211/158

246/192

271/201

282/210

Chrysler P5153524 Alum

210/70

2.14/1.81

290/217

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler Stage IV

N/A

2.08/1.75

N/A

248/177

Chrysler Stage V (P4529993) Iron

N/A

2.14/1.81

Chrysler P4876311 MMM Alum

N/A

2.14/1.81
-
No Pipe

63/50

128/87

176/121

224/146

252/160

263/164

266/168

Chrysler P4876311 Ported MMM Alum

N/A

2.14/1.81
-
No Pipe

67/57

135/105

199/145

251/182

289/199

305/210

308/220

Chrysler Stage VI (P4529335) Alum

210/-

2.14/1.81

N/A

Chrysler Stage VI IQ52 Out of Box Alum

N/A

2.14/1.81

N/A

68/-

128/-

184/-

218/-

242/-

254/-

260/-

267/-

Chrysler Stage VI Minor Pocket Porting Gasket Matching Brian Stroud Alum

N/A

2.14/1.81
4.50
Pipe

N/A

73/57

148/117

205/160

253/195

286/232

277/260

287/276

288/292

Chrysler Stage VI Ported Porter Racing Heads Alum

N/A

2.14/1.81

N/A

68/51

146/116

211/165

258/208

288/236

321/251

331/256

Chrysler Stage VI Ported Porter Racing Heads Alum

215/-

2.14/1.81
-
No Pipe

N/A

67/56

142/104

204/148

253/185

287/214

307/234

310/246

Chrysler Stage VI Ported Porter Racing Heads Alum

215/-

2.14/1.81
-
2" Pipe

N/A

67/56

142/107

204/156

253/198

287/233

307/257

310/273

Chrysler Stage VI Ported Chapman

235/-

2.18/1.81
-
No Pipe

72/55

157/112

233/177

284/211

323/233

343/242

343/252

Chrysler Stage VI (P4876383) Ported Chapman

260/84

2.20/1.81
-
No Pipe

71/55

157/112

230/177

290/211

325/233

351/242

351/252

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler Stage VI (P4876383) Ported Chapman Out of Box Porter Racing Heads

260/84

2.20/1.81

71/58

150/119

219/180

279/219

324/234

352/243

348/250

Chrysler Stage VI (P4876386) Ported Chapman Max Wedge Alum

285/84

2.25/1.81
-
No Pipe

77/55

151/112

220/177

283/211

330/233

364/242

375/252

Chrysler Stage VI BJR Racing Out of Box Alum

N/A

2.14/1.81
-
No Pipe

N/A

94/90

141/116

218/140

258/188

307/196

322/198

324/198

Chrysler Stage VI Intake Bowl BJR Racing Alum

N/A

2.14/1.81
-
No Pipe

N/A

98/90

171/116

226/140

262/188

311/196

318/198

324/198

Chrysler Stage VI Ported BJR Racing Max Wedge Alum

N/A

2.14/1.81
-
No Pipe

N/A

93/88

183/134

239/192

309/226

340/251

362/256

373/261

393/262

Brodix B1 Org SF300 Alum

N/A

2.30/1.78
4.25
No Pipe

N/A

147/125

215/163

279/197

318/224

354/240

392/259

400/271

Brodix B1 MoPar Alum

300/-

2.30/1.78

151/116

220/174

277/216

325/227

364/227

396/227

Brodix B1 MoPar Ported ET Performance Alum

N/A

2.30/1.85
4.50

N/A

87/66

179/128

259/183

322/228

372/265

411/282

411/285

420/285

Brodix B1 BS Alum (OLD)

230/-

2.20/1.81

133/103

184/132

227/156

262/175

278/195

293/201

Brodix B1 BS Alum

230/-

2.20/1.81

145/123

204/155

249/184

284/206

294/222

295/233

Brodix STS B1 BS Alum

243/-

2.20/1.81

145/126

214/171

267/211

305/238

337/255

348/279

Brodix B1 BS Ported ET Performance Alum

N/A

2.20/1.81
4.375

N/A

77/58

148/113

198/147

253/182

299/204

332/224

334/239

338/251

342/260

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix B1 BS Ported ET Performance Alum

N/A

2.25/1.81
4.50

76/59

150/108

218/145

273/173

314/198

343/219

355/238

353/253

353/265

Brodix B1 BS Ported Modern Cylinder Head Alum

N/A

2.20/1.81
4.38

N/A

82/71

168/120

231/165

276/188

325/214

351/233

365/250

372/256

Brodix B1 Ported BES Alum

N/A

2.275/1.825

N/A

150/117

239/172

309/210

366/256

399/290

413/317

425/334

431/345

435/350

Brodix B1 Ported Koffel Alum

N/A

2.30/1.775

N/A

410/275

427/291

Brodix B1 Ported Modern Cylinder Head Alum

N/A

2.30/1.78
4.44

N/A

78/62

150/117

199/162

259/204

319/232

357/254

389/270

405/283

419/293

421/297

Brodix B1 MO Alum

300/-

2.30/1.78

151/116

220/174

277/216

325/227

364/227

396/227

Brodix B1 MC Alum

300/-

2.40/1.78

Brodix B1 MC Ported Koffel Alum

N/A

2.40/1.78
4.50

N/A

99/73

183/124

270/164

339/202

388/253

409/267

429/284

443/294

449/301

Brodix B1 MC Ported Modern Cylinder Head Alum

N/A

2.40/1.81
4.44

N/A

80/61

168/111

222/157

283/205

341/252

382/274

409/291

414/304

418/313

421/320

Brodix B1 MC Ported BES Alum

361/138

2.40/1.765

79/64

159/121

243/171

304/210

365/253

406/287

437/304

453/317

463/320

473/325

Brodix B1 PSO Ported Best Machine Alum

388/149

2.40/1.80
4.44

N/A

74/56

149/112

229/173

292/216

346/247

393/272

425/291

454/301

465/320

470/328

Brodix B1 PSO Ported Best Machine Alum

388/149

2.40/1.80
4.50

N/A

69/57

148/117

227/177

293/221

355/252

402/275

440/291

462/308

471/320

477/330

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Bulldog Performance

N/A

2.19/1.81

N/A

67/56

140/102

204/142

250/176

284/196

281/207

288/208

Bulldog Performance Stock Intake

N/A

2.19/1.81

78/67

146/126

211/170

260/195

297/213

293/226

294/236

Bulldog Performance Max Wedge Intake

N/A

2.19/1.81

74/67

147/126

213/170

257/195

307/213

308/226

307/236

Bulldog Performance Ported Brian Stroud

268.5/-

2.19/1.81
4.50
Pipe

N/A

80/53

153/112

209/157

260/188

285/218

305/245

318/265

324/282

Bulldog Performance Dvorak Ported MW

N/A

2.19/1.81

N/A

78/51

153/98

215/138

271/168

314/192

332/215

338/232

341/244

Edelbrock Performer RPM 60929, 60189 SF1020 Alum

210/70

2.14/1.81

84/88

79/70

145/126

209/160

254/188

278/206

290/217

292/223

Edelbrock Performer RPM 60929 Hughes Out of Box Alum

N/A

2.14/1.81

N/A

147/117

209/149

247/179

268/203

275/217

278/222

Edelbrock Performer RPM 60929 Ported Hughes Alum

N/A

2.14/1.81

N/A

168/115

233/157

280/194

309/219

318/223

322/228

Edelbrock Performer RPM IQ52 Out of Box Alum

N/A

2.14/1.81

N/A

73/-

148/-

209/-

254/-

276/-

287/-

291/-

Edelbrock Performer RPM Ported IQ52 Alum

N/A

84/-

158/-

215/-

252/-

299/-

328/-

349/-

Edelbrock Performer RPM Ported Exh IQ52 Alum

N/A

-/1.78

N/A

-/58

-/125

-/182

-/217

-/240

-/257

-/285

Edelbrock Performer RPM VJ Minor Bowl Port Clean Up Alum

210/70

2.14/1.81
4.375
No Pipe

N/A

64/51

136/102

202/146

250/179

272/196

287/205

288/213

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Performer RPM CNC Speier Racing Heads Alum

N/A

2.14/1.81
-
No Pipe

N/A

140/115

214/146

264/174

292/191

307/205

319/216

321/226

Edelbrock Performer RPM Ported MRL Performance

N/A

2.19/1.81
-
No Pipe

77/62

156/122

234/163

286/207

315/241

329/260

342/273

Edelbrock RPM Ported Alum

N/A

2.14/1.81
-
No Pipe

N/A

70/58

155/106

216/143

257/179

285/197

302/217

306/225

310/233

Edelbrock RPM Ported Hughes Stage 3 SF600 Alum

N/A

2.19/1.81

N/A

80/82

157/108

225/160

275/196

301/224

316/236

321/248

Edelbrock Ported Modern Cylinder Head Alum

N/A

2.14/1.81
4.38
No Pipe

N/A

75/75

151/126

219/166

267/197

306/218

324/231

328/239

328/245

Edelbrock Ported Modern Cylinder Head Alum

N/A

2.14/1.81
4.38
Pipe

N/A

75/78

151/131

219/175

267/212

306/240

324/257

328/268

328/276

Edelbrock RPM Xtreme Alum

225/100

2.20/1.81

Edelbrock Victor 77929 SF1020 Alum

280/100

2.20/1.81

85/63

150/118

211/160

261/188

298/207

322/219

325/226

Edelbrock Victor Hughes Out of Box Alum

280/100

2.20/1.81

69/67

146/118

220/166

264/200

308/225

323/242

319/260

Edelbrock Victor IQ52 Out of Box Alum

N/A

2.20/1.81

N/A

68/-

133/-

201/-

250/-

287/-

307/-

327/-

329/-

Edelbrock Victor 77929 CNC Speier Racing Heads V3.3 I-45 E-45 Alum

285/100

2.25/1.81
4.50
1 7/8" Pipe

165/117

228/166

291/203

340/237

366/254

381/265

391/270

394/276

398/279

Edelbrock Victor CNC Speier Racing Heads Alum

N/A

2.25/1.81
-
2" Pipe

N/A

154/114

219/166

282/209

334/241

363/264

378/280

390/288

395/290

402/290

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Victor Flowtech - Steven Magnotti Intake 3/4" Longer than stock SF110 Alum

280/100

2.20/1.81
4.25

N/A

68/45

128/97

235/140

275/185

296/206

315/219

Edelbrock Victor Alum

280/110

2.20/1.81

N/A

136/112

207/155

255/192

288/216

308/225

326/226

Edelbrock Victor Ported Modern Cylinder Head Alum

N/A

2.20/1.81

N/A

81/67

160/120

223/157

285/187

328/208

358/225

369/236

372/246

Edelbrock Victor Ported BES Alum

335/97

2.20/1.81

74/65

157/126

227/172

282/208

310/233

335/248

348/258

350/264

357/268

365/272

Edelbrock Victor Ported Brad H Alum

294/-

2.20/-

N/A

75/-

151/-

220/-

280/-

326/-

346/-

355/-

Edelbrock Victor Max Wedge 77949 Intake Port Raised .65 Exhaust Port Raised .25 SF1020 Alum

290/100

2.20/1.81

85/63

150/118

211/160

261/189

298/207

322/219

325/226

Edelbrock Victor Max Wedge 77949 NPS Alum

N/A

2.20/1.81
-
No Pipe

N/A

67/57

129/106

191/151

246/183

280/205

300/220

321/225

329/227

Edelbrock Victor Max Wedge Brian Alum

N/A

2.20/1.81
4.35
2 1/8" Pipe

N/A

144/117

212/167

262/205

289/231

323/248

336/255

Edelbrock Victor Max Wedge Ported Brian Alum

N/A

2.20/1.81
4.35
2 1/8" Pipe

N/A

158/133

234/184

287/223

326/251

348/270

356/284

Edelbrock Victor Max Wedge Ported Speed-O-Motive Alum

N/A

2.20/1.81

N/A

157/99

220/162

270/190

310/220

340/240

365/258

Edelbrock Victor Max Wedge Ported Hughes Stage 3 Alum

313/84

2.20/1.81

N/A

78/86

165/107

231/161

287/201

326/234

341/255

358/264

Edelbrock Victor Max Wedge Ported Hughes Alum

333/-

2.20/1.81

N/A

171/101

235/165

293/217

327/249

352/271

372/285

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Victor Max Wedge Ported Hughes Saenz 680 Alum

355/-

2.25/1.81

N/A

79/78

164/129

245/184

300/235

351/274

380/296

397/312

406/322

Edelbrock Victor Max Wedge Ported Scott Brown Alum

N/A

2.25/1.81

N/A

84/69

162/121

229/160

292/191

335/216

371/232

383/244

390/251

Edelbrock Victor Max Wedge CNCPort Alum

N/A

2.25/1.81

N/A

165/117

228/166

291/203

340/237

366/253

381/265

391/270

393/276

440source Stealth Alum

212/72

2.14/1.81

290/220

440source Stealth Alum

212/72

2.14/1.81
4.375
No Pipe

N/A

64/49

140/104

208/140

239/165

256/178

265/188

267/196

440source Stealth Alum

212/72

2.14/1.81
-
No Pipe

N/A

65/57

135/108

191/140

227/159

242/173

254/183

261/191

440source Stealth Ported Alum

N/A

2.14/1.81

N/A

82/81

178/147

231/169

274/194

292/211

300/224

301/231

440source Stealth Ported Modern Cylinder Head Alum

N/A

2.14/1.81
4.38
No Pipe

N/A

73/71

150/128

216/166

267/198

304/218

322/231

324/239

325/246

440source Stealth Ported Modern Cylinder Head 440source Alum

N/A

2.14/1.81
4.38
2" Pipe

N/A

75/73

157/125

220/166

266/198

299/219

315/233

321/244

325/246

440source Stealth Ported Modern Cylinder Head MW Alum

N/A

2.19/1.81
4.38
2" Pipe

N/A

76/71

156/125

223/166

272/197

309/218

333/232

346/244

348/249

440source Stealth NPS Alum

N/A

2.14/1.81
-
No Pipe

N/A

65/57

133/107

196/140

240/164

259/179

265/188

267/191

440source Stealth Ported NPS Alum

N/A

2.14/1.81
-
No Pipe

N/A

74/58

133/108

195/138

249/163

278/182

290/195

292/206

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Super Stealth Ported IQ52 Alum

N/A

74/-

153/-

216/-

267/-

309/-

344/-

352/-

Indy 440 Torquer

260/-

298/218

Indy 440-SR

265/106

2.19/1.81

143/101

194/135

238/164

272/189

290/204

296/217

Indy 440-SR Mild Bowl Port Compu-Flow SF1020

N/A

2.19/1.81

N/A

69/59

134/108

195/146

244/176

279/200

285/220

292/230

Indy 440-SR Full Porting

295/122

2.19/1.81

150/118

216/166

265/205

310/238

337/254

352/263

Indy 440-SR Full Porting

295/122

2.19/1.81

162/121

216/166

274/205

324/239

351/260

355/263

Indy 440-SR Ported Scott Brown

296/-

2.19/1.81
4.375
2" Pipe

N/A

76/62

160/123

220/185

273/229

313/258

336/283

344/288

347/294

Indy 440-SR Ported Modern Cylinder Heads

310/-

2.25/1.81
4.32
No Pipe

N/A

76/70

150/112

215/167

273/200

316/224

343/240

358/254

358/264

Indy 440-SR Ported Modern Cylinder Heads

310/-

2.25/1.81
4.32
Pipe

N/A

76/71

150/128

215/178

273/212

316/239

343/260

358/275

358/287

Indy 440-SR Ported Modern Cylinder Heads

310/-

2.25/1.81
4.50
No Pipe

N/A

80/72

155/125

225/173

285/206

328/234

358/255

371/266

374/277

Indy 440-SR Ported Modern Cylinder Heads

310/-

2.25/1.81
4.50
Pipe

N/A

80/74

155/132

225/182

285/220

328/251

358/274

371/290

374/305

Indy 440-SR CNC M2 Race Systems

280/-

2.19/1.81
4.50

217/165

275/199

317/219

336/243

349/257

357/265

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Indy 440-EZ

270/-

2.19/1.81
4.375

75/80

63/58

135/103

201/143

253/176

287/196

303/205

310/204

Indy 440-EZ

270/-

2.19/1.81

75/80

156/98

216/129

264/158

290/178

300/199

305/215

Indy 440-EZ Out of Box

265/-

2.19/1.81

N/A

71/54

121/97

190/137

240/170

280/194

306/209

310/222

Indy 440-EZ IQ52 Out of Box

N/A

2.19/1.81
-
No Pipe

N/A

69/59

131/103

190/135

239/165

283/189

307/205

313/212

321/-

Indy 440-EZ1

275/-

2.19/1.81

N/A

160/98

220/129

270/158

295/178

310/199

327/215

Indy 440-EZ Stock Hughes Saenz 680

N/A

2.19/1.81

N/A

74/60

137/97

197/134

248/168

284/196

296/215

304/223

Indy 440-EZ Ported Hughes Saenz 680

N/A

2.19/1.81

N/A

81/70

154/117

218/154

275/183

314/207

332/222

336/231

Indy 440-EZ CNC Bowls

295/78

2.19/1.81
4.375

75/80

65/55

141/103

210/138

266/178

308/203

333/218

344/228

Indy 440-EZ CNC

295/78

2.19/1.81
4.375

78/82

162/110

216/176

274/176

324/196

351/211

355/225

Indy 440-EZ CNC VJ Porter Racing Heads

295/78

2.19/1.81

78/82

75/55

155/109

223/158

279/196

319/224

346/239

350/251

Indy 440-EZ CNC

325/78

2.19/1.81

-/110

-/149

-/176

-/196

-/211

370/225

Indy 440-EZ Ported Modern Cylinder Heads MMM

308/-

N/A

152/-

217/-

266/-

305/-

337/-

351/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Indy 440-1 Alum

310/110

2.19/1.81

N/A

72/58

139/112

204/159

265/196

308/226

317/244

326/257

Indy 440-1 Alum, 440-C Iron

310/110

2.19/1.81

152/101

203/135

254/164

288/189

296/204

312/217

Indy 440-1 Alum, 440-C Iron Full Porting

325/122

2.19/1.81

161/132

223/177

280/218

327/248

359/267

373/279

Indy 440-1 Alum, 440-C Iron Full Porting

345/122

2.19/1.81

229/167

288/201

339/230

363/250

378/277

380/285

Indy 440-1 Ported Alum

345/-

2.25/1.81
4.275

N/A

78/-

155/-

218/-

275/-

327/-

364/-

382/-

390/-

Indy 440-C Iron Full Porting SM

N/A

2.19/1.81

N/A

215/160

280/193

325/225

344/240

362/267

362/275

Indy 440-C Mild Port MRL Performance

N/A

2.19/1.81
4.50
No Pipe

N/A

110/85

166/147

256/189

311/226

360/255

365/270

367/279

Indy 440-1 Out of Box 90's BJR Racing Alum

N/A

2.19/1.81
-
No Pipe

N/A

157/122

224/150

264/166

282/178

285/185

282/185

Indy 440-1 Ported Brian Alum

N/A

2.19/1.81

N/A

155/118

237/171

296/212

342/245

365/270

Indy 440-1 Ported Dwayne Alum

345/-

N/A

71/56

149/113

218/165

275/204

328/238

362/260

376/273

Indy 440-1 Ported Modern Cylinder Heads Alum

342/-

2.25/1.81
-
Pipe

N/A

78/67

160/127

231/176

278/210

315/243

329/270

349/285

362/297

Indy 440-1 Ported Modern Cylinder Heads Alum

350/-

2.25/1.81
4.38
No Pipe

N/A

82/71

162/120

238/166

295/200

331/228

360/251

380/267

391/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Indy 440-1 Ported Modern Cylinder Heads Flowed Porter Racing Heads Alum

342/-

2.25/1.81
-
No Pipe

N/A

74/59

154/122

232/160

279/207

318/235

341/251

351/263

359/271

Indy 440-1 Ported R & J Alum

N/A

2.25/1.81

N/A

76/58

154/117

223/170

278/209

328/245

363/270

368/287

378/301

Indy 440-1 Ported R & J Modified Alum

365/-

2.30/1.78

N/A

80/55

164/123

236/172

284/205

342/239

374/-

390/312

396/324

400/-

Indy 440-1 Ported Scott Brown

N/A

2.25/1.81
4.375
2" Pipe

N/A

80/68

170/120

239/171

297/207

331/241

345/265

355/281

359/294

Indy 440-1 Ported

N/A

2.30/1.78

N/A

80/55

164/122

233/169

294/206

342/237

374/274

390/304

396/324

400/334

Indy 572-13 Full Porting

335/118

2.30/1.88

211/163

274/208

332/243

372/272

398/292

421/304

Indy 572-13 Billy J Ported Alum

365/-

2.30/-
4.50

N/A

68/-

124/-

174/-

236/-

307/-

357/-

376/-

388/-

Indy 572-13 Ported Modern Cylinder Head Alum

345/-

2.30/1.88
4.44

N/A

77/62

161/117

215/158

273/195

324/222

360/241

376/255

388/264

391/270

396/276

Indy 600-13

410/134

2.40/1.94

209/151

263/173

313/186

338/192

356/195

Indy 600-13 Full Porting

425/140

2.40/1.94

278/221

338/265

387/293

425/309

451/315

470/330

Indy 600-13X Full Porting

460/142

2.45/1.94

500/-

NRC Performance Alum

380/-

2.40/1.85
4.50
No Pipe

52-72

485/330

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

NRC Predator Alum

N/A

2.40/1.85
4.50
No Pipe

N/A

81/59

143/114

216/146

278/193

338/225

388/252

428/276

445/290

442/297

454/297

NRC Predator Bowl Blended Alum

N/A

2.40/-
4.25

N/A

165/-

240/-

307/-

360/-

402/-

430/-

453/-

470/-

NRC Hemi Style CNC Alum

450/-

2.45/1.85
4.530
No Pipe

N/A

73/63

132/103

191/140

253/183

315/217

366/251

418/278

459/308

493/333

520/342

Pro Comp Alum

265/78

2.25/1.88

71/54

146/104

208/150

251/187

274/213

287/230

296/239

295/246

Pro Comp Out of Box NPS Alum

N/A

2.25/1.88
4.49
No Pipe

N/A

69/54

135/107

197/149

249/179

275/197

291/211

304/217

312/217

Pro Comp CNC Alum

N/A

2.20/1.81

N/A

75/55

151/118

223/168

279/215

315/251

341/276

354/292

362/303

Pro Comp Ported Modern Cylinder Heads Alum

N/A

2.25/1.81
4.38
Pipe

N/A

77/73

161/112

224/158

265/191

306/210

338/228

365/238

378/251

386/254

ProMaxx 210 Alum

210/-

2.14/1.81

145/126

206/160

256/189

278/206

294/219

296/226

ProMaxx Shocker 240 Alum

240/-

2.19/1.81

157/108

224/152

275/184

305/208

318/227

323/239

327/247

330/253

Sidewinder Out of Box Marsh Performance Alum

210/70

2.14/1.81

77/67

146/118

205/153

241/179

255/188

267/191

270/195

Sidewinder Ported Mrash Performance Alum

N/A

2.14/1.81

77/67

147/125

205/156

257/185

285/208

294/223

296/239

Trick Flow PowerPort 240 Alum

240/74

2.19/1.76
4.35
2" Pipe

154/130

230/186

282/222

310/243

326/253

334/262

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow PowerPort 270 Alum

270/74

2.19/1.76
4.35
2" Pipe

N/A

72/58

154/130

230/186

288/222

322/243

343/253

352/262

World Torquer 440 Alum

260/106

2.19/1.81

World Pro 440 Alum

310/110

2.19/1.81

Zeeker Alum

N/A

2.14/1.81

N/A

137/119

193/147

249/186

306/228

346/252

375/264

370/269

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Chrysler '54 331 Ported Smithberg Racing Iron

N/A

2.20/1.85
4.03

N/A

75/58

150/117

233/165

295/202

350/227

385/243

402/261

413/266

417/273

417/-

Chrysler '55 331 1556157 Gene Adams Iron

N/A

1.94/1.75

N/A

109/92

167/132

200/149

215/154

228/157

Chrysler '55 Ported Flowed IQ54 Iron

N/A

2.10/-

N/A

73/-

146/-

203/-

234/-

250/-

267/-

283/-

Chrysler '55 IQ54 Bk Valve VJ Iron

N/A

2.10/-

N/A

68/-

144/-

211/-

251/-

280/-

299/-

306/-

Chrysler '56 354 1619823 Gene Adams Iron

N/A

1.94/1.75

N/A

117/92

169/132

198/149

215/154

224/157

Chrysler '57 394 1735282 Gene Adams Iron

N/A

2.00/1.75

N/A

122/92

171/132

201/149

217/154

223/157

Chrysler Early Hemi Hot Heads Iron

N/A

2.00/1.75

N/A

121/97

178/128

212/145

225/159

233/160

Chrysler '55 331 Ported Bob McKay Iron

N/A

2.20/1.85

N/A

161/97

224/131

282/161

327/193

354/215

365/244

Hot Heads Early Hemi Alum

N/A

2.0625/1.80

100

125/121

191/159

241/176

259/185

274/191

Hot Heads Early Hemi Street Port Alum

N/A

2.0625/1.80

100

125/129

200/171

261/185

287/205

313/211

Hot Heads Early Hemi Race Port Alum

251/104

2.125/1.87
4.125

100

157/150

237/192

303/220

341/250

367/259

Hot Heads Early Hemi Race Port Max Alum

N/A

100

416/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Hot Heads Early Hemi Ported Smithberg Racing Alum

N/A

2.20/1.80
4.03
No Pipe

N/A

64/43

124/108

194/152

260/198

316/237

356/253

380/269

400/-

406/-

408/-
@ .95

Billet 392 Early Hemi CNC AJPE Alum

251/104

2.125/1.87
4.125

164/140

246/185

309/220

346/252

366/265

370/270

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chrysler P/S Hemi Ported ET Performance Alum

451/-

2.55/1.80
4.625

N/A

76/46

159/119

243/172

337/212

423/249

492/302

538/322

547/339

550/343

563/345

Chrysler Std. Hemi Iron

N/A

2.25/1.94

168

355/213

Chrysler Street Hemi VJ Brian Iron

N/A

2.25/1.94
4.35

N/A

85/70

154/128

231/170

285/205

308/230

315/240

320/236

Chrysler MP Hemi Rich Iron

N/A

2.25/1.94

N/A

135/94

190/131

252/175

295/205

320/223

331/228

Chrysler MP Hemi Ported intmd8 Iron

N/A

2.25/1.94

N/A

86/60

160/144

259/199

312/242

355/243

361/254

368/255

368/260

Chrysler Std. Hemi Barton SS

N/A

168

400/270

Chrysler Alum Hemi Ported Ray Barton

N/A

2.25/1.94

N/A

78/65

167/138

253/195

319/241

373/275

423/281

441/293

Chrysler Alum Hemi Ported Modern Cylinder Head

N/A

2.25/1.94
4.315

N/A

75/68

157/133

250/198

324/240

386/272

418/266

431/254

431/250

Chrysler Std. Hemi Mullin Ported Alum

N/A

390/-

Chrysler Std. Hemi Ported Alum

N/A

2.25/1.90

N/A

80/75

165/143

241/195

304/244

338/272

361/285

381/302

Chrysler MP Hemi P4876857 Out of Box Porter Racing Heads Alum

N/A

2.25/1.94
4.375
2.25" Pipe

N/A

83/58

160/136

232/195

276/221

294/225

303/226

307/226

Chrysler MP Hemi P4876857 VJ, basic clean up of entire port Porter Racing Heads Alum

N/A

2.25/1.94
4.375
2.25" Pipe

N/A

80/57

166/132

237/202

310/253

351/257

355/264

359/268

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Chrysler BJR Racing Old TF 11/32 stem Iron

195/-

2.25/1.94
-
No Pipe

N/A

95/89

178/139

232/202

311/224

333/241

Chrysler D-5 Hemi Alum

N/A

2.30/1.94

N/A

367/237

AJPE PRO MOD Hemi SF1020 Alum

323/179

2.40/1.90
4.44
2.5" Pipe

162/162

273/236

353/304

412/385

445/413

462/425

474/435

488/436

AJPE 5.3 BS PRO MOD Hemi SF1020 Alum

486/192

2.65/1.925
4.75
2.5" Pipe

N/A

161/141

276/219

369/289

459/394

534/421

583/437

602/447

615/452

624/456

AJPE 5.3 BS PRO MOD Hemi Darin Morgan Alum

N/A

2.725/2.10
-
No Pipe

N/A

180/125

262/182

344/228

434/274

527/319

601/352

659/374

693/393

708/403

725/413

735/418

739/422

AJPE A-Fuel Hemi SF1020 Alum

284/179

2.40/1.90
4.44
2.5" Pipe

165/160

272/230

349/306

416/385

450/413

463/425

473/431

478/435

AJPE TAD-TAFC Hemi SF1020 Alum

326/179

2.45/1.90
4.44
2.5" Pipe

159/162

269/236

355/304

425/385

465/413

484/425

494/435

503/436

AJPE TF-FC Nostalgia Hemi SF1020 Alum

256/110

2.375/1.925
4.17
2.5" Pipe

176

155/145

225/216

307/290

377/350

436/368

468/373

476/373

AJPE TF-FC Nostalgia Hemi SF1020 Alum

256/110

2.375/1.925
4.187
2.5" Pipe

176

165/155

272/251

349/321

416/362

450/379

463/388

473/395

AJPE Billet Stage II Hemi Alum

N/A

2.40/1.95
4.19
2.75" Pipe

176

152/138

214/203

293/270

364/335

440/387

494/390

518/391

AJPE Billet Stage III Hemi Alum

N/A

2.40/1.95
4.19
2.75" Pipe

176

149/145

221/198

303/260

397/324

475/373

534/397

559/410

AJPE Billet Stage IV Hemi Alum

N/A

2.40/1.95
4.19
2.75" Pipe

197.5

152/131

214/200

293/269

364/349

440/382

494/392

518/400

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

AJPE Billet Stage V Hemi Alum

N/A

2.45/1.925
4.19
2.75" Pipe

197.5

143/130

216/206

297/260

375/328

455/367

517/390

546/407

AJPE Billet Stage VI Hemi SF1020 Alum

333/149

2.45/1.925
4.187
2.75" Pipe

200

145/133

221/202

296/262

374/326

450/377

510/407

540/419

AJPE Billet Stage VII Hemi SF1020 Alum

340/149

2.47/1.925
4.187
2.75" Pipe

200

147/133

237/189

312/249

390/308

467/354

528/386

570/404

Canfield Hemi Alum

200/100

2.30/1.94

169

Canfield Hemi Ported Modern Cylinder Heads Alum

200/100

2.25/1.94
4.32

169

80/71

177/132

266/190

345/228

398/257

426/250

430/247

434/245

Dart Hemi Alum

N/A

2.25/1.94
4.315

N/A

68/66

147/136

225/216

302/254

372/281

406/294

417/301

422/304

423/304

Edelbrock Victor Jr Hemi Hughes Saenz 680 Alum

245/105

2.32/1.94
-
Pipe

170

77/70

149/151

227/207

304/250

373/287

414/290

430/291

Edelbrock Victor Jr CNC Hemi Hughes Saenz 680 Alum

245/105

2.32/1.94
-
Pipe

170

88/73

169/151

258/203

338/247

399/291

433/320

443/333

446/-

Edelbrock Hemi Ported Modern Cylinder Heads Alum

N/A

2.25/1.94
4.32
No Pipe

N/A

79/66

165/136

263/197

333/238

396/262

431/261

451/261

459/261

Indy 426-SR VJ, blend valve job into bowl Porter Racing Heads Alum

N/A

2.25/1.94
4.375
2.25" Pipe

N/A

78/59

153/133

233/196

294/214

317/214

329/214

337/215

342/216

Indy 426-1 Legends Meaux Racing SF600

N/A

2.25/1.94
4.28
No Pipe

N/A

131/133

201/188

267/222

324/235

356/230

371/226

380/223

384/222

Indy 426-1 Legends Meaux Racing redo SF600

N/A

2.25/1.94
4.28
No Pipe

N/A

126/115

197/173

263/217

328/253

371/267

390/260

399/256

402/253

404/250

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Indy 426-1

243/103

2.25/1.94

170

147/137

212/173

274/191

320/195

338/198

351/198

Indy 426-1R

243/117

2.25/1.94

170

147/137

212/173

274/191

320/195

338/198

351/198

Indy 426-1 Full Porting

285/123

2.25/1.94

170

150/140

221/191

288/233

360/252

416/258

454/264

Indy 426-1RA Full Porting

251/117

2.40/1.94

170

220/167

295/212

355/257

380/285

420/322

464/331

Indy 426-1RA CNC

295/144

2.40/1.94

N/A

334/233

414/269

468/301

495/317

507/324

510/330

Indy 426-1RA6 Full Porting

325/130

2.40/1.94

166

248/189

329/243

380/288

429/318

485/335

489/356

Indy 426-1RA6 CNC

335/151

2.40/1.94

345/250

429/294

490/331

515/349

532/360

535/365

Indy 426-Billet Full Porting

330/155

2.40/1.94

166

345/250

429/294

490/331

515/349

532/360

535/365

Indy 426-Billet Full Porting

360/155

2.40/1.94

166

282/205

345/258

405/304

458/345

490/369

515/390

Stage V Hemi Replacement Rich Alum

N/A

2.25/1.94

N/A

147/118

233/175

299/221

350/250

370/285

390/273

Stage V Hemi Replacement Ported Modern Cylinder Heads Alum

N/A

2.25/1.94
4.32
No Pipe

N/A

78/64

164/141

264/178

339/215

384/245

411/264

430/276

443/287

Stage V Hemi Replacement Ported Modern Cylinder Heads Alum

N/A

2.25/1.94
4.32
No Pipe

N/A

79/69

162/146

257/178

342/208

396/239

422/259

441/269

451/274

456/279

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Stage V Hemi Replacement Ported For Hemis Only SF600 Alum

241/118

2.30/1.90
4.50
No Pipe

168

75/61

159/135

248/187

315/230

384/258

435/279

467/295

471/301

Stage V Hemi Replacement Ported Alum

N/A

2.375/1.90

N/A

175/137

239/188

314/242

380/273

434/296

463/304

482/318

Stage V Hemi Ported For Hemis Only Raised Exhaust Port 21.5 Deg Angle SF600 Alum

N/A

2.40/1.90
4.50
No Pipe

173

263/174

347/225

417/269

471/302

505/314

519/319

523/322

Stage V Hemi Alum

N/A

2.25/1.94
4.315

N/A

235/180

311/200

347/207

359/210

364/212

367/214

369/214

Stage V Hemi Al Alguire Alum

N/A

2.25/1.94

N/A

155/139

245/192

325/239

358/275

379/300

397/310

412/-

Stage V Hemi Minor Clean Up Brian Alum

N/A

2.25/1.94
4.35

N/A

158/146

243/204

307/240

354/264

375/279

382/285

Stage V Hemi Ported Ray Barton Alum

N/A

-
4.50

N/A

550/-

Stage V Hemi Conversion Bowl Blend Alum

N/A

2.25/1.94

N/A

330/250

Stage V Hemi Conversion Street Port Alum

N/A

2.20/1.90

N/A

414/317

Stage V Hemi Millenium Ported Speed-O-Motive Alum

N/A

2.42/1.90

143

176/149

270/210

338/268

405/315

449/339

490/359

520/-

532/-

Stage V Hemi Millenium Ported Modern Cylinder Heads Alum

N/A

2.40/1.90
4.50
Pipe

N/A

86/68

171/144

268/185

351/228

412/272

466/298

502/319

522/327

537/331

Stage V Hemi Millenium Ported For Hemis Only Port SF600 Alum

N/A

2.45/1.95
-
No Pipe

N/A

77/51

154/125

237/184

320/220

399/256

474/302

528/334

558/343

581/349

588/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

1.200

1.300

Average

Stage V Hemi M2000 Ported For Hemis Only Port SF600 Standard Alum

N/A

2.45/1.95
-
No Pipe

N/A

74/53

164/116

237/167

313/210

391/256

463/329

520/340

555/347

576/348

584/-

Stage V Hemi M2000 Ported For Hemis Only Port SF600 Custom Alum

N/A

2.55/1.95
-
No Pipe

N/A

66/53

148/127

228/190

309/228

387/266

470/309

540/336

595/358

631/365

654/370

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

16V CNC Heads UK

N/A

1.133/1.077
100mm
No Pipe

N/A

33/-

73/62

108/-

131/116

150/-

164/125

172/-

174/128

175/-

175/129

16V Ported CNC Heads UK

N/A

1.133/1.077
100mm
No Pipe

N/A

35/-

72/66

105/-

137/134

163/-

176/145

182/-

189/157

194/-

198/158

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.0787" (2mm)

.1575" (4mm)

.2362" (6mm)

.3150" (8mm)

.3937" (10mm)

.4724" (12mm)

.5512" (14mm)

Average

2V B Series Diesel

N/A

51.1/-

91.1/-

132.7/-

147/-

160.7/-

169.4/-

172/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

Average

12V Diesel

N/A

145/153

12V Diesel Ported Stage 1 Piers Diesel Research

N/A

154/168

12V Diesel Ported Stage 2 Piers Diesel Research

N/A

163/183

12V Diesel Ported Stage 3 Piers Diesel Research

N/A

172/194

24V Diesel

N/A

161/173

24V Diesel Ported Stage 1 Piers Diesel Research

N/A

181/196

24V Diesel Ported Stage 2 Piers Diesel Research

N/A

181/205

Ferrari COPYRIGHT © 2000-2024 Stan Weiss — World Wide Enterprises
Manufacturer Part Number	Port/Vol Int/Exh	Valve Size Int/Exh	Combust. Chamber Vol	.050	.100	.150	.200	.250	.300	.350	.400	.450	.500	.550	.600	.650	.700	Average
QV	N/A	-	N/A	-	60/-	-	108/-	134/-	144/-	149/-	154/-	158/-	-	-	-	-	-	-
250 GT 3 Port CAROBU Engineering LLC	N/A	1.42/1.235 - No Pipe	N/A	35/28	58/49	80/65	98/79	114/94	119/104	121/111	122/113	122/113	-	-	-	-	-	-
250 GT 2v Early CAROBU Engineering LLC	N/A	1.415/1.23 - No Pipe	N/A	26/21	56/49	84/67	104/88	130/102	147/112	150/118	150/123	151/126	151/129	-	-	-	-	-
250 GT 2v Late '62 6 Port CAROBU Engineering LLC	N/A	1.495/1.275 - No Pipe	N/A	24/20	47/41	67/57	89/68	109/79	123/92	124/103	125/103	126/107	125/111	125/113	-	-	-	-
308 QV	N/A	29mm/-	N/A	-	-	-	-	-	-	147/-	-	-	-	-	-	-	-	-
308 QV Ported	N/A	29mm/-	N/A	-	-	-	-	-	-	164/-	-	-	-	-	-	-	-	-
308 QV CAROBU Engineering LLC	N/A	1.14/1.025 3.53 No Pipe	N/A	39/28	75/57	116/90	147/118	166/137	178/147	180/152	180/155	181/157	182/165	182/166	183/166	-	-	-
308 GTB CAROBU Engineering LLC Ported	N/A	-	N/A	26/22	53/49	82/75	107/99	127/114	141/124	152/132	159/141	166/146	170/153	170/157	-	-	-	-
355 V8 Factory Modified Sabre Heads SF110	N/A	26.5mm/ 28.45mm 86mm No Pipe	N/A	44/28	87/58	127/89	164/114	192/128	204/138	213/147	219/152	224/156	227/157	229/162	-	-	-	-
355 V8 Ported Sabre Heads SF110	N/A	27.5mm/ 30mm 86mm No Pipe	N/A	48/36	95/76	139/112	178/140	203/162	218/174	228/183	232/189	235/192	238/196	-	-	-	-	-
360 GT CAROBU Engineering LLC	N/A	1.055/1.12 3.69 No Pipe	N/A	48/31	100/70	150/118	189/156	217/186	232/189	240/192	243/194	245/194	-	-	-	-	-	-
365 GTB/4	N/A	42mm/ 38mm	N/A	-	59/48-47	-	114/98-86	130/113-95	139/119-98	145/127-102	148/135-105	150/-	-	-	-	-	-	-
Manufacturer Part Number	Port/Vol Int/Exh	Valve Size Int/Exh	Combust. Chamber Vol	.050	.100	.150	.200	.250	.300	.350	.400	.450	.500	.550	.600	.650	.700	Average
365 GTB/4 CAROBU Engineering LLC	N/A	1.655/1.475 - No Pipe	N/A	25/22	54/36	88/62	120/79	146/98	158/109	162/119	164/128	165/132	165/141	-	-	-	-	-
365 GTB/4 CAROBU Engineering LLC Ported Intake	N/A	-	N/A	-	-	-	-	-	-	168/128	-	-	-	-	-	-	-	-
412i	N/A	-	N/A	-	-	-	-	-	-	127/-	-	-	-	-	-	-	-	-
412i CAROBU Engineering LLC Ported	N/A	-	N/A	-	59/47	-	114/87	130/-	139/-	145/-	148/-	150/-	150/-	-	-	-	-	-
512 BB CAROBU Engineering LLC	N/A	1.67/1.445 3.53 No Pipe	N/A	33/26	57/53	87/73	114/99	137/110	152/120	162/127	165/132	168/137	172/142	174/147	175/151	176/153	-/156	-
2167399 F17 DX Bill Jones Flowed CNC	N/A	1.337/1.147 3.59 No Pipe	N/A	43/38	87/68	129/119	164/148	185/155	200/166	209/173	214/176	-	-	-	-	-	-	-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.500

.600

Average

X1/9 1500 Burgess - Gollan SOHC

N/A

36mm/-

N/A

35/-

55/-

73/-

85/-

90/-

91/-

92/-

X1/9 1500 Ported Burgess - Gollan SOHC

N/A

36mm/-

N/A

40/-

63/-

85/-

98/-

107/-

112/-

115/-

X1/9 1500 Ported Steve C SOHC

N/A

37.5mm/-

N/A

43/-

73/-

91/-

110/-

115/-

120/-

125/-

X1/9 SOHC

N/A

37.2mm/-

N/A

38/-

55/-

70/-

87/-

95/-

105/-

109/-

X1/9 SOHC

N/A

37mm/-

N/A

108/-

Twin-Cam 8-Valve

N/A

44/-

93/-

126/-

133/-

139/-

Twin-Cam 8-Valve Ported

N/A

47/-

95/-

134/-

154/-

169/-

2.0 16v

N/A

34.5mm/ 28.5mm

N/A

223/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

1mm

2mm

3mm

4mm

5mm

6mm

7mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

Average

Uno 1.3l Morgo Systems

N/A

36mm/ 33mm
-
Pipe

N/A

26/21

38/41

57/48

77/61

87/74

96/83

102/91

103/98

105/104

105/109

106/112

106/115

107/117

Uno 1.3l Ported Morgo Systems

N/A

36mm/ 33mm
-
Pipe

N/A

23/18

39/39

56/52

71/64

87/78

101/87

113/96

122/104

125/110

128/116

130/118

131/119

132/121

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.650

.700

Average

Ford Y ECZ-G Iron

N/A

1.927/1.51

N/A

62/51

90/72

116/87

133/94

147/102

158/109

166/114

170/119

171/123

Ford Y ECZ-G Ported Ford-Y-Block Street Iron

N/A

1.94/1.60

N/A

64/57

96/75

122/94

148/113

165/126

181/132

193/143

207/150

215/152

Ford Y ECZ-G Ported Ford-Y-Block Performance Iron

N/A

2.02/1.60

N/A

69/64

100/89

129/108

156/129

177/141

196/154

212/161

218/169

227/177

Ford Y '57 G Ported Joe Craine Street / Strip Iron

N/A

2.00/1.60

N/A

61/55

124/109

171/133

205/160

217/166

226/171

234/180

Lincoln Y ECU-E R & R performance Iron

N/A

2.00/1.635
4.00

N/A

66/50

118/91

174/116

200/127

221/135

Lincoln Y ECU-E Ported R & R Performance Iron

N/A

2.055/1.66
4.00

N/A

70/59

143/119

198/139

230/173

242/192

255/203

Lincoln Y ECU-E Ported Abbot Stage 4 Iron

N/A

2.055/1.66

N/A

71/58

145/118

197/140

225/176

236/192

246/205

Lincoln Y ECU-E Ported Abbot Stage 5 Iron

199/-

2.055/1.66

72/59

146/120

204/142

229/178

239/195

254/209

Lincoln 430 575 R & R Performance Iron

N/A

2.14/1.78
4.25

N/A

69/50

128/97

177/132

209/153

234/179

247/192

251/196
@ .700

Lincoln 430 B9VE Street / Strip Port Les Schmader Iron

N/A

2.14/1.78

N/A

173/124

217/167

251/186

277/200

287/208

Lincoln 462 '67 C6VE Joe Craine Iron

N/A

2.19/1.88
-
No Pipe

N/A

249/180

Lincoln 462 '67 C6VE Ported Joe Craine Iron

N/A

2.19/1.88
-
No Pipe

N/A

66/63

143/127

218/190

278/199

292/-

298/201

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.650

.700

Average

Ford 1.6 Pinto Ported

N/A

44mm/38mm

N/A

54/43

112/75

160/98

174/119

180/134

186/144

Ford 2.0 Pinto Early Carb Dave Baker

N/A

42mm/-

N/A

55/-

96/-

123/-

135/-

144/-

Ford 2.0 Pinto Injected Dave Baker

N/A

42mm/-

N/A

49/-

94/-

133/-

148/-

156/-

Ford 2.0 Pinto Ported Dave Baker

N/A

45.6mm/-

N/A

60/-

117/-

154/-

181/-

200/-

Ford 2.0 (SOHC English) Pinto Ported Kelford Cams

N/A

1.75/1.48

N/A

58/54

116/93

161/124

175/135

184/139

191/143

Ford Pinto CNC Heads UK

N/A

1.79/1.496
100mm
No Pipe

N/A

60/44

90/-

117/84

129/-

142/105

151/-

156/114

159/-

162/117

Ford Pinto Ported CNC Heads UK

N/A

1.79/1.496
100mm
No Pipe

N/A

64/48

97/-

127/90

155/-

178/117

198/-

201/131

207/-

212/142

Ford 2.5 CNC Heads UK

N/A

1.179/1.0195
100mm
No Pipe

N/A

74/60

114/-

148/144

172/-

184/176

192/-

199/174

201/-

199/175

Ford 2.5 Ported CNC Heads UK

N/A

1.22/1.062
100mm
No Pipe

N/A

71/71

108/-

145/163

179/-

200/209

215/-

225/215

229/-

232/219

Ford 2.0 Duratec CNC Heads UK

N/A

1.319/1.78
100mm
No Pipe

N/A

87/64

130/-

174/129

211/-

234/151

243/-

247/169

248/-

250/171

Ford 2.0 Duratec Ported CNC Heads UK

N/A

1.319/1.78
100mm
No Pipe

N/A

87/77

128/-

173/158

214/-

247/207

272/-

291/224

302/-

307/231

Ford '06 2.0-2.3 Duratec Sabre Heads SF110

N/A

35mm/30mm
-
No Pipe

N/A

85/66

125/99

163/128

193/144

211/151

219/155

224/158

225/160

226/161

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.650

.700

Average

Ford '06 2.0-2.3 Duratec Ported Sabre Heads SF110

N/A

35mm/30mm
-
No Pipe

N/A

84/83

124/121

163/144

199/157

227/162

238/168

246/170

249/175

253/176

Ford '95 16v RS2000 Sabre Heads SF110

N/A

33.5mm/ 30mm
86mm
No Pipe

N/A

83/67

123/102

157/132

179/155

188/165

194/176

200/183

201/185

204/188

Ford '95 16v RS2000 Ported Sabre Heads SF110

N/A

33.5mm/ 30mm
86mm
No Pipe

N/A

79/75

119/111

163/144

196/164

217/184

274/192

230/199

232/202

233/206

Ford 2.3 Iron

N/A

1.74/1.50

N/A

58/42

108/81

141/112

149/132

149/142

Ford 2.3 DP Ported Brian Iron

N/A

1.74/1.50

N/A

54/48

115/90

156/113

179/129

187/137

Ford 2.3 SVO Ported

N/A

1.74/1.50

N/A

202/156

Ford 2.3 SVO Turbo

N/A

1.74/1.50

N/A

65/62

99/88

131/109

157/128

173/140

Ford 2.3 SVO Turbo Ported PowerHeads

N/A

1.89/1.59

N/A

73/72

115/103

153/126

189/151

214/175

Ford 2.3 SVO Race Engineering Iron

N/A

61/39

106/78

150/118

183/144

202/167

219/183

Ford 2.3 SVO Ported JD Iron

N/A

1.89/1.59

N/A

64/54

95/82

126/109

155/130

183/151

202/163

220/174

230/181

236/187

238/194

237/197

233/199

Ford 2.3 SVO Esslinger CNC Flowed by BOPORT Racing Heads Alum

N/A

-
-
1 3/4" Pipe

N/A

68/44

131/84

183/123

222/153

246/174

262/189

265/198

233/199

Ford 2.3 Esslinger Alum

N/A

1.89/1.59

N/A

65/51

116/101

162/134

201/154

228/172

241/183

247/192

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.650

.700

Average

Ford 2.3 Esslinger D Alum

N/A

1.89/1.59
-
No Pipe

N/A

54/48

113/87

171/120

215/143

242/160

253/174

260/182

Ford 2.3 ARCA BOPORT Racing Heads

N/A

-
3.92

N/A

61/-

122/-

150/-

176/-

198/-

219/-

236/-

252/-

275/-

290/-

Ford 3.0 Essex v6

N/A

42/-

81/-

100/-

107/-

110/-

Ford 3.0 Essex v6 Ported

N/A

46/-

95/-

131/-

152/-

161/-

Ford 4.0 Ported Super Six Motorsports Stage 2

N/A

1.81/1.54

N/A

206/160

Ford 4.0 Ported Super Six Motorsports Stage 2+

N/A

1.83/1.56

N/A

226/176

Ford 4.0 Ported Super Six Motorsports Stage 3

N/A

1.90/1.56

N/A

236/176

Ford ZTEK CNC Heads UK

N/A

31.5mm/ 27.5mm

N/A

85/64

129/-

171/129

198/-

208/151

216/-

222/170

225/-

227/171

Ford ZTEK Ported CNC Heads UK

N/A

35mm/ 30mm

N/A

85/69

129/-

172/153

206/-

233/192

247/-

256/203

262/-

265/211

Focus Zetec

N/A

32mm/ 28mm

N/A

79/68

144/126

175/148

184/155

Focus Zetec Alaniz Cyl Heads

N/A

33mm/ 29mm

N/A

74/68

144/114

173/132

182/139

186/139

Focus Zetec ZX3P 2.0l '00-04 Ported Alum

N/A

33mm/ 30mm

47.7

81/75

119/109

154/145

181/168

193/186

205/188

214/193

220/195

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.650

.700

Average

Focus Zetec Ported CFM Stage II

N/A

33mm/ 29mm

N/A

86/94

161/173

203/200

218/209

FocusSport Cosworth Zetec Focus

N/A

222/175

Ford Cosworth YBT CNC Heads UK

N/A

1.3/1.1
100mm
No Pipe

N/A

92/89

137/-

168/146

182/-

192/152

199/-

202/158

204/-

204/160

Ford Cosworth YB1 CNC Heads UK

N/A

1.37/1.22
100mm
No Pipe

N/A

93/78

141/-

188/157

219/-

236/196

251/-

260/197

263/-

265/197

Ford Cosworth YB3BV CNC Heads UK

N/A

1.37/1.22
100mm
No Pipe

N/A

99/93

148/-

197/188

236/-

265/207

292/-

308/222

316/-

320/223

Ford Fiesta Puma 1.7 CNC Heads UK

N/A

1.179/1.0195
100mm
No Pipe

N/A

79/65

120/-

151/125

170/-

185/149

193/-

197/153

199/-

201/153

Ford Fiesta Puma 1.7 Ported CNC Heads UK

N/A

1.179/1.0195
100mm
No Pipe

N/A

76/70

116/-

158/157

188/-

207/185

221/-

229/193

231/-

230/199

Ford CVH CNC Heads UK

N/A

1.6495/1.4845
100mm
No Pipe

N/A

51/46

75/-

98/92

116/-

133/119

144/-

152/125

156/-

160/128

Ford CVH Ported CNC Heads UK

N/A

1.6495/1.4845
100mm
No Pipe

N/A

58/48

88/-

117/99

144/-

164/129

178/-

189/159

197/-

201/174

Ford CVH Ported Ian Howell

N/A

43 mm/-

N/A

204/-

201/174

Ford X2 Crossflow CNC Heads UK

N/A

1.501/1.238
3.16
No Pipe

N/A

48/35

72/-

95/64

109/-

120/80

122/-

124/87

124/-

126/89

Ford X2 Crossflow Ported CNC Heads UK

N/A

1.545/1.322
3.16
No Pipe

N/A

48/43

74/-

98/81

120/-

137/106

149/-

154/114

154/-

156/120

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.650

.700

Average

Ford XFLOW Ported CNC Heads UK

N/A

1.625/1.377
3.16
No Pipe

N/A

55/49

82/-

109/92

134/-

156/117

174/-

188/130

199/-

201/136

Ford I-6 US Iron

N/A

1.65/1.38

N/A

45/36

87/68

108/91

119/98

124/103

127/105

Ford I-6 OZ 250 Iron

N/A

1.75/1.50

N/A

63/36

101/68

133/91

155/98

156/103

156/105

Ford I-6 OZ 250 Ported Classic Inlines Iron

N/A

1.75/1.50

N/A

54/45

105/76

135/92

163/107

172/119

172/126

Ford I-6 Classic Inlines Alum

N/A

1.84/1.50

N/A

52/40

99/79

143/111

180/144

201/164

210/174

Ford I-6 Classic Inlines Ported Alum

N/A

1.84/1.50

N/A

55/44

103/87

159/122

196/159

223/179

231/184

Ford Godzilla Ported Mast Alum

331/87

2.25/1.60

77/53

151/105

234/150

286/184

323/204

345/214

348/218

World S/R 2.9 v6 Iron

180/64

1.657/1.419

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

11mm

12mm

13mm

14mm

16mm

18mm

Average

Ford Cosworth YB MORGO Systems

N/A

35mm/31mm
-
Pipe

N/A

66/-

124/-

150/-

163/-

171/-

173/-

175/-

176/-

Ford Cosworth YB Ported MORGO Systems for std cams

N/A

64/-

129/-

178/-

201/-

208/-

210/-

Ford Cosworth YB Ported MORGO Systems for 11 mm lift cams

N/A

72/-

143/-

204/-

235/-

248/-

252/-

255/-

257/-

Ford 1.6 OHC Pinto Ported /Andre' Norrback Epoxy

N/A

42mm/34mm
85mm
No Pipe

N/A

38/-

76/-

110/-

139/-

152/-

154/-

Ford OHC Pinto Ported /Andre' Norrback Rally

N/A

44.5mm/ 38mm
98mm
No Pipe

N/A

46/-

91/-

135/-

166/-

185/-

195/-

202/-

Ford OHC Pinto Ported /Andre' Norrback

N/A

46mm/ 38mm
98mm
No Pipe

N/A

48/40

89/74

136/100

174/119

202/130

215/142

206/144

206/146

Ford OHC Pinto Ported /Andre' Norrback

N/A

44mm/ 36mm
98mm
No Pipe

N/A

49/-

92/-

137/-

179/-

208/-

221/-

227/-

Ford 2.0 OHC Pinto Ported /Andre' Norrback Rally

N/A

46mm/36mm
98mm
No Pipe

N/A

52/-

98/-

144/-

188/-

215/-

233/-

236/-

Ford OHC Pinto Ported /Andre' Norrback

N/A

46mm/-

N/A

50/-

96/-

142/-

180/-

207/-

227/-

240/-

245/-

248/-

Pinto Ported /Andre' Norrback

N/A

52mm/ 40mm
98mm
No Pipe

N/A

53/48

101/80

148/109

189/136

229/160

254/176

279/186

295/195

312/202

Pinto Ported /Andre' Norrback

N/A

52mm/ 40mm
100mm
No Pipe

N/A

54/48

103/80

150/109

196/136

238/160

267/176

290/186

310/195

326/202

Ford CVH MORGO Systems

N/A

41.9mm/-

N/A

39/-

69/-

97/-

119/-

128/-

133/-

136/-

139/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

11mm

12mm

13mm

14mm

16mm

18mm

Average

Ford CVH Ported MORGO Systems

N/A

41.9mm/-

N/A

51/-

92/-

140/-

175/-

190/-

193/-

196/-

198/-

199/-

Ford RS 2000/2300 MORGO Systems

N/A

33.5mm/-

N/A

69/-

127/-

161/-

171/-

179/-

182/-

184/-

186/-

Ford RS 2000/2300 Ported MORGO Systems

N/A

33.5mm/-

N/A

63/-

126/-

177/-

204/-

222/-

228/-

233/-

236/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.150

.250

.350

.450

.550

.600

.650

.700

.800

.900

Average

Ford Super Six Motorsports With Stock Intake manifold

N/A

37mm/31mm

N/A

122/100

189/151

235/176

257/189

262/191

Ford Ported Super Six Motorsports With Ported Intake manifold

204/95

1.45/1.22

N/A

136/120

237/180

279/231

302/250

317/260

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.650

.700

.800

.900

Average

Ford 3.8 SC Redline Performance Mustangs

N/A

1.78/1.46

N/A

158/106

Ford 3.8 SC / Single Port

N/A

1.78/1.46

N/A

52/40

82/71

111/95

144/113

170/123

181/127

183/129

Ford 3.8 SC / Single Port Ported Coy Miller

N/A

1.85/1.625

N/A

56/50

113/103

164/144

199/187

216/201

225/208

226/206

Ford 3.8 SC Ported Stiegemeier Racing

N/A

1.875/1.60

N/A

131/120

181/166

217/206

229/212

232/215

Ford 3.8 SC Ported Super Six Motorsports Stage 2

N/A

1.78/1.45

N/A

203/154

Ford 3.8 SC Ported Super Six Motorsports Stage 2+

N/A

1.83/1.50

N/A

215/165

Ford 3.8 SC Ported Super Six Motorsports Stage 3 88-95

N/A

1.85/1.55

N/A

228/189

Ford 3.8 SC Ported Redline Performance Mustangs 88-95

N/A

1.84/1.60

N/A

210/153

Ford 3.8 SC Ported Super Six Motorsports Stage 3 96-98

N/A

1.90/1.56

N/A

240/181

Ford 3.8 SC Ported Redline Performance Mustangs 96-98

N/A

1.86/1.55

N/A

210/153

Ford 3.8 Single Port Ported Matt SF600

N/A

1.84/1.575
-
No Pipe

N/A

86/48

168/99

216/151

251/205

279/235

294/260

305/264

312/267

Ford 3.8 Split Port Ported Slvr 2000

N/A

1.94/1.55

N/A

69/59

164/104

198/142

239/173

268/201

294/224

319/231

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.650

.700

.800

.900

Average

Ford 3.8 Split Port Ported "J"

N/A

1.94/1.55
-
No Pipe

N/A

91/60

162/112

213/145

242/175

270/204

298/231

Ford 3.8/4.2 Split Port Redline Performance Mustangs

N/A

1.86/1.46
-
No Pipe

N/A

63/46

199/122

Ford 3.8/4.2 Split Port Ported Redline Performance Mustangs

N/A

1.94/1.55
-
No Pipe

N/A

80/59

142/110

198/140

224/163

238/169

253/170

Ford 3.8/4.2 Ported Super Six Motorsports Stage 2

N/A

1.86/1.45

N/A

230/150

Ford 3.8/4.2 Ported Super Six Motorsports Stage 2+

N/A

1.90/1.50

N/A

240/160

Ford 3.8/4.2 Ported Super Six Motorsports Stage 3

N/A

1.94/1.56

N/A

260/170

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Boss 302 Iron

N/A

2.19/1.67

N/A

68/49

115/94

171/121

213/142

244/152

268/159

280/171

Boss 302 C4V Iron

N/A

2.19/1.67

N/A

210/154

246/169

274/178

Boss 302 C4V Mark Workman Iron

N/A

2.19/1.67

N/A

71/60

149/99

221/128

269/154

287/168

290/176

298/178

Ford 351 C2V Iron

N/A

2.03/1.67

N/A

142/90

189/120

200/143

199/163

Ford 351 C2V Iron

N/A

2.03/1.67

N/A

203/145

230/172

Ford 351 C2V Iron

N/A

2.03/1.67

N/A

53/46

114/80

172/110

200/131

212/143

217/152

211/160

Ford 351 C4V D1ZE-GA Iron

244/137

2.19/1.71

284/154

Ford 351 C4V CHI Iron

N/A

2.19/1.71

N/A

64/38

113/78

166/112

209/135

245/155

267/160

275/-

Ford 351 C4V Iron

N/A

2.19/1.71

N/A

131/88

188/129

220/146

256/159

269/165

279/166

Ford 351 C4V D0AE Closed Chamber Mark Workman Iron

N/A

2.19/1.71

N/A

72/54

145/94

212/126

270/151

299/172

302/185

304/185

Ford 351 C4V Hans Ported Iron

N/A

2.19/1.71

N/A

82/45

160/65

232/145

294/176

Ford 351 C4V Glen Ported Iron

N/A

2.19/1.71

N/A

65/56

123/100

188/139

246/166

294/183

322/186

333/185

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford Ported Early Pro Stock Iron

244/165

2.19/1.75

63/54

151/103

222/146

284/182

327/207

337/224

343/236

353/244

Ford 4V Closed Chamber Dr Js Performance Iron

N/A

2.19/1.70
-
Pipe

N/A

70/58

135/99

195/131

247/156

282/168

289/177

290/181

290/180

Ford 4V Closed Chamber Ported Dr Js Performance Iron

N/A

2.25/1.70
-
Pipe

N/A

82/68

153/110

224/149

291/180

326/198

340/211

355/225

364/228

Ford 4V Closed Chamber Ported BH Performance Iron

N/A

-
-
No Pipe

N/A

70/64

131/107

198/145

248/169

300/192

322/200

330/-

Ford 4V Closed Chamber Ported Bullet Cylinder Heads Intake Tongues are fitted Iron

259/-

2.19/1.71

71/58

144/109

212/153

256/180

289/207

318/218

342/225

Ford Aussie 2V PowerHeads SF600 Iron

N/A

2.04/1.67

59/44

112/79

156/109

178/130

187/153

191/172

Ford Aussie 2V Ported PowerHeads SF600 Iron

N/A

2.19/1.71

79/75

154/109

206/156

231/180

244/200

253/209

Ford Aussie 2V Ported John Brides Iron

N/A

2.08/1.65

N/A

73/51

158/97

225/120

240/139

246/160

Ford C302 C302B

212/95

2.15/1.65

325/-

Ford C302B Stiegemeyer Racing SF600 Ported

217/112

2.19/1.65
4.155
No Pipe

N/A

81/73

157/131

223/180

266/210

306/223

331/228

325/-

Ford C302B SVO Ported Bullet Cylinder Heads Alum

N/A

2.19/1.65

N/A

75/77

144/128

210/164

260/196

298/216

326/227

348/235

Ford D302 D302B

212/95

2.15/1.65

325/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford 351M/400 D5AE-A2A Matt SF1020 Iron

N/A

2.041/1.654

N/A

114/76

172/106

193/130

201/149

206/155

AFD 2V Alum

200/115

2.08/1.60

N/A

124/105

179/140

231/164

271/176

290/185

AFD 4V Closed Chamber SF300 Alum

235/115

2.15/1.65

N/A

70/55

147/108

215/151

269/185

298/205

316/216

330/221

AFD 4V Ported Dr Js Performance Alum

N/A

2.19/1.70
-
Pipe

N/A

78/52

150/108

216/146

277/174

318/207

331/224

348/236

362/243

AFD 4V Ported Alum

N/A

2.19/1.70

N/A

139/130

214/158

288/188

340/215

377/237

379/249

384/260

390/267

Avenger XTC 351-C CNC Alum

265/90

2.25/1.74

60/70

75/65

145/111

217/138

281/165

328/214

344/233

350/247

360/260

Blue Thunder Low-Ex Alum

N/A

325/210

Blue Thunder Ported Alum

N/A

2.10/1.65

N/A

380/265

Blue Thunder Hi-Ex Alum

N/A

2.20/1.70

N/A

325/240

Blue Thunder Ported Hi-Ex Alum

N/A

2.20/1.71

N/A

395/285

Blue Thunder Stage 3 Ported Alum

220/-

2.20/1.71

N/A

400/300

Blue Thunder Comp Ported Alum

N/A

2.25/1.70
4.155

N/A

423/311

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Blue Thunder Custom Performance Stage IV Ported Hi-Ex Alum

N/A

2.20/1.71

N/A

410/295

Blue Thunder Ported Dave Jack Alum

N/A

2.20/1.70
4.155
No Pipe

415/289

Blue Thunder Ported Speier Racing Heads v3.10 Alum

N/A

2.15/1.71
4.155
No Pipe

N/A

141/104

214/144

272/186

328/217

369/243

382/249

388/254

391/258

395/263

Blue Thunder 3.6 Ported Speier Racing Heads Alum

260/-

2.15/1.71
-
No Pipe

141/104

226/144

288/180

339/196

376/244

390/258

394/265

397/268

402/270

CHI 2V Alum

190/-

2.07/1.65

N/A

77/64

147/114

207/153

255/185

286/200

300/214

298/222

CHI 3V Alum

185/-

2.08/1.65

N/A

77/64

147/114

201/153

250/191

286/208

290/222

CHI 3V Alum

208/-

N/A

77/64

139/114

200/153

248/191

288/208

314/219

CHI 3V Ported Phil Martin Alum

N/A

2.07/1.65

N/A

165/132

239/179

297/212

323/229

340/240

340/244

CHI 3V CNC Alum

218/-

2.15/1.65

N/A

64/52

124/94

179/130

234/159

282/193

314/217

334/230

350/243

CHI 3V Ported Kelford Cams Alum

218/-

2.15/1.65

N/A

70/57

140/112

197/168

254/194

305/209

336/224

341/234

CHI 3V Alum

225/-

2.15/1.65

N/A

70/64

140/114

205/153

259/191

295/208

322/219

340/228

CHI 3V Ported Bullet Cylinder Heads Alum

237/121

2.19/1.71

82/60

148/110

205/152

256/209

295/224

326/245

352/252

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

CHI 3V CNC Alum

260/-

N/A

78/60

150/111

210/150

270/188

315/208

340/223

360/260

370/230

CHI 3V CNC Darin Morgan (EMC) Alum

252.5/-

2.18/1.60

148/-

231/-

304/-

364/-

390/-

402/-

406/-

411/-

CHI 3V Ported Alum

248/-

2.18/1.60

N/A

228/142

290/186

350/217

380/244

397/260

400/272

400/280

CHI 4V Alum

228/-

2.19/1.65

N/A

76/64

145/114

256/185

295/200

315/214

325/222

3V Ported P. I. Motorsorts Alum

213/-

2.19/1.71

149/102

210/137

257/162

298/185

317/203

321/221

CHI CNC Dr Js Performance I-50 Alum

N/A

2.18/-

N/A

68/-

138/-

228/-

288/-

321/-

363/-

386/-

394/-

408/-

416/-

CHI Kaase 2.85 C-400 Alum

N/A

2.19/1.65

69/45

153/111

225/163

285/210

337/233

373/245

396/253

400/253

CHI Kaase 3.1 C-400 Alum

N/A

2.19/1.65

68/45

149/111

228/163

294/210

348/233

381/245

397/253

400/253

CHI 3V Pro Alum

268/-

2.19/1.65

75/45

126/110

239/163

304/210

347/233

373/245

393/253

406/256

Edelbrock Performer RPM 61629 SF1020 Alum

190/90

2.05/1.60

58/54

120/105

180/138

227/151

260/161

265/165

Edelbrock Performer RPM Alum

190/90

2.05/1.60

70/49

139/93

205/123

242/145

268/161

272/172

P I Motorsports 3V Alum

213/-

2.19/1.71

149/102

210/137

257/162

298/185

318/203

-/221

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro Comp Alum

220/90

2.19/1.71

65/50

107/86

162/122

208/145

245/160

267/168

Pro Comp Ported Speed-O-Motive Alum

230/110

2.19/1.71

65/54

141/108

200/147

247/176

285/200

318/217

335/230

342/238

Pro Comp Ported Dr Js Performance I-52 Alum

265/-

2.20/1.70

79/-

161/-

231/-

295/-

339/-

373/-

395/-

404/265

406/-

409/-

Pro Comp Ported Speier Racing Heads Alum

260/-

2.15/-

N/A

140/-

202/-

260/-

310/-

341/-

352/-

361/-

Pro Comp Ported Speier Racing Heads V2.90 I-45 E-45 Alum

250/-

2.19/1.71

N/A

140/115

202/150

260/184

310/217

339/232

352/239

361/243

ProMaxx 2V Alum

N/A

2.10/1.65

161/124

219/157

268/185

306/214

330/227

337/232

ProMaxx 4V Alum

N/A

2.10/1.65

156/116

223/153

272/192

310/219

335/230

346/241

Trick Flow SF600 Alum

190/-

2.08/1.60

280/230

Trick Flow Bowl Blended SF600 Alum

190/112

2.08/1.60
4.03
1 7/8" Pipe

68/55

140/111

202/151

248/187

286/217

299/232

Trick Flow PowerPort 195 SF600 Alum

195/112

2.08/1.60
4.03
1 7/8" Pipe

68/55

140/111

202/155

254/193

289/221

313/236

Trick Flow CNC TEA Alum

225/115

2.08/1.60
4.125
1 7/8" Pipe

68/55

146/115

223/162

282/204

313/231

336/240

339/244

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

2V '92-'98 / NPI

146/-

44.5mm/ 34mm

156/116

'96 Non P.I.

146/-

N/A

46/-

84/-

121/-

147/-

170/-

176/-

'96-'98 Non P.I. Ported Steen Racing

N/A

190/165

'96-'98 Non P.I. 4.6L Ported BH Performance

N/A

44.5mm/ 34mm
-
No Pipe

N/A

69/58

118/87

161/142

201/169

216/186

227/191

'96-'98 Non P.I. 4.6L Ported Renegade

N/A

44.5mm/ 34mm

N/A

67/62

120/97

165/137

193/152

210/164

222/174

'01 P.I. Alum

159/-

44.5mm/ 36mm

N/A

54/-

98/-

135/-

156/-

166/-

168/-

'99 & up P.I. Alum

159/-

44.5mm/ 36mm

163/150

'99 & up P.I. FPS Alum

N/A

44.5mm/ 36mm

N/A

54/55

102/91

139/121

159/142

169/142

165/150

176/153

'99 & up P.I. Ported FPS Alum

N/A

45.2mm/ 36.8mm

N/A

57/57

109/98

157/136

180/172

204/187

215/194

226/209

'99 & up P.I. Ported Steen Racing Stage 1 Alum

N/A

57/52

119/94

146/102

176/149

210/170

'99 & up P.I. Ported Steen Racing Stage 2 Alum

N/A

69/68

128/104

154/102

181/163

216/181

'99 & up P.I. Fox Lake 5.0 S/F Alum

N/A

44.5mm/ 36mm

N/A

55/55

90/86

130/121

142/143

150/150

161/153

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

'99 & up P.I. Ported Stage 1 Fox Lake 5.0 S/F Alum

N/A

44.5mm/ 36mm

N/A

60/60

100/90

142/127

169/150

187/164

190/172

'99 & up P.I. Ported Stage 2 Fox Lake 5.0 S/F Alum

N/A

44.5mm/ 36mm

N/A

61/64

103/96

151/133

179/169

205/175

220/181

'99 & up P.I. 4.6L Ported BH Performance Alum

N/A

-
-
No Pipe

N/A

63/68

114/116

162/157

199/187

213/194

222/204

'99 GT 5.0 S/F Alum

N/A

44.5mm/ 36mm

N/A

111/95

150/123

170/139

179/150

180/154

181/155

'99 GT Ported Stage III 5.0 S/F Alum

N/A

44.5mm/ 36mm

N/A

125/101

165/129

191/147

204/160

209/164

212/166

4.6L 2V P.I. HRM Alum

N/A

44.5mm/36mm

N/A

54/55

107/91

139/121

159/137

169/142

175/150

4.6L 2V P.I. Ported HRM Alum

N/A

57/56

107/98

154/133

179/169

194/182

203/185

4.6L 2V P.I. PowerHeads SF600 Alum

N/A

63/65

112/101

148/132

172/150

178/161

180/162

182/162

4.6L 2V P.I. Performance C.A.P.A. Performance Alum

N/A

46.83mm/ 35.88mm

185/148

4.6L 2V P.I. Ported C.A.P.A. Performance Alum

N/A

45mm/ 36mm

225/205

4.6L 2V P.I. CNC Livernois Motorsports Stage II Alum

N/A

45mm/ 36mm

N/A

207/195

4.6L 2V P.I. CNC Livernois Motorsports Stage III Alum

N/A

45.5mm/ 37mm

N/A

225/205

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

4.6L 2V P.I. CNC M2 Race Systems Alum

187/-

45.5mm/ 37mm
3.575

N/A

59/49

116/91

164/124

193/148

211/163

221/173

4.6L 2V P.I. Ported PowerHeads SF600 Alum

N/A

89/84

146/137

182/172

212/189

226/200

231/202

232/202

4.6L 2V P.I. Ported Patriot Performance Stage I Alum

N/A

1.752/1.417
3.552

N/A

60/52

107/94

152/130

185/160

209/178

211/185

214/192

4.6L 2V P.I. Ported Renegade

N/A

64/52

116/94

162/130

192/160

213/178

217/185

2V P.I. Ported BES

N/A

1.78/1.45

N/A

105/93

150/134

189/164

207/175

213/178

220/180

224/185

4.6L P.I. / 5.4L 2V Ported Patriot Performance Stage II SF1020 Alum

180/67

1.781/1.452
3.552

64/52

116/98

162/135

192/162

213/182

217/189

218/193

4.6L P.I. / 5.4L 2V Ported Patriot Performance Stage III Alum

180/67

1.84/1.452
3.552

68/53

121/100

169/138

203/165

219/186

227/196

233/201

4.6L P.I. / 5.4L 2V TEA Stage 2 Alum

N/A

1.78/1.45

N/A

60/52

114/100

161/138

192/170

212/194

219/199

221/202

4.6L P.I. / 5.4L 2V TEA Stage 3 Alum

N/A

1.84/1.45

N/A

56/55

112/100

160/139

202/167

226/188

235/196

243/204

5.4L 2V '99-04 LFP Stage II Alum

180/67

1.78/1.45

65/51

118/99

162/135

191/165

214/184

218/188

223/196

Lightning PI Ported collins SF600 Alum

N/A

44.5mm/ 36mm

N/A

60/60

101/101

144/134

179/156

207/178

220/191

Lightning PI Ported Smithberg Racing Alum

N/A

44.5mm/ 36mm
3.625
No Pipe

N/A

71/43

133/78

183/116

212/151

226/178

229/187

233/191

236/199

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

'00 F-150 Dale SF600 Alum

N/A

44.5mm/ 36mm

N/A

54/50

103/104

143/126

162/138

172/143

175/145

'00 F-150 Ported Dale SF600 Alum

N/A

44.5mm/ 36mm

N/A

61/57

111/96

153/130

186/164

212/180

218/184

220/190

Motorsport 2V SVO

N/A

215/147

Motorsport 2V SVO

173/-

46.8mm/ 35.8mm

193/140

Motorsport 2V SVO

173/-

46.8mm/ 35.8mm

206/142

Motorsport 2V SVO Mild Porting

200/-

46.8mm/ 35.8mm
3.50
No Pipe

60/48

125/91

182/131

215/162

235/184

242/190

243/192

Motorsport 2V SVO Ported Fox Lake

N/A

46.8mm/ 35.8mm
3.55

N/A

72/60

143/103

195/135

214/153

238/185

248/194

257/196

3V Stock Blow-By Racing Alum

N/A

33.8mm/ 37.5mm

N/A

77/53

147/98

200/120

216/138

223/148

225/154

3V Ported Blow-By Racing Alum

N/A

33.8mm/ 37.5mm

N/A

75/46

162/104

228/136

274/163

284/177

293/190

3V Stock PowerHeads SF600 Alum

N/A

33.8mm/ 37.5mm

N/A

74/71

146/119

198/145

217/170

225/190

225/193

225/196

3V Ported PowerHeads SF600 Alum

N/A

33.8mm/ 37.5mm

N/A

84/81

160/128

212/169

247/195

265/212

270/218

271/226

3V Stock Fox Lake MMFF Alum

N/A

33.8mm/ 37.5
3.55

N/A

220/165

228/175

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

3V Ported Fox Lake MMFF Alum

N/A

33.8mm/ 37.5mm
3.55

N/A

256/188

269/203

3V Ported Fox Lake Alum

N/A

33.8mm/ 37.5mm
3.55

N/A

221/142

249/175

264/190

272/204

3V CNC M2 Race Systems Alum

N/A

34mm/ 37.5mm
3.575

N/A

85/47

177/98

233/129

260/153

273/172

283/189

3V Ported Sutton High Performance Alum

N/A

33.8mm/ 37.5mm

N/A

223/143

264/173

288/189

298/198

3V Ported TEA Stage 1 Alum

N/A

33.8mm/ 37.5mm
-
Pipe

N/A

84/51

159/108

221/153

264/182

279/209

283/216

287/223

3V Ported PSI Performance Alum

N/A

33.8mm/ 38.5mm

N/A

129/91

172/119

235/154

248/179

263/198

272/201

281/205

3V Stock Livernois Motorsports Alum

N/A

33.8mm/ 37.5mm

N/A

84/54

145/100

208/125

217/153

227/153

227/158

3V CNC Livernois Motorsports Stage II Alum

N/A

34mm/ 37.5mm

N/A

280/185

3V CNC Livernois Motorsports Alum

N/A

35mm/ 38.5mm

N/A

99/47

188/106

237/141

259/162

272/176

282/186

3V CNC Livernois Motorsports Stage III Alum

N/A

35mm/ 38.5mm
3.552

N/A

131/65

219/126

268/166

285/186

291/205

301/215

3V CNC FORD Motorsports Alum

N/A

35mm/ 38.5mm

N/A

295/200

3V '05 Stock 5.0 S/F Alum

N/A

33.8mm/ 37.5mm

N/A

146/107

208/130

229/147

235/159

237/163

238/165

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

3V 4.6l Slawko Alum

N/A

34mm/ 37mm

N/A

68/69

137/111

200/133

229/146

235/155

240/158

235/160
@.650

3V 4.6l Ported Slawko Alum

N/A

34mm/ 37mm

N/A

77/63

167/110

240/146

263/172

276/194

284/201

287/203
@.650

4V FR500 Alum

N/A

37mm/ 30mm

N/A

233/168

4V FR500 CNC M2 Race Systems Alum

N/A

37mm/ 30mm
3.575

N/A

99/84

182/135

251/181

294/209

318/226

330/234

4V FR500 Alum

N/A

37mm/ 31mm
-
Pipe

N/A

90/60

168/129

240/170

283/186

291/192

301/195

4V FR500 Ported Houston Performance Alum

N/A

38mm/ 31mm

N/A

95/63

175/137

251/181

306/205

330/219

340/226

4V '93-'98 "B" Stock Gamrace Alum

N/A

37mm/30mm
3.57

N/A

144/106

194/126

218/145

234/146

230/152

4V '93-'98 "B" Sportman CNC Gamrace Alum

N/A

37mm/30mm
3.57

N/A

166/113

230/140

262/160

280/165

277/170

4V '93-'98 "B" Stage 2 CNC Gamrace Alum

N/A

37mm/30mm
3.57

N/A

166/119

230/153

262/189

280/204

277/215

4V "B" Alum

N/A

37mm/ 30mm

N/A

92/67

153/123

214/143

230/154

259/161

4V "B" Ported Fox Lake Alum

N/A

37mm/ 30mm

N/A

99/89

177/154

248/202

284/221

311/233

323/238

4V Cobra 92-98 "B" 99-02 "C" Ported Fox Lake Alum

N/A

37mm/ 30mm
3.55

N/A

241/219

293/249

315/264

324/270

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

4V '97 Cobra 5.0 S/F Alum

N/A

37mm/ 30mm

N/A

168/141

224/162

246/167

249/168

4V '99 Cobra 5.0 S/F Alum

N/A

37mm/ 30mm

N/A

170/140

220/160

237/169

243/169

4V Cobra Stock Alum

N/A

37mm/ 30mm

N/A

260/201

4V Cobra Ported Fox Lake Stage 3 Alum

N/A

350/300

4V Cobra M2 Race Systems Alum

N/A

37mm/ 30mm
3.575

N/A

89/67

168/121

224/160

253/179

267/182

275/185

280/186

4V Cobra CNC M2 Race Systems Alum

219/-

37mm/ 30mm
3.575

N/A

89/75

168/140

234/181

284/210

304/224

321/231

325/236

4V Cobra Stage I Ported TMS Alum

N/A

290/195

4V Cobra Stage II Ported TMS Alum

N/A

306/202

4V Cobra '96-'98 Ported TEA Alum

N/A

87/76

155/153

228/214

283/248

305/269

4V Cobra '03-'up Ported TEA Alum

N/A

89/73

174/149

255/209

300/243

324/263

4V Cobra '03 Ported BES Alum

N/A

37mm/ 30mm

N/A

183/152

250/190

294/210

316/223

322/228

4V Navigator '04 Alum

N/A

37mm/ 30mm
-
1 3/4" Pipe

N/A

91/69

157/122

212/145

238/154

257/163

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

4V Navigator '04 CNC Alum

N/A

37mm /30mm
-
1 3/4" Pipe

N/A

96/81

160/139

228/186

277/216

302/235

4V Navigator Ported Fox Lake SF600 Alum

N/A

-
3.55
No Pipe

N/A

94/88

182/158

247/204

279/225

304/236

310/238

314/242

4V '03 5.0 S/F Alum

N/A

37mm/ 30mm
3.57

N/A

95/74

161/126

226/159

259/171

266/175

268/176

4V '03 Ported Huston Performance Alum

N/A

38mm/ 31mm

N/A

98/68

189/140

266/189

315/214

331/229

342/237

4.6L 4V '96-'98 Ported Stage 1 C.A.P.A. Performance Alum

N/A

272/172

4.6L 4V '96-'98 Ported Stage 2 C.A.P.A. Performance Alum

N/A

287/194

4.6L 4V '96-'98 Ported Full C.A.P.A. Performance Alum

N/A

304/241

4.6L 4V '99-'01 Ported Stage 1 C.A.P.A. Performance Alum

N/A

257/185

4.6L 4V '99-'01 Ported Stage 2 C.A.P.A. Performance Alum

N/A

273/195

4.6L 4V '99-'01 Ported Full C.A.P.A. Performance Alum

N/A

288/237

4.6L 4V '99-up PowerHeads SF600 Alum

N/A

37mm/ 30mm

N/A

93/78

170/127

221/167

245/184

257/189

258/193

258/195

4.6L 4V '99-up Ported PowerHeads SF600 Alum

N/A

95/85

173/157

243/195

290/209

305/217

307/220

307/224

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

4.6L 4V '99-up Ported TEA Alum

N/A

95/85

178/165

245/225

283/247

307/255

313/259

320/260

4.6L 4V Ported Patriot Performance Stage 1.5 Alum

N/A

-
3.552

N/A

97/75

178/136

245/187

289/214

308/225

313/230

316/233

5.0L 4V '11 Alum

193/-

37mm/ 31mm

N/A

5.0L 4V '11- Ported TEA Alum

N/A

37mm/ 31mm
3.70
Pipe

N/A

91/82

165/160

228/206

283/219

305/228

318/231

4V '08/'09 GT500 - Cobra '13 Ported BES Alum

N/A

37mm/ 32mm

N/A

94/80

179/160

245/205

290/229

331/237

344/240

355/242

361/-

364/-

4V GT500 Ported Fox Lake Alum

N/A

37mm/ 32mm

N/A

99/96

189/198

254/248

305/269

334/282

344/294

350/299

Coyote Gen 1 JPC Racing SF600 Alum

N/A

37mm/ 31mm
3.63
1 3/4" Pipe

N/A

99/72

180/148

243/180

280/190

289/201

298/202

Coyote Stage 1 Ported JPC Racing SF600 Alum

201/84

1.452/1.222
3.63
1 3/4" Pipe

N/A

100/87

187/151

252/194

290/210

312/218

318/220

320/222
@.650

Coyote Stage 2 Ported JPC Racing SF600 Alum

202/85

1.452/1.222
3.63
1 3/4" Pipe

N/A

100/87

197/158

266/201

303/213

321/224

335/232

337/235
@.650

Coyote Stage 3 Ported JPC Racing SF600 Alum

208/88

1.50/1.262
3.63
1 3/4" Pipe

N/A

102/88

205/160

271/205

305/221

327/232

339/243

342/249
@.650

Coyote Gen II Stage 3 Ported Livernois SF600 Alum

215/102

1.50/1.262

100/86

192/152

266/198

316/222

341/234

352/238

362/240

Coyote Gen 3 5.0l Stage 3 Ported Livernois SF1020 Alum

N/A

1.50/1.262

107/99

211/161

280/200

320/219

348/230

368/238

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

Coyote Gen 2 Alum

N/A

37.3mm/ 31.8mm

Coyote Gen 3 Alum

205/-

37.7mm/ 32mm

Coyote 5.0l '11-14 Slawko Alum

N/A

37mm/ 31mm

N/A

85/75

171/149

238/172

284/180

310/184

318/188

321/189
@.650

Coyote 5.0l '11-14 Ported Slawko Alum

N/A

37mm/ 31mm

N/A

94/88

189/176

260/215

302/230

330/239

339/245

346/247
@.650

Coyote 5.0l '15+ Slawko Alum

N/A

37.3mm/ 31.8mm
3.63

N/A

100/77

202/154

260/179

300/190

324/194

330/199

333/200
@.650

Coyote 5.0l '15+ Ported Slawko Alum

N/A

37.3mm/ 31.8mm
3.63

N/A

100/84

189/167

268/200

319/227

347/242

367/248

370/252
@.650

Coyote Voodoo GT350 5.2l Ported Slawko Alum

N/A

38.3mm/ 32.5mm

N/A

96/82

192/156

267/202

312/225

338/240

357/250

ProMaxx Shocker 2V Alum

185/-

1.78/1.45

N/A

64/52

116/98

162/135

192/162

213/182

217/189

218/193

ProMaxx Shocker 2V Alum

185/-

1.84/1.45

N/A

68/52

121/98

169/136

203/162

219/182

227/189

233/193

Trick Flow Twisted Wedge 2V SF600 Alum

185/93

1.84/1.45

38/42

56/43

122/96

173/135

213/164

233/175

241/177

236/180

Trick Flow Twisted Wedge 2V SF600 Alum

185/93

1.84/1.45
3.564

58/46

124/99

176/141

218/170

241/175

242/183

Trick Flow Twisted Wedge 2V Alum

185/93

1.84/1.45
3.564
1 3/4" Pipe

N/A

58/49

125/101

175/143

224/174

250/179

252/188

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.550

.600

.700

.800

.900

Average

Trick Flow Twisted Wedge 2V CNC Alum

195/95

1.90/1.47

Trick Flow Twisted Wedge 2V Ported HRM Alum

N/A

1.84/1.45
3.564

N/A

71/60

139/108

195/151

238/183

268/197

291/206

Trick Flow Twisted Wedge 2V CNC Chamber TFS-51910001-CNC SF600 Alum

185/93

1.84/1.45
3.562
1 3/4" Pipe

38/42

59/57

131/107

188/151

230/188

250/204

257/211

Trick Flow Twisted Wedge 2V Fox Lake SF600 Alum

N/A

1.84/1.45
3.552

N/A

66/60

121/102

185/141

223/179

239/197

241/201

242/203

Trick Flow Twisted Wedge 2V Ported Fox Lake SF600 Alum

N/A

1.84/1.45
3.552

N/A

67/62

124/106

189/143

227/190

255/205

263/209

271/211

Trick Flow Twisted Wedge 2V Ported Fox Lake MMFF Alum

N/A

1.84/1.45
3.552

N/A

69/62

130/118

189/158

235/195

259/189

269/195

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford 289 Iron

N/A

1.78/1.45

N/A

165/107

Ford 289 Iron

N/A

1.78/1.45

N/A

45/41

91/72

132/95

154/111

166/120

166/125

Ford 289 HiPo Iron

N/A

1.78/1.45

53.5

99/72

139/98

161/113

170/121

177/125

Ford 289-302-5.0 PowerHeads SF600 Iron

N/A

1.78/1.45

N/A

52/39

95/74

132/96

141/104

154/107

152/107

Ford 289-302-5.0 Ported PowerHeads SF600 Iron

N/A

1.94/1.60

N/A

64/62

122/109

174/150

202/169

215/175

219/180

Ford 302 '73 CCM Iron

N/A

1.78/1.45
4.03
1 3/4" Pipe

56/43

107/79

141/110

155/120

163/125

167/129

Ford 302 E7TE Iron

127/44

1.78/1.45

N/A

52/39

95/74

132/98

143/104

159/109

Ford 302 E7TE Iron CCM

127/44

1.78/1.46

N/A

59/39

109/73

142/100

148/110

150/113

Ford 302 E7TE Iron MMFF

N/A

1.78/1.46

N/A

55/40

110/75

142/101

160/110

157/112

155/111

Ford 302 E7TE Ported Thumper Iron

N/A

1.78/1.46

N/A

73/54

121/104

178/135

197/150

219/155

220/160

Ford 302 E7TE Ported PowerHeads SF600 Iron

N/A

1.90/1.60

N/A

63/62

124/109

189/150

213/169

217/174

Ford 302 E7TE Ported McCoy Iron

N/A

240/166

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford '68 Tunnel Port C8FE Brent Lykins SF600 Iron

209.4/-

1.98/1.55
4.155

56.8

70/59

124/92

166/120

200/135

231/145

250/150

257/155

Ford GT-40 E7TZ

145/55

1.84/1.54

64/52

111/98

159/125

183/129

187/129

192/129

Ford GT-40P MMFF

N/A

1.84/1.46

54/46

118/93

158/115

183/123

185/126

Ford GT-40P E7TZ CCM

145/55

1.85/1.46

58/45

121/88

159/112

186/125

190/127

195/128

Ford GT-40X Iron CCM

176/-

1.94/1.54

57/49

110/89

162/123

193/150

215/155

230/155

Ford GT-40X Ported Iron

N/A

1.94/1.54

N/A

63/50

125/99

184/145

224/170

245/178

254/174

Ford GT-40X X302 X306 X307 Alum

178/62

1.94/1.54

64/58

239/170

Ford GT-40 Y303 Alum

166/54

1.94/1.54

64/52

114/98

166/128

199/136

212/134

217/-

Ford GT-40 X303 X305 Alum

178/62

1.94/1.54

64/58

64/60

130/112

184/143

220/163

238/173

249/175

Ford GT-40 Y302 Alum

160/53

1.94/1.54

N/A

Ford GT-40 Y302 Y303 (SVO) Ported Gamrace Alum

163/-

1.94/1.54

135/110

182/145

225/166

258/182

274/189

270/193

Ford Z304 Alum MMFF

N/A

2.02/1.60

66/55

143/107

192/156

239/186

270/200

267/210

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford Z304 Alum

204/85

2.02/1.60

65/56

135/113

199/172

245/200

272/213

Ford Z304 Westech Alum

200/-

2.02/1.60

61/50

132/95

187/131

234/160

252/174

259/180

262/180

Ford Z304 CNC Alum

N/A

2.02/1.60

69/61

149/110

225/159

278/192

314/221

Ford Z304 Ported ET Performance Alum

226/-

2.08/1.60
4.03

76/54

147/108

221/154

273/197

300/214

314/223

326/232

Ford Z304 Ported Gamrace Alum

220/-

2.08/1.60

205/150

260/193

295/220

312/229

318/238

Ford Z304 Ported Gamrace Alum

230/-

2.08/1.60

203/150

266/193

295/220

318/229

335/238

Ford 351 Iron

N/A

1.84/1.54

177/142

Ford 351 Iron

N/A

1.84/1.54

106/90

152/107

171/113

181/115

189/115

Ford 351 PowerHeads SF600 Iron

N/A

1.84/1.54

N/A

56/39

99/74

136/96

151/104

163/107

166/109

Ford 351 Ported PowerHeads SF600 Iron

N/A

1.94/1.60

N/A

69/62

128/109

182/150

206/169

225/175

232/180

Ford 351 Ported Darrell Iron

160/-

2.00/1.585
-
1 3/4" Pipe

125/108

179/144

218/170

246/181

249/181

Ford 351 DOOE Iron

N/A

1.90/1.60
4.00
No Pipe

69/45

111/80

153/105

183/109

183/111

183/113

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford N351 Iron

195/67

2.02/1.60
4.04
No Pipe

141/97

160/127

212/142

232/161

244/169

255/172

Ford N351 Ported Stage 2 Beasley Engineering Iron

206/73

2.02/1.60
4.04
No Pipe

137/94

165/133

221/167

257/208

278/221

296/236

Ford N351 Ported Full Beasley Engineering Iron

219/78

2.08/1.60
4.04
No Pipe

87/59

155/103

203/143

251/208

287/226

305/246

309/254

Ford N351 CNC M2 Race Systems Iron

219/-

2.08/1.60

198/122

241/175

268/208

279/220

292/227

303/232

Ford N351 Tri-Mark Iron

194/-

2.02/1.60

N/A

61/60

120/107

173/126

210/140

230/158

235/169

236/176

Ford N351 Ported Tri-Mark Stealth Iron

200/-

2.02/1.60

N/A

70/59

145/112

200/147

230/177

247/191

257/199

263/204

Ford N351 Stock Bill Jones BUT 2.05 Iron

N/A

2.05/1.60
4.03
No Pipe

N/A

64/50

119/98

160/125

195/137

223/149

233/161

Ford N351 Ported Bill Jones Iron

N/A

2.05/1.60
4.03
No Pipe

N/A

68/54

128/102

183/154

221/181

253/195

276/206

Ford N352 Tri-Mark Iron

185/-

2.02/1.60

N/A

61/60

120/107

173/126

210/140

230/158

235/169

236/176

Ford N352 Ported Tri-Mark Stealth Iron

197/-

2.02/1.60

N/A

70/59

135/112

197/147

223/177

242/191

257/199

263/204

Ford N352 Ported Tri-Mark Super Stealth Iron

N/A

2.02/1.60

N/A

69/55

149/112

200/149

231/177

255/197

271/208

280/215

Ford SC1 Ported Bullet Cylinder Heads Small Port Volume

N/A

2.18/1.60

N/A

77/60

160/109

221/155

278/190

321/226

345/252

370/261

380/266

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford SC1 Ported ET Performance

272/-

2.18/1.60
4.155

68/56

151/114

225/166

291/205

343/223

371/232

382/240

389/246

Ford SC1 Head Circle Ported HRD

N/A

2.18/1.625

N/A

157/111

232/176

297/224

342/254

383/269

398/278

413/286

Ford SC1 Bennett Ported

N/A

2.20/1.60

N/A

420/290

Ford SC1 CNC M2 Race Systems

273/-

2.18/1.60
4.155

58/50

129/105

205/155

276/209

328/237

374/249

405/253

412/261

Ford SC1 Ported BES

484/187

2.225/1.625

133/100

224/142

292/187

343/228

379/255

408/269

430/277

434/285

438/293

Ford 233 Raised Seat Ported Chapman

233/-

2.15/1.60
-
No Pipe

71/53

149/114

236/152

282/190

327/228

358/238

360/251

364/255

Ford Yates/C3L/C3

210/119

2.10/1.60

N/A

Ford Yates/C3L Ported SF600

N/A

2.10/1.60
4.07
No Pipe

N/A

73/54

148/112

234/152

289/206

325/225

340/243

348/258

Ford Yates/C3L 215 Ported Chapman

215/-

2.125/1.60
-
No Pipe

70/53

146/114

228/152

291/190

332/228

347/238

347/251

Ford Yates/C3L 221 Ported Chapman

221/-

2.10/1.60
-
No Pipe

72/53

145/110

215/162

285/202

313/228

328/239

340/247

Ford Yates/C3L/C3 233 Ported Chapman

233/-

2.10/1.60
-
No Pipe

50-60

75/53

143/110

220/162

286/202

310/228

328/239

337/247

Ford Yates/C3 239 Ported Alum

239/-

2.10/1.60
4.06
2 1/4" Pipe

N/A

73/54

146/104

217/145

269/179

306/206

317/229

311/244

318/268

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford Yates/C3L Ported

241/-

2.15/1.585

150/102

226/151

286/200

334/226

361/240

366/245

Ford Yates/C3L Ported Automotive Specialists

242/-

2.10/1.60

154/119

226/164

276/198

322/220

341/229

345/236

Ford Yates/C3 Ported Greg Good

N/A

2.125/1.625
-
No Pipe

N/A

243/172

300/212

331/236

362/252

374/260

381/264

Ford Yates/C3 Cup Head Ported HRD

N/A

2.16/1.58

N/A

145/114

224/171

291/232

339/252

364/265

379/272

Ford Yates/C3 Cup Head

N/A

362/262

383/278

388/286

391/296

Ford C35

210/119

2.10/1.60

N/A

Ford C35 Head Ported HRD

N/A

2.125/1.60

N/A

150/115

233/153

302/225

339/250

357/266

366/274

Ford C3H Ported

N/A

2.20/1.60

N/A

400/275

Ford D3 Head Circle Ported HRD

N/A

2.16/1.61

N/A

161/111

246/161

315/215

346/246

381/261

395/270

404/276

Ford D3 Head Circle Ported HRD

N/A

2.18/1.625

N/A

149/120

243/169

310/229

355/250

386/258

401/256

410/273

Ford D3 Head Drag Ported HRD

285/-

2.20/1.61

N/A

149/115

238/169

311/226

350/251

383/265

405/272

418/285

430/291

Ford D3 Head Ported MBE

308/162

2.20/1.60
-
No Pipe

N/A

140/102

224/146

305/195

370/228

412/259

442/270

449/275

451/278

453/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ford D3 Head Ported MBE I-55 E-55 SF1020

324/162

2.225/1.57
4.155
No Pipe

N/A

133/99

221/147

301/192

364/220

406/240

438/261

444/270

442/275

450/280

Ford D3 Head Ported

280/150

2.18/1.625

154/101

230/140

301/206

351/237

381/253

393/263

400/272

Ford D3 Head Ported

N/A

2.20/1.60

N/A

123/140

196/140

267/187

331/220

368/245

393/263

400/272

413/281

417/287

AFR 165 Street SF600 Alum

165/69

1.90/1.60
4.06
1 3/4" Pipe

58-64

123/118

186/153

225/178

243/185

250/191

AFR 165 Street CCM Alum

165/-

1.90/1.60

N/A

60/51

123/108

176/144

210/174

232/184

232/188

235/189

AFR 165 #1402 Weingartner Racing Alum

N/A

1.90/1.60
4.155

N/A

57/54

113/112

171/151

216/180

236/191

238/195

244/197

247/-

AFR 165 Street Nitrous Exhaust SF600 Alum

165/69

1.90/1.60
4.06
1 3/4" Pipe

58-64

123/129

186/171

225/199

243/211

250/218

AFR 165 Comp SF600 Alum

N/A

1.90/1.60
4.06
1 3/4" Pipe

129/121

186/155

228/192

242/207

254/215

AFR 165 CNC SF600 Alum

165/68

1.90/1.60
4.06
1 3/4" Pipe

55-60

135/122

200/163

240/192

251/208

260/215

AFR 165 Ported CCM Alum

N/A

1.90/1.60
4.03
1 3/4" Pipe

N/A

59/57

127/114

189/164

225/194

245/203

252/209

AFR 185 Street/Strip SF600 Alum

185/69

2.02/1.60
4.06
1 3/4" Pipe

58-64

129/118

189/153

234/178

267/185

277/191

AFR 185 Street/Strip Nitrous Exhaust SF600 Alum

185/69

2.02/1.60
4.06
1 3/4" Pipe

58-64

129/129

189/171

234/199

267/211

277/218

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 185 Comp SF600 Alum

N/A

2.02/1.60
4.06
1 3/4" Pipe

N/A

136/125

200/180

245/211

272/225

287/231

AFR 185 Comp Ported CCM Alum

N/A

2.02/1.60
4.03
1 3/4" Pipe

N/A

66/59

148/113

202/162

242/199

274/215

286/222

296/227

AFR 185 CNC SF600 Alum

185/70

2.02/1.60
4.06
1 3/4" Pipe

N/A

142/118

200/164

255/200

285/210

297/215

AFR 185 Street Ported ET Performance Alum

N/A

2.02/1.60
4.03

78/56

152/123

214/155

252/183

266/196

284/201

289/204

AFR 185 Enforcer Small Valve SF600 Alum

185/64

1.90/1.60

123/105

175/143

208/163

232/166

251/170

AFR 185 Enforcer SF600 Alum

185/64

2.02/1.60

119/105

177/143

225/163

255/166

260/170

AFR 190 Enforcer SWP Alum

190/-

2.02/1.60

65/59

113/100

164/140

214/160

245/168

259/170

AFR 190 Ported SF600 Alum

190/-

2.02/1.60
4.060
1 3/4" Pipe

N/A

152/121

211/158

257/193

290/214

310/222

AFR 195 CNC SF600 Alum

195/70

2.02/1.60
4.06
1 3/4" Pipe

N/A

152/126

208/171

260/207

287/222

308/231

AFR 205 Race SF600 Alum

205/70

2.08/1.60
4.125
1 7/8" Pipe

141/125

201/180

251/211

291/225

306/231

310/235

AFR 205 Race Nitrous Exhaust SF600 Alum

205/70

2.08/1.60
4.125
1 7/8" Pipe

141/121

201/173

251/208

291/231

306/240

310/244

AFR 205 Ported ET Performance Alum

205/-

2.08/1.60
4.03

76/57

145/116

205/156

259/185

296/200

307/207

308/210

316/214

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

AFR 205 Race SF600 Alum

205/70

2.08/1.60
4.06
1 3/4" Pipe

149/126

205/170

260/210

291/227

315/231

327/234

AFR 205 Race Nitrous Exhaust SF600 Alum

205/73

2.08/1.60
4.06
1 3/4" Pipe

149/121

205/173

260/208

291/231

315/240

327/244

AFR 220 CNC SF600

220/70

2.10/1.60
4.125
1 7/8" Pipe

58-69

154/129

207/188

267/230

302/245

321/251

333/255

340/258

AFR 220 Renegade SF600

220/70

2.10/1.57

58-72

135/121

194/171

258/215

295/238

315/245

325/249

331/250

AFR 225 Old Race SF600

225/80

2.08/1.60
4.125
1 7/8" Pipe

149/130

216/187

264/230

295/242

312/250

320/255

AFR 225 Race SF600

225/80

2.08/1.60
4.125
1 7/8" Pipe

143/130

211/187

260/230

289/242

317/255

325/258

AFR 225 Out of Box

225/80

2.08/1.60

147/110

205/152

257/211

287/225

299/229

312/230

AFR 225 Ported ET Performance

225/-

2.08/1.60
4.03

74/56

146/115

207/157

262/195

299/210

312/219

323/223

327/-

Avenger Alum

N/A

2.02/1.60

270/205

Avenger 185 CNC Alum

185/80

2.02/1.60

60/70

69/59

129/118

188/153

234/178

269/189

278/195

281/210

288/228

Avenger 205 CNC Alum

205/80

2.05/1.60

60/70

70/61

142/124

190/162

252/200

284/218

299/225

305/230

309/235

Avenger 215 CNC Alum

215/80

2.05/1.60

60/70

75/61

146/106

194/162

254/200

287/216

300/226

310/235

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Avenger 230 CNC 20 Deg Alum

230/82

2.08/1.60

60/70

74/68

147/125

205/178

258/215

289/227

308/235

318/245

322/245

Avenger 230 R CNC 20 Deg Alum

230/82

2.08/1.60

60/70

78/68

150/125

212/178

260/215

291/227

315/235

329/245

339/245

Avenger R Alum MMFF

N/A

2.08/1.60

80/65

135/95

182/128

231/145

272/168

296/179

302/202

Avenger AK-400 CNC Alum

270/-

2.15/1.60

47/52

79/57

154/112

212/147

275/197

325/227

371/242

409/257

417/266

Avenger SX1-SC1 CNC Alum

260/105

2.15/1.60

46/68

76/56

144/110

212/145

279/197

326/222

372/238

391/252

412/266

Blue Thunder Alum

220/-

N/A

360/270

Blue Thunder Out of Box Alum

N/A

2.15/1.625

N/A

84/71

160/130

236/168

293/193

332/214

361/224

Blue Thunder Ported Flatlanders Stage 3 Alum

220/

2.20/1.71

N/A

400/300

Blue Thunder Ported Flatlanders Comp Alum

N/A

2.225/1.70
4.155

N/A

423/311

Blue Thunder 4.3 Ported ET Performance Alum

270/-

2.18/1.60
4.155

66/52

145/116

221/155

302/180

350/225

400/245

408/258

410/265

414/274

416/280

Blue Thunder 4.3 Ported ET Performance Alum

290/-

2.20/1.60
4.125

67/52

147/116

227/155

313/180

368/225

411/245

422/258

427/265

435/274

440/280

Blue Thunder 4.3 Ported ET Performance Alum

300/-

2.25/1.60
4.125

67/52

144/104

239/138

314/165

367/186

408/234

434/250

437/260

436/274

440/280

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Blue Thunder 3.6 Ported ET Performance Alum

255/-

2.20/1.625
4.155

74/62

145/110

209/148

271/181

321/209

351/231

362/243

370/252

Blue Thunder 3.6 Ported BES Alum

N/A

2.225/1.71

142/96

213/136

281/178

342/211

390/239

413/266

414/282

414/295

417/305

Blue Thunder Ported CPF SF600 Alum

N/A

2.26/-
4.125

N/A

62/-

139/-

224/-

317/-

381/-

425/-

439/-

450/-

453/-

458/-

Blue Thunder Ported SF600 Alum

N/A

-
4.155

N/A

59/-

133/-

220/-

305/-

358/-

413/-

426/-

431/-

Brodix SP FO Alum

195/-

2.08/1.60

120/103

180/130

224/153

241/166

255/179

267/191

270/202

Brodix Track 1 53/119 Alum

195/-

2.08/1.60

124/100

172/129

212/153

241/166

255/176

261/180

Brodix T1 F Std X SUPR Alum

195/-

2.08/1.60

120/103

180/130

224/159

255/179

267/191

270/202

Brodix Track 1 X 53/119 Alum

195/-

2.08/1.60

124/100

172/134

212/164

241/184

255/195

261/203

Brodix Track 1 CNC M2 Race Systems 53/119 Alum

211/-

2.08/1.60
4.03

136/115

194/156

247/198

287/214

312/220

315/225

Brodix Track 1 Ported Alum

N/A

2.08/1.60

N/A

63/50

148/102

223/149

272/216

305/246

316/261

324/268

334/271

336/273

338/275

Brodix Trac 1 20 Deg Ported Weingartner Racing

N/A

2.10/1.60
4.155
No Pipe

71/50

139/106

195/149

241/180

285/210

320/232

338/246

344/254

348/260

349/261

Brodix T1 Std 20 Deg CNC M2 Race Systems 53/119 Alum

211/-

2.08/1.60

150/124

216/164

263/196

300/211

316/217

317/224

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix T1 STS Std 214 20 Deg CNC 53/119 Alum

214/-

2.08/1.60

140/119

210/161

265/190

298/203

320/212

326/220

Brodix T1 STS Std 225 20 Deg CNC 53/119 Alum

225/-

2.08/1.60

147/119

215/161

262/190

303/203

324/212

334/220

Brodix T1 STS STD X RI 267 20 Deg CNC 53/119 Alum

267/-

2.14/1.60

142/106

200/151

263/190

314/217

332/235

351/251

Brodix T1 Std 20 Deg Ported Jones Engineering I-45 E-45 Alum

218/-

2.08/1.60

126/95

185/128

239/177

282/212

306/224

313/230

319/236

Brodix ST 5.0 & ST 5.0 R 20 Deg 53/119 Alum

171/-

1.94/1.60

130/100

186/132

225/156

237/172

241/184

Brodix ST 5.0 R 20 Deg CNC M2 Race Systems 53/119 Alum

185/-

2.02/1.60
4.03

145/119

208/150

245/179

272/198

277/209

281/216

Brodix ST 5.0 R Ported Speier Racing Headss V2.50 SF600 53/119 Alum

N/A

2.08/1.60
4.06
1 7/8" Pipe

134/111

194/147

240/180

272/203

294/217

310/229

322/233

327/238

328/242

Brodix ST 5.0 R Ported Speier Racing Headss 53/119 Alum

225/-

2.10/1.60
4.06

138/113

199/148

238/180

276/203

303/217

321/227

327/235

333/239

337/241

Brodix ST 5.0 Ported Fox Lake 53/119 Alum

187/80

2.02/1.60
4.03

201/147

243/192

269/211

285/219

Brodix IK F 20 Deg 195 Alum

195/-

2.02/1.60

68/74

139/87

182/130

224/158

252/172

267/180

270/184

Brodix KC LH F 17 Deg 195 CNC 53/119 Alum

195/-

2.02/1.60

154/119

219/169

260/200

287/209

294/214

300/214

Brodix KC LH F 17 Deg 210 CNC 53/119 Alum

210/-

2.08/1.60

151/113

223/166

269/200

300/217

319/222

323/222

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix KC 195 S 17 Deg Keith Craft 53/119 Alum

195/-

2.02/1.60
2" Pipe

155/114

217/162

266/202

293/223

300/234

305/235

Brodix KC 210 S 17 Deg Keith Craft 53/119 Alum

210/-

2.08/1.60
2" Pipe

146/117

211/171

261/216

297/237

322/247

328/252

325/254

Brodix Neal BF200 Ported Alum

248/-

2.125/1.60

165/110

224/151

279/201

325/231

355/244

364/253

Brodix Neal BF200 Ported Al Neal Alum

293/-

2.125/1.60

177/109

245/148

309/206

333/234

365/245

388/267

Brodix Neal BF200 Ported TEA Alum

318/-

2.225/1.60
4.155
Pipe

40-47

63/58

137/119

227/161

299/228

359/271

393/292

414/303

421/310

428/316

435/320

Brodix Neal BF201-202 Ported Alum

255/-

2.18/1.60

153/105

218/143

277/200

333/236

370/249

388/258

391/263

Brodix Neal BF201 Ported Chapman Alum

287/157

2.18/1.625
-
No Pipe

44.5

64/52

142/107

221/164

284/208

339/236

379/242

385/251

387/254

Brodix Neal BF202 Alum

277/-

2.18/1.60

136/109

221/165

276/207

327/235

368/245

391/253

Brodix Neal BF202 used CHW Alum

280/156

2.18/1.60
-
No Pipe

66/57

139/100

193/128

245/177

290/196

311/211

331/228

352/244

Brodix Neal BF202 Ported Bennett Alum

N/A

425/300

Brodix Neal BF202 Ported TEA Alum

260/-

2.125/-

N/A

380/-

Brodix Neal BF202 Ported TEA Alum

295/-

N/A

400/-

Brodix Neal BF202 Ported TEA Alum

311/-

N/A

70/61

145/116

227/163

304/226

365/264

398/284

420/296

432/306

Brodix Neal BF202 Ported TEA Alum

311/-

2.20/1.60

56-58

64/61

137/116

230/163

300/226

360/264

389/284

411/296

424/306

Brodix Neal BF202 Ported BES Alum

N/A

2.225/1.58

136/98

215/141

276/184

336/220

390/254

423/272

436/280

437/286

440/290

Brodix Neal Bennett Ported

N/A

420/280

Brodix Neal BF300-301 Ported Alum

196/-

2.125/1.60

152/122

214/166

265/195

300/213

325/220

331/225

334/228

Brodix BF301 HRD Ported Alum

N/A

2.125/1.60

143/128

218/172

290/221

321/230

354/259

362/266

Brodix Neal Ported ET Performance Alum

N/A

2.10/1.60
4.125

N/A

70/53

147/110

230/164

291/205

344/232

380/250

406/261

406/269

410/275

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Brodix BP HH F 302 15 Deg Alum

302/-

2.18/1.60

159/93

215/138

277/196

339/222

373/236

397/243

413/247

Brodix HH 15 Deg Out of Box Weingartner Racing Alum

N/A

2.18/1.60
4.155
No Pipe

67/48

139/98

208/141

261/180

319/208

360/228

385/236

372/243

373/247

384/249

Brodix HH 15 Porter Weingartner Racing Alum

N/A

2.20/1.60
4.155
No Pipe

72/52

154/101

225/150

280/192

329/219

369/237

390/246

391/253

395/255

400/257

Brodix 15 Deg Ported Speier Racing Heads I-50 E-50 Alum

312/-

2.18/1.60
4.185
2" Pipe

N/A

138/110

214/156

271/193

324/223

367/247

400/259

410/264

413/269

415/271

BMF 10 Deg Ported BES Alum

N/A

2.25/1.60

150/104

234/149

311/186

361/221

397/244

417/259

408/270

419/281

429/285

Canfield 170 Alum

170/-

2.02/1.60
-
No Pipe

123/89

166/123

207/148

237/174

Canfield 192 SF600 Alum

192/-

2.02/1.60
-
No Pipe

54/58/65

70/54

150/102

204/132

242/171

262/190

272/201

274/207

Canfield 193 Out of Box plus VJ SF600 Alum

193.7/-

2.02/1.60
-
1 3/4" Pipe

N/A

78/63

157/108

209/140

251/178

268/193

280/203

283/210

Canfield 195 VJ SF600 Alum

195/-

2.02/1.60
4.03
1 3/4" Pipe

54/58/65

150/107

203/131

243/171

263/183

272/190

276/201

281/209

Canfield 215 Ported TEA Alum

215/-

N/A

66/54

144/116

219/165

261/211

281/237

300/253

310/264

Canfield Ported Fox Lake Alum

N/A

2.02/1.60

277/217

300/230

Canfield Ported Alum

N/A

2.02/1.60
4.125
2" Pipe

N/A

133/102

191/152

243/185

276/206

288/216

300/221

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Canfield Ported Doug Alum

N/A

2.02/1.60

N/A

68/61

138/118

208/167

255/198

282/211

296/224

CFE ProKing 10 Deg Alum

N/A

-/255

410/-

Dart '98 Flowtech - Steven Magnotti 3 Angle VJ SF110 Alum

197/-

2.02/1.60
4.00
No Pipe

N/A

61/49

120/101

164/125

199/146

218/156

242/160

254/-

Dart Windsor Kendrick Auto

N/A

2.02/1.60

N/A

75/58

127/115

175/122

214/154

235/168

247/171

250/171

Dart Windsor Ported Kendrick Auto

N/A

2.02/1.60

N/A

79/59

149/120

184/144

238/179

267/195

295/202

301/205

Dart 20 Deg Ported Weingartner Racing

225/-

2.10/1.60
4.155
No Pipe

63/47

140/99

203/146

254/192

298/217

321/231

319/240

321/242

323/243

328/245

Dart 180 Iron Eagle

180/73

1.94/1.60
4.03
No Pipe

125/112

178/139

226/152

247/159

256/161

260/163

Dart 200 Iron Eagle

200/73

2.02/1.60
-
No Pipe

58/62

154/112

208/139

254/152

271/159

274/161

276/163

Dart 215 Iron Eagle

215/73

2.05/1.60
-
No Pipe

58/62

150/112

205/139

255/152

287/159

299/161

304/163

Dart PRO1 170 No Back Cut Alum

170/65

1.94/1.60
4.03
No Pipe

137/112

200/151

240/171

251/173

261/172

Dart PRO1 195 No Back Cut Alum

195/75

2.02/1.60
4.155
No Pipe

145/116

205/150

246/172

272/180

283/184

288/185

Dart PRO1 210 CNC 20 Deg SF600 Alum

210/76

2.05/1.60
4.03
No Pipe

132/108

195/151

252/187

287/203

305/208

304/212

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Dart PRO1 225 CNC 20 Deg SF600 Alum

225/85

2.08/1.60
4.155
No Pipe

136/115

201/164

259/205

300/225

323/231

325/238

Dart PRO1 CNC 20 Deg Alum

225/87

2.08/1.60
4.155
No Pipe

136/115

201/164

259/205

300/225

323/230

325/235

Edelbrock E-Street 5023, 5025 SF1020 Alum

170/60

1.90/1.60

65/42

121/92

174/130

216/150

242/162

249/168

Edelbrock E-Street 5023, 5025 SF1020 Alum

170/60

2.02/1.60

65/42

121/92

174/130

216/150

242/162

249/168

Edelbrock E-Street Ported Fox Lake SF600 Alum

200/-

2.02/1.60
4.03

N/A

72/69

140/120

208/175

250/199

273/217

303/235

Edelbrock 6022, 6032 OLD Alum

170/60

1.90/1.60

72/57

132/104

183/142

214/163

225/170

224/174

Edelbrock 6025, 6035 OLD Alum

170/60

2.02/1.60

70/57

128/104

183/142

219/163

229/172

226/174

Edelbrock Performer 60329, RPM 60299 SF1020 Alum

170/60

1.90/1.60

N/A

72/57

132/104

183/142

216/159

245/170

249/174

244/175

Edelbrock Performer 60359, RPM 60259, 60399 Alum

170/60

2.02/1.60

N/A

70/57

128/104

183/142

219/163

251/170

255/174

246/175

Edelbrock Performer RPM Ported Fox Lake SF600 Alum

200/-

2.02/1.60
4.03

73/65

142/118

208/159

247/204

277/221

300/230

Edelbrock Performer 5.0/5.8l 60289, 60379 SF1020 Alum

170/60

1.90/1.60

72/57

131/105

185/131

214/156

223/168

226/175

Edelbrock Performer 5.0/5.8l 60299, 60399 SF1020 Alum

170/60

2.02/1.60

70/57

130/104

185/142

219/163

229/172

226/175

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock/ Glidden 51319 CNC Alum

169/68

1.94/1.57

72/60

140/115

203/165

247/192

260/203

261/207

Edelbrock/ Glidden 51309 CNC Alum

188/68

2.02/1.57

77/60

147/115

212/165

259/192

284/203

293/207

285/209

Edelbrock/ Glidden Victor Ported ET Performance Alum

300/-

2.16/1.57
4.125

66/50

140/114

212/153

281/186

323/220

355/244

372/256

378/267

383/273

Edelbrock/ Glidden Victor Ported Jim Kuntz Alum

312/97

2.18/1.58

394/253

Edelbrock/ Glidden Victor 15 Deg CNC 61099 Alum

280/94

2.15/1.56
-
No Pipe

78/55

152/110

230/182

275/216

330/230

355/238

365/242

Edelbrock/ Glidden Victor 15 Deg CNC Chapman 6109 Alum

280/95

2.15/1.56
-
No Pipe

72/57

144/98

211/130

266/163

313/206

343/225

364/234

368/243

Edelbrock/ Chapman Victor 15 Deg CNC 61299 Alum

276/95

2.10/1.65

70/53

141/105

212/182

273/204

315/227

343/237

355/242

Edelbrock/ Chapman Victor 15 Deg CNC 6129 Chapman Alum

277/95

2.15/1.625

70/53

141/105

212/166

273/204

315/227

343/237

355/242

357/251

Edelbrock Victor 15 Deg 612969 SF1020 Alum

240/80

2.125/1.625

76/67

141/110

203/152

256/187

298/210

323/215

339/220

Edelbrock Victor 15 Deg 77219 Alum

240/80

2.125/1.625

76/67

141/110

203/152

256/187

298/210

323/215

339/220

Edelbrock Victor 15 Deg 7721 Ported Speier Racing Heads Alum

N/A

2.18/-
4.155

N/A

145/-

217/-

275/-

329/-

366/-

384/-

390/-

394/-

Edelbrock Victor 15 Deg 7721 Ported Speier Racing Heads Alum

290/-

2.18/1.60
4.155
2" Pipe

151/111

229/164

285/207

337/237

367/255

375/266

386/272

389/275

393/278

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Victor 15 Deg 7721 Ported BuschRacing I-45 E-45 Alum

N/A

2.125/1.625
4.06

N/A

222/185

273/223

325/249

362/262

375/270

383/278

381/285

Edelbrock Victor 7721 Ported BES Alum

N/A

2.18/1.60

61.5

73/57

157/110

226/160

291/202

336/236

360/258

362/272

363/281

370/289

Edelbrock Victor Ported Fox Lake Stage 1 Alum

281/-

2.125/1.625

38-62

366/281

Edelbrock Victor Ported Fox Lake Stage 2 Alum

301/-

2.20/1.625

38-62

381/281

Edelbrock Victor Ported Bennett Alum

N/A

40/60

410/285

Edelbrock Victor -13 Ported Bennett Alum

266/-

2.18/1.56

N/A

70/52

148/97

225/140

277/174

324/212

366/238

378/258

388/264

392/271

Edelbrock Victor -13 Ported Bennett Alum

N/A

2.18/1.58

400/272

Edelbrock Victor -15 Ported Bennett Alum

272/-

2.18/1.60

N/A

68/50

144/95

210/140

262/180

305/215

344/240

374/262

400/274

409/276

Edelbrock Victor Ported Fox Lake Stage 1 Alum

251/-

2.125/1.625

38/56

351/255

Edelbrock Victor Ported Fox Lake Stage 2 Alum

293/-

2.205/1.625

38/56

376/274

Edelbrock Victor 7721 Ported Gamrace Alum

290/-

2.18/1.625

210/165

276/215

331/240

368/255

391/265

391/270

Edelbrock Victor 7708 Ported Gamrace Alum

310/-

2.20/1.60

223/152

288/204

337/236

365/254

382/260

397/265

400/270

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Victor Ported TEA Alum

N/A

2.12/1.62

N/A

75/61

149/125

231/180

274/230

313/263

345/280

359/295

Edelbrock Victor Ported TEA Alum

280/-

2.15/1.625

N/A

71/61

147/117

224/173

278/218

320/252

358/274

365/287

Edelbrock Victor Ported TEA Alum

295/-

2.18/1.60

N/A

66/61

136/108

216/163

278/224

333/264

380/280

390/285

Edelbrock Victor Ported TEA Alum

305/-

N/A

66/57

136/108

214/154

278/228

339/260

379/282

395/286

399/294

Edelbrock Victor Ported ET Performance Alum

N/A

2.20/1.60
4.155

66/49

144/100

208/161

279/212

325/243

350/265

370/271

384/273

391/275

Edelbrock Victor Jr. 20 Deg 77169, 77179, 77189, 77199, SF1020 Alum

210/75

2.05/1.60

60/70

64/54

127/108

186/140

234/167

268/189

291/195

285/199

Edelbrock Victor Jr. Alum CCM

N/A

2.05/1.60

N/A

66/53

127/109

186/150

233/179

266/193

276/201

276/204

Edelbrock Victor Jr. Ported Fox Lake Stage 1 Alum

210/-

2.055/1.60

60/70

280/220

Edelbrock Victor Jr. Ported Fox Lake Stage 2 Alum

215/-

2.055/1.60

308/230

Edelbrock Victor Jr. Ported Fox Lake Stage 3 OLD Alum

223/-

2.055/1.60

N/A

320/240

Edelbrock Victor Jr. Ported Fox Lake Stage 3 Alum

230/-

2.08/1.625

65/75

332/255

Edelbrock Victor Jr. Gamrace Alum

N/A

2.05/1.60

N/A

182/145

225/166

258/182

274/189

270/103

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Victor Jr. CNC Chambers Gamrace Stage 1 Alum

217/-

2.08/1.60

198/165

253/190

290/210

306/220

306/225

Edelbrock Victor Jr. CNC Race Gamrace Stage 1 Alum

232/-

2.08/1.60

208/160

263/195

300/224

321/238

327/244

332/247

Edelbrock Victor Jr. Ported Modern Cylinder Heads Alum

N/A

2.055/1.60

N/A

329/249

Edelbrock Victor Jr. Ported Bullet Cylinder Heads Alum

224/83

2.05/1.60

71/68

134/114

194/150

250/171

285/190

307/203

311/218

Edelbrock Victor Jr. 20 Deg 61269 Pro-Port CNC SF1020 Alum

230/80

2.10/1.60
4.00

67/51

141/110

209/174

254/207

287/218

309/218

321/224

Edelbrock Victor Jr. 20 Deg 61279 Pro-Port CNC SF1020 Alum

230/80

2.10/1.60
4.00

67/52

141/110

209/173

254/210

287/221

309/224

321/227

Edelbrock Victor Jr. Ported TEA Alum

225/-

2.05/1.60

N/A

76/66

143/125

204/174

260/215

298/244

314/261

320/270

Edelbrock Victor Jr. Ported TEA Alum

225/-

2.05/1.60
4.03
Pipe 1 7/8

N/A

76/57

143/125

210/174

265/215

305/244

311/250

320/261

Edelbrock Victor Jr. Ported TEA Renegade Alum

225/-

2.05/1.60

N/A

64/52

133/122

202/175

253/219

297/247

312/266

320/278

Edelbrock Victor Jr. Ported BES Alum

N/A

2.055/1.60

N/A

74/54

133/106

193/154

246/183

283/187

310/192

319/192

305/193

Edelbrock/ Glidden Victor Jr. 18 Deg 61309 CNC SF1020 Alum

225/78

2.08/1.60

65/56

142/112

207/176

260/207

296/221

312/226

318/228

Edelbrock/ Glidden 6130 CNC Chapman Alum

212/80

2.08/1.60
-
No Pipe

65/56

142/112

207/176

260/207

296/221

312/226

318/228

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Edelbrock Victor 15 Deg 77289, 77299 Alum

255/90

2.10/1.625

48/58

68/54

145/112

215/167

266/198

303/206

323/207

327/209

Edelbrock Victor Ported TEA Alum

N/A

2.12/1.625

75/61

149/125

231/180

274/230

313/263

345/280

359/295

Edelbrock/ Glidden II GV2 77319 Ported Speier Racing Heads Alum

N/A

-
4.155
2" Pipe

N/A

140/108

216/154

281/208

336/242

380/260

405/274

417/278

420/282

429/284

Edelbrock/ Glidden Victor II Ported BES Alum

320/-

2.20/1.60

48.5

133/117

224/162

281/202

347/236

397/265

427/281

449/292

438/296

440/300

Edelbrock RPM Xtreme CNC SF1020 Alum

185/75

2.02/1.57

78/63

146/119

213/173

257/197

281/205

292/209

Edelbrock Performer RPM Clevor 61629, 61699 SF1020 Alum

190/90

2.05/1.60

68/54

128/105

180/138

227/151

260/161

265/165

Edelbrock/ Glidden SC-1 Ported BES Alum

N/A

2.225/1.60

35-49

143/106

226/160

295/202

354/233

405/253

423/265

439/275

448/278

457/281

Edelbrock SC-1 Ported TEA Alum

380/-

2.225/1.60
4.185

N/A

63/53

135/113

225/170

297/232

362/270

410/294

431/312

445/321

462/328

470/333

Edelbrock SC-1 Ported Fox Lake SF600 Alum

N/A

-
4.155

N/A

150/115

226/172

279/214

348/242

400/258

435/273

461/285

462/296

Flo-Tek OLD Alum

180/62

1.94/1.54

61/57

124/98

178/119

209/137

223/161

248/191

Flo-Tek 180 SF1020 Alum

180/62

1.94/1.54

114/98

169/132

209/136

218/136

224/136

227/136

197/130

Flo-Tek 185 SF600 Alum

185/62

2.02/1.60

141/110

201/140

246/163

273/177

278/182

275/184

273/186

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Flo-Tek 190 CNC SF1020 Alum

190/71

2.02/1.55

147/114

206/151

235/168

254/178

268/190

274/203

277/206

Flo-Tek 205 SF1020 Alum

205/70

2.08/1.60
4.03

249/172

283/187

297/196

300/201

Holley 5.0 Systemax

175.5/71

1.94/1.60

63/56

124/100

174/130

206/155

221/167

233/176

Holley 5.0 Systemax Weingartner Racing

N/A

1.94/1.60
4.155

N/A

62/59

122/98

173/124

207/143

215/156

213/163

212/167

Holley 5.0 Systemax MMFF

N/A

2.02/1.60

62/47

120/85

168/121

211/148

237/165

Holley 5.0 Systemax Ported

N/A

2.02/1.60

67/54

142/106

200/152

236/190

273/225

292/225

Jegs Kaase Alum MMFF

N/A

2.10/1.60

71/53

148/111

220/132

282/189

328/215

340/230

345/237

Jegs Kaase Bullet Cylinder Heads Alum

248/83

2.10/1.60

77/64

150/109

216/160

270/209

312/222

332/229

346/235

Kaase P-38 Heads SF1020 Alum

240/86

2.10/1.60

156/111

219/142

265/169

297/185

308/199

309/208

Kaase P-38 Heads SF1020 Alum

240/86

2.10/1.60

163/110

232/153

285/194

328/222

348/233

350/238

Patriot Freedom 185 Alum

185/72

2.02/1.60

83/68

152/120

210/161

238/186

256/198

268/204

Pro Comp SF600 Alum

N/A

2.02/1.60
4.00
Pipe

N/A

103/101

140/136

179/169

218/172

244/170

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Pro Comp MMFF Alum

190/-

2.02/1.60

59/47

116/85

167/126

213/157

241/171

251/176

258/180

Pro Comp Out of Box Weingartner Racing Alum

190/-

2.02/1.60
4.155
No Pipe

N/A

54/50

99/89

145/131

191/154

221/158

220/159

209/158

208/158

Pro Comp MMFF Alum

210/-

2.02/1.60

N/A

57/55

102/91

147/131

194/160

233/170

256/174

262/177

Pro Comp CNC Alum

210/80

2.02/1.60
-
1 7/8" Pipe

135/115

193/185

232/203

258/214

277/224

Pro Comp CNC Alum

N/A

2.02/1.60

N/A

68/55

122/113

171/152

215/187

247/198

274/200

292/201

Pro Comp CNC MMFF Alum

215/-

2.05/1.60

N/A

63/53

130/102

182/139

230/166

264/186

291/198

303/205

Pro Comp CNC Alum

225/80

2.05/1.60
-
1 7/8" Pipe

147/120

205/165

258/185

289/222

306/232

314/240

Pro Comp Ported Dr Js Alum

225/-

2.08/1.60
4.10
1 3/4" Pipe

N/A

74/66

139/115

206/154

251/182

291/212

313/231

325/244

329/251

331/255

333/258

Pro-Filer Alum

205/-

2.05/1.60

140/107

215/151

268/185

285/203

308/215

314/219

320/224

Pro-Filer CNC HP Speier Racing Alum

227/-

2.08/1.60
4.03
2" Pipe

N/A

141/101

212/150

263/195

298/224

317/242

330/253

337/261

343/265

348/268

Pro-Filer CNC Speier Racing Alum

240/-

2.125/1.60
4.125

N/A

149/101

210/144

265/183

304/211

326/235

338/250

344/255

347/258

351/261

ProMaxx CNC Out of Box Porter Racing Heads Alum

N/A

2.08/1.60
4.00
No Pipe

N/A

67/47

126/98

185/138

232/164

262/180

278/189

286/193

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

ProMaxx Shocker 210 Alum

210/-

2.08/1.60

N/A

146/120

207/170

254/205

293/226

315/234

325/239

329/239

Pro Topline CNC MMFF

N/A

2.10/1.60

69/51

123/102

171/140

221/175

264/207

292/216

305/221

Pro Topline Cyclone Alum

215/-

2.08/1.60

75/60

151/121

217/159

267/184

302/193

310/199

314/202

Pro Topline Cyclone CNC Gamrace Alum

215/-

156/-

204/-

248/-

275/-

294/-

304/-

306/-

Pro Topline Gerald Alum

215/-

2.08/1.60
4.03

N/A

129/-

186/-

232/-

265/-

284/-

292/-

299/-

Pro Topline Out of Box Weingartner Racing Alum

215/-

2.08/1.60
4.155
No Pipe

N/A

60/51

118/95

155/116

210/143

258/168

287/182

291/190

290/194

294/-

RHS CCM Alum

180/-

2.02/1.60
4.03
No Pipe

N/A

63/44

118/97

172/133

223/159

249/169

255/174

266/177

RHS Pro Action / Pro Topline SF600 Alum 180

180/-

2.02/1.60

58/64

72/60

154/121

208/159

254/184

271/193

274/199

276/202

RHS Pro Action / Pro Topline 180 CNC Livernois Motorsports SF600 Alum

195/-

2.02/1.60
4.03
No Pipe

66/56

141/108

215/140

252/177

278/204

298/211

RHS Pro Action / Pro Topline 180 CNC Livernois Motorsports Alum

210/-

2.02/1.60
-
1 3/4" Pipe

N/A

68/52

151/113

216/142

252/176

283/191

313/213

RHS Westech 180 Iron

180/-

2.02/1.60
4.03

57/48

111/98

158/133

206/170

240/189

252/198

260/203

RHS Westech 200 Alum 200

200/-

2.02/1.60

65/50

118/96

167/130

216/157

254/175

271/181

277/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

RHS Westech 200 Iron

200/-

2.02/1.60
4.03

63/50

119/104

172/140

216/174

244/193

264/203

275/209

RHS Pro Action / Pro Topline SF600 Alum 200

200/-

2.02/1.60

58/64

68/60

143/121

212/159

259/184

277/193

283/199

286/202

RHS Pro Action / Pro Topline SF600 Alum 215

215/-

2.08/1.60

58/64

75/60

151/121

217/159

267/184

302/193

310/199

314/202

RHS Pro Action / Pro Topline Alum 215 Shawn

215/-

2.08/1.60
4.125
No Pipe

N/A

75/70

132/112

186/135

234/178

270/193

285/195

294/199

RHS 215 Out of Box Weingartner Racing

215/-

2.08/1.60
4.155
No Pipe

N/A

70/57

141/107

200/140

238/157

271/164

287/165

290/166

294/164

291/163

RHS 215 Ported Weingartner Racing I-50 E-45

N/A

2.08/1.60
4.155
No Pipe

N/A

65/54

146/104

217/137

263/166

301/185

330/202

342/215

342/219

344/220

RHS Ported Speier Racing Heads I-45 E-45 Iron

216/-

2.055/1.60
4.00
1 3/4" Pipe

N/A

141/110

215/157

262/193

295/211

312/219

318/228

327/233

330/236

333/238

RHS Ported Revolutionary

227/-

2.08/1.60
4.155
No Pipe

73/66

138/130

205/167

258/194

296/213

319/229

333/233

339/239

342/239

RHS Westech 215 Iron

215/-

2.08/1.60
4.03

60/52

116/102

168/134

217/172

260/181

292/190

305/200

SuperBoss 351 PowerHeads SF600

205/105

2.19/1.71

76/63

136/105

186/151

235/179

284/200

312/215

SuperBoss 351 Ported PowerHeads SF600

230/125

2.19/1.71

90/87

149/120

210/173

257/205

305/231

341/241

TFS Street Heat SF600

192/-

2.02/1.60

255/190

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

TFS Street Heat SF600

N/A

2.08/1.60

340/-

TFS Street Heat MMFF

N/A

2.08/1.60

60/56

140/98

204/141

258/178

290/214

319/231

332/243

Trick Flow 170 Ported Smithberg Racing Alum

185/-

2.02/1.60
4.03
No Pipe

N/A

80/47

146/102

208/135

258/166

285/197

302/212

305/218

Trick Flow HP SF600 Alum

192/87

2.02/1.60
4.03
1 3/4" Pipe

67/55

133/103

186/138

230/166

257/183

267/193

Trick Flow HP TEA SF600 Alum

192/87

2.02/1.60
4.03
1 3/4" Pipe

67/55

137/103

194/138

244/166

270/183

283/193

Trick Flow HP CNC Chamber SF600 Alum

192/87

2.02/1.60
4.03
1 3/4" Pipe

67/55

137/103

194/138

244/166

270/183

283/193

Trick Flow HP CNC SF600 Alum

225/95

2.08/1.60
4.03
2" Pipe

333/255

Trick Flow HP CNC SF600 Alum

225/95

2.08/1.60
4.03
2" Pipe

72/58

146/117

216/162

268/210

305/234

322/247

335/257

Trick Flow HP / Street Heat Ported Fox Lake Stage 1 Alum

208/-

2.02/1.60

285/215

Trick Flow HP / Street Heat Ported Fox Lake Stage 2 Alum

215/-

2.055/1.60

311/230

Trick Flow HP / Street Heat Ported Fox Lake Stage 3 Alum

227/-

2.08/1.60

331/250

Trick Flow HP / Street Heat Ported Fox Lake Stage 5 Alum

240/-

2.08/1.625

352/251

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow HP / Street Heat Gamrace Alum

N/A

2.02/1.60

N/A

117/102

170/138

213/166

238/183

252/193

259/-

Trick Flow HP / Street Heat CNC Chamber Gamrace Alum

N/A

2.02/1.60

N/A

136/113

198/165

233/187

264/201

272/206

279/209

Trick Flow HP / Street Heat Ported Gamrace Alum

205/-

2.08/1.625

214/173

254/202

288/215

296/222

307/227

307/232

Trick Flow HP Ported Bennett Alum

227/-

2.10/1.60

56-74

332/260

Trick Flow HP Ported TEA Alum

N/A

2.08/-

N/A

281/-

306/-

324/-

333/-

340/260

Trick Flow HP Ported TEA 218 Alum

218/-

2.08/1.60

N/A

72/58

144/117

205/162

261/203

295/229

316/236

332/241

Trick Flow HP Ported TEA 225 Alum

225/-

2.08/1.60
4.03
2" Pipe

N/A

68/58

146/112

213/163

271/210

313/239

332/251

341/258

347/259

Trick Flow HP Ported TEA 225 Alum

225/-

2.08/1.60

N/A

71/63

142/120

218/175

277/221

313/248

331/265

346/276

Trick Flow HP Ported TEA 245 Alum

245/-

2.10/1.60
4.125
2" Pipe

N/A

69/51

146/112

229/168

292/209

318/238

341/258

351/269

355/270

Trick Flow HP Ported TEA 245 Alum

245/-

2.10/1.60
4.125

N/A

73/62

151/133

238/189

298/239

325/259

341/266

351/270

354/272

Trick Flow HP Ported TEA 250 I-50 Alum

250/-

2.125/1.60
4.155
2" Pipe

65/56

142/121

214/182

270/225

322/250

346/263

360/272

369/277

373/281

377/282

Trick Flow HP Ported TEA 255 Alum

255/-

2.125/1.58

N/A

61/51

136/121

220/175

281/221

325/250

353/267

370/274

380/281

385/284

391/285

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow HP Ported TEA 255 I-55 Alum

255/-

2.125/1.60
4.125
2" Pipe

62/58

133/125

214/177

278/222

323/251

355/265

368/276

378/283

384/287

387/290

Trick Flow HP Ported TEA Stage 3 Denny Alum

N/A

2.10/1.60

148/95

216/124

265/156

294/175

309/186

309/194

313/197

Trick Flow HP Ported ET Performance 230 Alum

230/-

2.055/1.60
4.06

72/58

144/115

215/150

262/190

293/215

314/222

325/236

Trick Flow HP Ported ET Performance 240 Alum

240/-

2.125/1.625
4.155

70/54

142/107

196/154

258/194

304/220

333/232

334/245

Trick Flow HP Ported M2 Race Systems Alum

238/-

2.12/1.58
4.155

275/160

320/210

350/240

370/252

Trick Flow HP Ported BES Alum

252/-

2.125/1.60

139/116

212/166

276/208

322/247

344/266

352/284

358/293

367/298

372/301

Trick Flow TW - CARB SF600 Alum

170/66

2.02/1.60

63/53

141/107

205/144

233/171

251/187

251/193

Trick Flow TW Alum MMFF

N/A

2.02/1.60

68/51

135/89

192/122

234/146

248/168

245/179

Trick Flow TW CNC 185 SF600 Alum

185/66

2.02/1.60
4.03
2" Pipe

72/58

142/112

216/150

258/192

287/220

301/231

Trick Flow TW CNC 205 SF600 Alum

205/66

2.02/1.60
4.03
2" Pipe

71/56

144/112

220/150

270/192

299/220

316/231

Trick Flow TW TEA 205 SF600 Alum

205/66

2.02/1.60
4.03
2" Pipe

71/58

143/114

221/152

271/189

301/220

315/234

Trick Flow TW 190 TFS-51400015 SF600 Alum

190/66

2.02/1.60
4.03
1 7/8" Pipe

69/53

144/111

210/144

252/182

268/193

268/194

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow TW 190 TH SF600 Alum

190/66

2.02/1.60
4.03
1 7/8" Pipe

N/A

71/57

145/115

214/150

57/187

268/194

273/197

Trick Flow TW 195 Weingartner Racing Back Cut I Alum

195/-

2.02/1.60
4.155

N/A

69/48

143/92

200/129

242/153

276/169

277/179

266/186

Trick Flow TW Ported Ford Performanve Solution Stage I Alum

N/A

295/220

Trick Flow TW Ported Ford Performanve Solution Stage II Alum

N/A

305/225

Trick Flow TW Ported Ford Performanve Solution Stage III Alum

N/A

315/235

Trick Flow TW Ported Fox Lake Stage 1 Alum

175/-

2.02/1.60

281/210

Trick Flow TW Ported Fox Lake Stage 2 Alum

185/-

2.02/1.60

300/220

Trick Flow TW Ported Fox Lake Stage 3 Alum

195/-

2.02/1.60

310/220

Trick Flow TW Ported Fox Lake Stage 4 Alum

207/-

2.055/1.60

320/230

Trick Flow TW Ported ET Performance Alum

215/-

2.08/1.60
4.03

64/57

137/103

203/143

261/178

291/203

310/214

316/221

Trick Flow TW Ported Bennett Stage 2 Alum

N/A

300/215

Trick Flow TW Ported Bennett Stage 3 Alum

N/A

320/230

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow TW Ported TEA Alum

185/-

2.02/1.60

N/A

72/58

142/114

215/152

259/189

287/220

300/234

Trick Flow TW Ported TEA 190 Alum

190/66

2.02/1.60
4.03
1 3/4 Pipe

71/60

139/111

205/150

257/185

292/212

311/227

Trick Flow TW Ported TEA Alum

205/-

2.02/1.60

N/A

71/58

143/114

221/152

271/189

301/220

315/234

Trick Flow TW Ported TEA Eric Alum

205/-

2.02/1.60

N/A

71/52

145/105

219/146

273/180

305/209

315/228

Trick Flow TW Ported TEA Renegade Alum

205/-

2.04/1.60

N/A

57/53

149/111

228/155

283/203

314/228

325/240

Trick Flow TW R SF600 Alum

206/92

2.08/1.60

305/235

Trick Flow TW R CNC SF600 Alum

225/100

2.08/1.60
4.03
2" Pipe

67/59

141/116

213/159

270/205

308/244

331/259

341/271

Trick Flow TW R Ported Ford Performanve Solution Stage I Alum

N/A

330/250

Trick Flow TW R Ported Ford Performanve Solution Stage II Alum

N/A

345/260

Trick Flow TW R Ported Ford Performanve Solution Stage III Alum

N/A

360/270

Trick Flow TW R Ported Fox Lake Stage 1 Alum

208/-

2.08/1.60

325/245

Trick Flow TW R Ported Fox Lake Stage 2 Alum

216/-

2.08/1.60

335/260

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Trick Flow TW R Ported Fox Lake Stage 3 Alum

233/107

2.125/1.625

358/268

Trick Flow TW R Ported Fox Lake Stage 3 Old Alum

240/-

2.15/1.625

362/273

Trick Flow TW R Ported Bennett Stage 1 Alum

N/A

325/240

Trick Flow TW R Ported Bennett Stage 2 Alum

N/A

340/270

Trick Flow TW R Ported Bennett Stage 3 Alum

N/A

360/275

Trick Flow TW R Ported TEA 225 Alum

225/80

2.08/1.60

N/A

67/59

141/121

215/161

271/204

306/243

332/258

345/270

Trick Flow TW R Ported TEA 235 Alum

235/80

2.125/1.60

N/A

70/54

143/106

215/155

271/208

310/250

339/259

358/270

Trick Flow TW R Ported TEA 235 Outlaw Alum

235/80

2.125/1.60

N/A

67/59

143/121

220/164

277/209

316/246

344/259

370/280

Trick Flow TW R Ported TEA 245 Alum

245/100

2.125/1.60
4.125

N/A

82/64

153/115

213/163

267/214

315/255

346/281

370/300

385/305

Trick Flow R Ported Alum

215/-

2.08/1.60

N/A

61/56

130/103

197/141

257/178

300/211

330/230

347/238

Trick Flow 524002xx - R Series SF600 Alum

206/92

2.08/1.60

68/50

147/102

205/146

242/178

275/200

296/212

305/222

Trick Flow 52400001/2 - R Series Blend & Polish

N/A

66/55

146/111

208/157

254/200

287/225

307/244

325/254

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

World Windsor Sr Alum MMFF

N/A

2.02/1.60

61/47

116/81

156/115

196/134

219/146

232/150

World Windsor Sr SF600 Iron

N/A

2.02/1.60
-
No Pipe

N/A

66/59

129/106

184/148

226/174

257/181

264/183

268/185

248/186

Windsor Sr

197/-

2.02/1.60

162/121

196/137

218/149

225/160

Windsor Sr

N/A

2.05/1.60

162/121

196/137

218/149

315/-

Windsor Sr Ported Iron

N/A

2.08/1.60

79/63

149/121

205/160

257/190

293/207

310/216

World Windsor Jr Alum MMFF

N/A

1.94/1.60

63/46

118/78

162/106

185/119

199/128

210/133

World Windsor Jr Iron MMFF

N/A

1.94/1.60

53/38

109/84

154/117

184/143

203/148

World Windsor Jr SF600 Iron

N/A

1.94/1.60
-
No Pipe

N/A

76/53

127/83

167/117

203/141

231/157

246/168

248/175

248/178

World Windsor Jr

171/-

1.94/1.60

116/84

159/96

189/120

204/126

216/129

222/132

World Windsor Jr Iron

180/84

1.94/1.60

120/81

165/108

195/123

214/130

226/134

234/135

World Windsor Jr Ported Bullet Cylinder Heads Iron

195/-

1.94/1.50

62/53

132/103

185/144

231/170

257/192

273/197

World Roush 200

N/A

2.02/1.60

N/A

129/117

187/139

232/145

257/140

260/152

264/154

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

World Roush 200 Andrew Iron

N/A

2.02/1.60

61/54

121/108

175/128

219/138

241/145

248/148

World Roush 200 Exhaust Bowl and Chamber Blended Andrew Iron

N/A

2.02/1.60

61/52

121/107

175/156

219/175

241/183

248/188

World Roush 200 Ported Bullet Cylinder Heads Iron

217/83

2.05/1.60

70/58

142/105

201/163

259/198

273/209

300/211

308/210

World 180p.v. Ported Bullet Cylinder Heads Iron

202/79

2.05/1.60

70/54

135/107

193/139

250/172

272/198

293/209

294/211

World / Kuntz 18 Deg 200 Manowar SF600 Alum

200/-

2.02/1.60
-
No Pipe

N/A

67/54

129/107

185/141

227/168

258/184

283/193

299/198

306/200

World / Kuntz 18 Deg CNC 228 SF600 Alum

228/73

2.08/1.60
-
No Pipe

68/59

135/107

195/144

238/178

268/201

296/217

308/225

318/228

World / Kuntz 18 Deg 225 Manowar SF600 Alum

225/-

2.08/1.60
-
No Pipe

62/51

118/101

174/141

219/169

253/186

282/193

299/198

313/200

World / Kuntz 18 Deg CNC 242 Manowar SF600 Alum

242/75

2.10/1.60
-
No Pipe

64/61

124/109

182/149

231/179

266/193

298/199

319/203

326/205

World / Kuntz 18 Deg Alum

230/-

2.12/1.60

N/A

340/230

World / Kuntz 10 Deg 275 Manowar SF600 Alum

275/102

2.20/1.60
-
No Pipe

73/63

148/122

220/166

283/204

327/222

352/237

365/243

347/246

World / Kuntz 10 Deg 285 Manowar SF600 Alum

285/102

2.20/1.60
-
No Pipe

65/52

117/97

182/138

249/173

308/202

348/231

372/244

352/251

World / Kuntz 10 Deg CNC 310 Manowar SF600 Alum

310/106

2.20/1.60
-
No Pipe

65/53

140/106

212/144

274/173

326/195

363/218

381/233

391/240

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Ultra Pro Machining Billet I-7.5 Deg E-8 Deg I-50 E-50 Alum

N/A

2.15/1.60

N/A

75/53

152/106

237/172

309/219

352/249

379/262

394/275

402/280

Ultra Pro Machining Billet I-9 Deg E-8 Deg I-50 E-50 Alum

N/A

2.18/1.60

N/A

70/48

158/109

237/158

312/223

357/253

383/270

397/285

414/291

Ultra Pro Machining Billet I-9 Deg E-8 Deg I-55 E-55 Alum

N/A

2.23/1.625

N/A

71/48

164/109

245/162

321/223

383/253

405/270

425/285

445/291

452/293

457/295

Ultra Pro Machining Billet I-9 Deg E-8 Deg I-55 E-55 Alum

N/A

2.25/1.60

N/A

67/48

143/107

234/158

324/223

388/255

421/273

444/286

461/291

469/295

472/298

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Ford Truck D2TE-AA Ross Bullock prepped, Ported Les Schmader Iron

140/-

2.09/1.7
-
2" Pipe

167/122

217/166

264/180

273/182

277/184

277/186

Ford C1AE Bill Ballinger Iron

144/104

2.03/1.56

N/A

66/52

133/98

193/125

220/138

230/144

237/146

241/147

Ford C1AE Bowl Ported Scott Vincent Iron

N/A

2.09/1.65

N/A

74/49

149/91

202/124

241/162

249/198

259/205

263/212

Ford C1AE Bowl + Blend Ported Scott Vincent Iron

N/A

2.09/1.65

N/A

66/49

141/91

218/124

256/162

269/198

282/205

286/212

Ford C4AE 6090G Iron

150/108

2.03/1.56

N/A

130/111

180/135

220/155

236/165

246/165

Ford C4AE 6090G Ported Les Schmader Iron

N/A

2.09/1.653
-
2" Pipe

70/55

156/109

222/151

257/180

272/195

281/197

291/200

Ford C4AE-G Ported Scott Vincent Iron

170/125

2.09/1.66
-
2" Pipe

N/A

80/56

149/104

207/149

250/186

250/197

253/200

260/199

Ford C6FE-A Flowtech - Steven Magnotti 3 Angle VJ SF110 Alum

N/A

1.94/1.60
4.00
No Pipe

N/A

65/43

118/91

153/120

181/142

190/152

194/-

200/-

206/-

Ford C6FE-A Flowtech - Steven Magnotti Mild Intake Port Ported Exhaust and Chamber Work SF110 Alum

N/A

1.94/1.60
4.00
No Pipe

N/A

67/45

121/96

161/139

195/161

208/164

225/166

233/166

235/-

245/-

Ford C8AE-H Iron

N/A

2.03/1.56

68-71

115/88

168/122

198/133

202/139

Ford C8AE-H Low Riser Flowtech - Steven Magnotti SF110 Iron

N/A

2.055/1.558
-
No Pipe

N/A

56/43

109/84

167/123

196/136

200/140

204/143

208/149

211/152

215/-

Ford C8AE-H Low Raiser Flowtech - Steven Magnotti Ported Exhaust Valve Back Cut 30 SF110 Iron

N/A

2.055/1.558
-
No Pipe

N/A

62/46

130/95

190/141

233/154

253/157

260/162

263/166

266/174

-/182

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Ford C8OE-N 428 CJ - Brent Lykins Stock Iron

N/A

2.09/1.65

N/A

64/52

124/87

182/118

211/144

224/164

231/174

236/179

Ford C8OE-N 428 CJ 3/8" stem Ferrea valves I-45 E-45 - Brent Lykins Stock Iron

N/A

2.09/1.65

N/A

80/64

139/100

195/133

230/162

246/181

253/188

Ford C8OE-N 428 CJ 5/16 stem XCeldyne intake, 7mm Ferrea exhaust I-50 E-45 - Brent Lykins Stock Iron

N/A

2.09/1.65

N/A

76/67

138/115

204/140

235/157

248/170

250/180

252/189

Ford 428 C0AE Med Riser Flowtech - Steven Magnotti SF110 Iron

N/A

2.09/1.65
-
No Pipe

N/A

61/44

111/86

156/132

196/158

206/175

211/178

215/202

218/204

Ford 427 Med Riser Iron

N/A

2.19/1.73

240/-

250/-

Ford 427 Med Riser Ported Keith Craft Iron

N/A

300/-

Ford 427 Med? Riser Iron

N/A

296/177

Ford 427 Hi? Riser Iron

N/A

2.18/1.72

284/177

Ford 427 Hi Riser John Iron

N/A

2.19/-

N/A

83/-

140/-

193/-

239/-

267/-

268/-

275/-

278/-

Ford 427 Hi Riser C4AE 6090F Iron

193/125

2.19/1.73

Ford 427 Hi Riser Ported Iron

N/A

370/-

-/290

Ford 427 Tunnel Port Monty Iron

N/A

2.19/1.73

N/A

97/53

173/105

237/154

273/180

296/190

285/194

283/194

291/196

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Ford 427 Tunnel Port Jim Milled Smoothed Exhaust Bowl Iron

N/A

2.19/1.75

84/50

156/105

202/158

242/191

267/205

287/213

301/216

298/217

289/217

Ford 427 Tunnel Port

N/A

2.25/1.73

88-90

308/166

Ford 427 Tunnel Port John

N/A

2.25/-

N/A

81/-

155/-

212/-

255/-

288/-

305/-

315/-

322/-

Ford 427 Tunnel Port C7OE

N/A

2.25/1.73

N/A

161/101

216/141

251/173

269/182

294/184

307/186

314/186

Ford 427 Tunnel Port Mild Port Jim Iron

N/A

2.25/1.75
-
No Pipe

N/A

177/115

240/153

279/179

306/190

326/197

342/201

Ford 427 Tunnel Port Ported Iron

N/A

2.25/1.75
-
No Pipe

N/A

383/256

Ford 427 SOHC HRM Iron

N/A

2.25/1.90

N/A

86/60

170/129

244/186

281/220

302/246

324/260

336/264

340/266

Ford 427 SOHC Iron

N/A

2.25/1.90

N/A

355/248

Ford 427 SOHC Ported

N/A

2.30/1.90

N/A

185/130

262/190

340/224

389/253

403/273

405/286

-/295

Ford 427 SOHC Ported R&R HRM Tulip Intake 30 Deg Seat Alum

N/A

2.30/1.90

N/A

92/58

173/130

226/190

283/224

332/253

364/273

380/286

394/295

Ford 427 SOHC Ported R&R HRM Nailhead Intake 45 Deg Seat Alum

N/A

2.30/1.90

N/A

87/58

175/130

270/190

337/224

375/253

400/273

400/286

401/295

Ford 428 CJ Iron

152/122

2.09/1.66
4.18

N/A

76/46

150/85

202/118

228/145

236/163

243/174

244/181

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Ford 428 CJ Iron

152/122

2.09/1.66
4.18

N/A

243/181

Ford 428 CJ C80E-N Bill Ballinger Iron

N/A

2.09/1.66

N/A

61/51

135/91

204/121

230/149

248/175

252/179

Ford 428 CJ NHRA Keith Craft Iron

155/123

2.09/1.66-

N/A

275/210

Ford 428 CJ Ported Keith Craft Iron

N/A

2.15/1.66

N/A

224/151

271/186

292/204

300/224

302/228

Ford 428 CJ Canadian Iron

170/123

N/A

Blue Thunder M/R Ported Keith Craft Alum

N/A

350/260

Blue Thunder M/R Ported ET Performance Alum

N/A

2.25/1.65
4.350

76/63

156/119

215/161

276/191

318/215

341/229

358/237

Blue Thunder H/R Ported Keith Craft Alum

N/A

405/280

Blue Thunder H/R Ported Alum

N/A

2.30/1.75
4.350
Pipe

385/280

Blue Thunder Ported Shanons Engineering Alum

N/A

350/-

Coon 427 SOHC Ported R&R HRM Nailhead Intake 45 Deg Seat Alum

N/A

2.30/1.90

N/A

81/58

179/133

263/202

340/248

402/280

422/295

429/298

415/300

Dove 427 Tunnel Port Alum

N/A

2.25/1.73

N/A

370/230

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Dove/Glidden High Riser Ported Foxwell Motorsports Alum

N/A

-
4.375

N/A

154/123

234/178

293/214

327/247

356/273

379/291

402/302

418/312

425/324

Dove 428 CJ Canadian Alum

N/A

2.09/1.65

58/72

320/210

Dove 428 Hi Velocity Alum

N/A

2.09/1.65

58/72

290/-

Edelbrock 6006 Alum

170/125

2.09/1.66

N/A

149/112

185/148

222/171

252/183

Edelbrock 6006 Alum

170/125

2.09/1.66

N/A

77/51

140/100

183/138

214/157

238/174

248/185

256/185

Edelbrock Performer RPM 390-428 CJ 60069, 61699 SF1020 Alum

170/125

2.09/1.66

72/76

88/64

153/113

195/148

233/171

265/183

270/200

Edelbrock Performer RPM 390-428 CJ 60059 Joe Sherman Alum

N/A

2.09/1.66

N/A

75/55

146/108

182/138

217/159

243/168

258/191

266/197

Edelbrock Performer RPM 390-428 CJ 60059 Mild Port Joe Sherman Alum

N/A

2.15/1.66

75/60

142/120

201/158

251/177

280/188

293/206

302/217

Edelbrock Performer RPM 390-428 CJ 60059 John Alum

N/A

2.09/-

N/A

68/-

125/-

172/-

218/-

237/-

250/-

260/-

262/-

Edelbrock Performer RPM 390-428 CJ 60059 Ported John Alum

N/A

2.25/-

N/A

75/-

147/-

208/-

261/-

285/-

310/-

320/-

339/-

Edelbrock Speier Racing Heads Out of Box SF600 Alum

N/A

2.09/-
4.155

N/A

144/-

183/-

216/-

240/-

249/-

253/-

257/-

Edelbrock Speier Racing Heads Ported SF600 Alum

N/A

2.09/-
4.155

N/A

152/-

217/-

262/-

284/-

297/-

298/-

300/-

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Edelbrock 390 Stock BH Performance Alum

N/A

2.09/1.66
-
No Pipe

N/A

70/-

137/-

179/-

224/-

248/-

247/-

253/-

Edelbrock 390 Bowl Port BH Performance Alum

N/A

2.09/1.66
-
No Pipe

N/A

69/64

137/111

194/142

247/166

284/193

298/203

291/208

Edelbrock Performer RPM FE NPS Alum

N/A

2.09/1.66
4.252
No Pipe

N/A

75/52

138/98

177/132

220/160

244/180

248/191

257/194

Edelbrock Performer RPM FE 60079 Alum

170/125

2.09/1.66

88/64

153/113

195/148

233/171

265/183

270/200

Edelbrock Street/Strip Port CCM Alum

N/A

2.19/1.71

76/61

141/118

200/168

248/202

285/221

299/236

304/244

Edelbrock Ported Alum

N/A

2.09/1.66
4.18

N/A

78/62

153/120

228/154

271/190

294/212

305/230

317/244

330/250

Edelbrock Ported Alum

N/A

2.25/1.78

N/A

340/275

Edelbrock Stage II Ported Keith Craft Alum

N/A

2.09/1.66

N/A

330/250

Edelbrock Stage II Ported Keith Craft Alum

165/130

2.15/1.66
-
2" Pipe

N/A

324/235

Edelbrock Stage II Ported Keith Craft Alum

165/130

2.19/1.75
4.165
2" Pipe

N/A

324/235

Edelbrock Stage III Ported Keith Craft Alum

185/140

2.25/1.75

N/A

270/-

318/-

338/-

355/-

375/280

Edelbrock Stage III Ported Keith Craft Alum

185/140

2.25/1.75

N/A

370/270

380/280

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

Edelbrock Performer FE Ported ET Performance Alum

N/A

2.19/1.65
4.18

N/A

73/63

148/119

211/158

269/185

305/202

309/217

319/228

Edelbrock Ported Kuntz Alum

N/A

2.15/1.625

N/A

235/159

284/192

319/221

335/243

355/254

356/259

359/262

Edelbrock Ported Kuntz Alum

N/A

2.25/1.75

N/A

232/172

281/203

313/228

333/250

353/261

362/262

Edelbrock Ported Kuntz Alum

N/A

2.30/1.70
-
No Pipe

400/275

Edelbrock Ported Fox Lake SF600 Alum

N/A

-
4.125

N/A

79/72

159/107

220/136

272/183

323/209

334/231

348/253

FElony Survival / Barry R SF600 Alum

196/-

2.25/1.75
4.28
No Pipe

N/A

147/110

212/150

272/180

302/196

338/208

355/226

360/236

ProMaxx 170 Alum

170/125

2.09/1.66

N/A

91/66

161/118

204/152

245/178

274/190

277/197

280/202

ProMaxx Shocker 200 Alum

200/125

2.20/1.73

90/66

191/118

230/163

277/196

309/227

318/240

331/254

346/267

351/279

Shelby 427 Alum

N/A

2.25/1.75

N/A

241/156

264/175

275/180

279/-

Shelby 427 Alum Stage II Porting

N/A

2.25/1.75

N/A

265/185

294/200

309/209

314/214

Shelby 427 Alum

163/128

2.25/1.75

280/185

Shelby 427 Alum Stage II Porting

N/A

320/235

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.450

.500

.550

.600

.700

.800

.900

1.000

Average

TFS Brent Lykins SF600 Alum

169.8/-

2.19/1.625
4.155
No Pipe

69.8

96/66

159/120

233/164

283/197

317/215

333/220

333/-

Trick Flow PowerPort 175 Alum

175/113

2.19/1.625
4.25
2" Pipe

72/63

151/117

238/171

284/219

317/239

332/245

338/249

Ultra Pro Machining Billet Canted Valve I-50 E-50 Alum

280/150

2.30/1.75

N/A

77/53

165/103

250/145

328/184

381/222

413/264

436/281

455/291

465/299

471/302

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford 429 Iron

N/A

2.08/1.656

N/A

184/119

217/129

239/130

260/-

Ford 429 Iron

N/A

229/174

254/177

272/177

Ford E7TE Scott Johnston Iron

N/A

2.08/1.656

N/A

58/42

117/88

174/117

196/131

224/137

239/141

247/142

Ford E7TE Ported Scott Johnston Iron

N/A

2.08/1.656

N/A

74/54

147/103

211/137

263/169

289/191

303/206

312/219

Ford 429 CJ Iron

N/A

2.24/1.72

N/A

300/189

331/201

Ford D0OE-R CJ Scott Johnston Iron

N/A

2.24/1.72

N/A

67/50

133/94

186/122

235/140

275/151

302/158

322/159

Ford D0OE-R CJ Bret Iron

N/A

2.25/1.75

N/A

72/55

137/109

200/134

266/149

289/157

317/161

337/163

350/-

Ford D0OE-R CJ Ported Mike R Iron

N/A

2.24/1.72

N/A

81/57

156/112

227/151

277/175

310/192

343/203

362/209

375/211

Ford D0OE-R CJ Ported Charlie Evans Iron

N/A

2.24/1.72
-
No Pipe

N/A

71/59

138/102

206/129

265/156

310/175

342/184

364/188

375/211

Ford SCJ Ported Stuska1 Iron

N/A

-
4.40

N/A

76/-

143/-

213/-

261/-

302/-

340/-

367/-

383/-

Ford A429

N/A

152/115

216/149

253/177

280/190

290/197

290/199

Ford A429 Charlie Evans

N/A

69/60

136/104

205/148

261/172

283/180

292/183

298/184

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford A429 Charlie Evans

N/A

2.245/1.76

N/A

72/57

154/121

230/148

298/172

332/213

345/225

357/230

Ford A429 CJ Ported Jon Kaase

N/A

420/295

Ford 429 DOVE Iron

N/A

2.08/1.65
-
2 1/8" Pipe

N/A

68/56

138/105

207/128

246/141

268/144

281/146

Ford 429 DOVE Ported Iron

N/A

2.19/1.735
-
2 1/8" Pipe

N/A

70/59

146/119

217/149

269/167

299/174

308/180

310/-

Ford DOVE Scott Johnson Iron

N/A

62/47

119/87

189/119

236/134

263/135

279/135

289/135

Ford DOVE Max Ported Scott Johnson Iron

N/A

2.20/1.80

N/A

78/70

160/115

223/157

271/187

300/200

328/215

339/222

354/227

Ford DOVE Ported chd600 SF600 Iron

N/A

2.19/1.80
-
No Pipe

N/A

68/57

147/110

216/151

273/174

297/188

304/192

Ford 429 DOVE-C CCM Iron

N/A

2.06/1.76

65/47

119/88

178/115

216/124

248/126

270/126

286/-

Ford 429 DOVE-C Iron

N/A

2.06/1.76

N/A

122/87

178/115

226/130

250/140

264/143

274/144

Ford 429 DOVE-C Ported Scott Johnston Iron

N/A

2.19/1.745
-
No Pipe

N/A

86/60

144/107

204/140

270/168

306/195

325/212

342/222

360/230

Ford 429 DOVE-C Ported Charlie Evans Iron

N/A

2.20/-
4.35

N/A

70/-

150/-

223/-

280/-

306/-

317/-

327/-

Ford 429 '73 D2VE-AA FORD Muscle Iron

N/A

2.09/1.66
4.50

N/A

81/69

144/112

202/140

240/150

271/154

290/156

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford D2VE Ported Blake Iron

N/A

2.25/-

N/A

76/-

164/-

227/-

273/-

298/-

307/-

312/-

318/-

Ford 460 Jim Grubbs CCM Iron

N/A

2.08/1.65
-
No Pipe

N/A

66/47

125/89

185/117

225/127

253/129

271/129

Ford 460 DOVE-A2A Dr Js Performance Iron

N/A

69/48

132/97

203/123

240/129

266/129

275/129

282/129

Ford 460 DOVE-A2A Ported Dr Js Performance Iron

N/A

71/50

136/97

206/126

251/148

288/165

317/179

331/190

Ford 460 DOVE Ported Fox Lake Iron

N/A

2.25/1.76

N/A

235/152

288/193

326/203

342/211

351/220

Ford D20E PI Ported Brian Eyler 45 Deg / Back Cut Intake Tulip Exhaust SF600 Iron

310/-

2.25/1.76
-
No Pipe

N/A

84/65

176/100

246/142

298/174

314/182

329/194

339/199

348/199

Ford 460 D3VE-C Scott Johnston Iron

N/A

2.08/1.65

N/A

62/47

119/87

189/119

236/125

263/129

270/129

Ford 460 D3VE-C Ported Stage 2 Scott Johnston Iron

N/A

2.19/1.76

N/A

95/60

163/107

223/140

268/168

301/195

325/202

342/202

355/202

Ford 460 D3VE-C Iron

244/89

2.08/1.65

N/A

270/128

Ford 460 D3VE-C Ported Iron

N/A

2.19/1.76

N/A

218/148

266/185

291/193

314/205

323/207

Ford 460 D3VE Ported Anderson Port Development Iron

N/A

2.25/-
4.375

N/A

80/-

150/-

219/-

264/-

316/-

351/-

370/-

384/-

390/-

Ford F3TE Ported Scott Johnston Iron

N/A

2.19/1.76

N/A

87/82

163/116

227/150

275/175

305/199

316/215

326/222

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford 429 New SCJ Alum

290/148

2.20/1.76

330/225

Ford 429 New SCJ Alum

290/148

2.20/1.76

154/103

202/139

248/185

274/200

298/208

309/212

318/214

Ford 429 New SCJ CCM Alum

N/A

2.20/1.76

73/60

155/106

222/141

275/177

314/191

317/203

316/211

321/213

Ford 429 New SCJ Hand Blending Alum

N/A

2.20/1.76
-
No Pipe

81/72

155/104

250/146

313/175

359/195

345/206

340/213

331/217

Ford 429 New SCJ Ported Scott Johnston Alum

315/-

2.20/1.76
-
No Pipe

N/A

95/59

166/104

256/153

330/182

356/200

370/213

380/238

370/250

Ford SCJ Ported Smithberg Racing Alum

N/A

2.20/1.76
4.31
No Pipe

N/A

77/63

187/114

274/156

333/190

377/205

399/219

403/229

411/240

Ford 460 CJ SVO

N/A

2.25/1.75

N/A

240/165

274/176

292/181

Ford 460 CJ Kendrick Auto Alum

N/A

2.25/1.76

N/A

144/116

199/159

254/166

291/189

308/194

322/195

Ford 460 CJ Ported Kendrick Auto Alum

N/A

2.25/1.76

N/A

143/123

202/176

264/202

317/230

348/253

371/256

Ford A460 Ported TEA

350/180

2.35/1.88

80/63

160/131

244/179

314/227

380/271

415/311

435/339

457/361

Ford A460 Ported dfree383

N/A

2.40/1.90
4.625
No Pipe

76/59

152/120

235/158

310/197

368/235

413/267

437/292

445/314

Ford A460 Ported Charlie Evans

N/A

2.30/1.88
-
No Pipe

N/A

73/62

157/118

237/164

303/212

362/252

399/283

410/301

421/310

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford A460 Ported Charlie Evans

N/A

2.35/1.88
-
No Pipe

N/A

75/57

158/110

233/156

297/204

356/244

400/277

430/300

423/311

Ford A460 Ported Charlie Evans

N/A

2.40/1.90
-
No Pipe

N/A

71/57

152/111

239/158

309/206

362/256

405/285

437/300

458/306

Ford B-460 Charlie Evans

N/A

2.38/1.88
-
No Pipe

N/A

159/130

250/178

335/226

405/272

447/313

473/338

484/353

490/363

Ford C-460 Charlie Evans

N/A

2.45/1.90
4.625
No Pipe

N/A

159/111

227/150

285/183

327/201

351/214

367/221

380/225

Ford C-460 Bowl Blend Charlie Evans I-45 E-45

N/A

2.45/1.90
4.625
No Pipe

N/A

154/111

230/166

306/217

380/260

425/270

427/293

413/302

Ford C-460 SuperBowl Blend Charlie Evans Tulip Exh

N/A

2.425/1.88
-
No Pipe

N/A

166/129

254/200

319/260

386/292

445/317

456/333

447/345

Ford C-460 Ported Charlie Evans I-45 E-45

N/A

2.45/1.90
4.625
No Pipe

N/A

158/125

238/164

316/212

384/270

431/295

464/315

480/325

Ford C-460 CNC Charlie Evans

N/A

2.45/1.90
4.625
No Pipe

N/A

160/130

245/170

327/210

400/280

450/315

478/340

500/355

Ford C-460 Bowl Blend - Short Turn

N/A

2.40/1.80

N/A

246/161

323/194

384/230

423/290

451/310

469/318

Ford C-460

N/A

440/-

Ford C-460 Ported

N/A

2.45/1.88

N/A

456/330

480/365

496/379

505/385

Ford C-460 Ported Jon Kaase

N/A

2.45/1.88
4.60

N/A

500/385

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford C-460 Ported M2 Race Systems

N/A

2.45/1.85
4.60

N/A

73/65

139/127

208/176

281/214

345/245

389/276

428/316

457/354

473/363

Ford C-460 Ported MBE I-55 E-55 SF600

N/A

2.55/1.80
4.52
No Pipe

50-90

144/115

211/171

286/218

360/255

416/286

460/306

498/320

517/330

530/340

542/342

Ford C-460 Ported TEA

385/-

2.45/1.90
4.625

N/A

83/63

160/125

257/175

334/260

394/294

442/320

471/339

484/350

490/357

Ford C-460 Ported ET Performance

N/A

2.45/1.88
4.60

N/A

90/58

158/120

256/168

330/252

393/272

436/311

468/322

481/340

485/348

Ford C-460 Meaux Racing Ported C460/Larry

N/A

2.40/1.90
4.50
No Pipe

N/A

154/126

227/177

305/217

369/246

414/265

431/284

450/294

Ford C-460 Meaux Racing Ported C460/Larry

N/A

2.40/1.90
4.60
No Pipe

N/A

153/126

226/177

307/217

402/246

430/265

452/284

460/294

Ford E-460 Ported ET Performance

N/A

-
4.50

N/A

80/56

158/113

258/159

345/198

414/232

460/265

485/285

504/303

513/314

Ford E-460 Ported Charlie Evans

N/A

2.52/-
4.625

N/A

248/-

340/-

417/-

483/-

521/-

540/-

550/-

557/-

Ford E-460 Ported Charlie Evans

N/A

2.52/-
4.625

N/A

240/-

325/-

408/-

481/-

525/-

555/-

571/-

Ford E-460 Meaux Racing Ported Glidden SF600

N/A

2.42/1.82
4.50

N/A

137/-

210/-

278/-

345/275

400/312

439/329

457/-

476/-

482/-

Ford Boss 429 Hemi

N/A

2.40/1.90

N/A

379/225

Ford Boss 429 Hemi Dr Js Performance

N/A

2.40/1.94
-
Pipe

N/A

83/60

152/125

243/175

327/217

363/248

361/271

362/287

364/300

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford Boss 429 Hemi Ported Dr Js Performance

N/A

2.40/1.94
-
Pipe

N/A

81/61

175/140

277/186

360/231

415/269

439/300

444/316

445/327

Ford Hemi Charlie Evans I-30 E-45

N/A

2.282/1.90

N/A

87/56

154/110

201/158

252/190

297/212

330/226

348/237

351/246

Hemi 747jetmech Ported

N/A

2.36/1.96

N/A

122/73

220/159

285/196

360/230

405/257

436/270

433/282

419/291

Ford A-441 Hemi Ported BES Alum

N/A

2.62/2.0

143/115

237/182

315/231

391/272

455/305

500/330

545/351

585/364

600/376

Ford New SCJ Scott Johnston Out of Box Alum

N/A

2.20/1.76

N/A

73/60

155/106

222/141

275/177

314/191

317/203

316/211

321/213

Ford New SCJ Charlie Evans Out of Box Alum

N/A

2.20/1.76
-
No Pipe

N/A

73/57

167/102

250/144

318/175

340/186

328/196

328/202

Ford New SCJ Bowl blend Charlie Evans Alum

N/A

2.20/1.76
-
No Pipe

N/A

73/58

167/103

252/145

323/177

371/190

349/207

344/218

Ford New SCJ Ported Charlie Evans Alum

N/A

2.20/1.76
-
No Pipe

N/A

72/61

154/114

252/157

336/185

393/204

366/225

362/233

Ford New SCJ Jon Kaase

N/A

2.20/1.76

N/A

84/73

181/119

264/164

330/183

357/199

345/218

345/227

Ford New SCJ Ported

N/A

2.20/1.76

N/A

330/182

380/200

390/217

Ford New SCJ Ported Active Racing SF600

N/A

2.25/1.76

N/A

89/79

173/134

247/171

308/198

337/225

323/242

Ford New SCJ Jon Kaase Stage 1 Ported

N/A

352/249

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Ford New SCJ Jon Kaase Stage 2 Ported

N/A

419/266

Ford Pro Stock RCV (Canted Valve) Ported Darin Morgan SF600 Alum

N/A

2.575/1.865
-
No Pipe

N/A

175/103

273/154

369/200

457/243

530/286

583/327

614/344

637/351

644/360

AFR 270 Alum

270/132

2.25/1.76

75/85

169/130

244/174

309/214

354/238

385/254

AFR 285 Alum

285/142

2.25/1.76

75/85

168/128

245/175

313/218

357/249

396/267

411/276

AFR 300 Alum

300/142

2.30/1.76

75/85

162/126

241/172

309/218

360/252

405/274

423/284

AFR 280 SF600 Alum

280/132

2.25/1.76
4.38
2 1/8" Pipe

75/85

169/125

244/160

301/205

349/238

383/255

AFR 295 SF600 Alum

295/142

2.25/1.76
4.38
2 1/8" Pipe

75/85

165/125

243/160

304/205

352/238

390/255

402/264

AFR 295 .250 Raised Exhaust SF600 Alum

295/142

2.25/1.76
4.38
2 1/8" Pipe

75/85

165/124

243/166

304/212

352/248

390/267

402/276

AFR 315 .250 Raised Exhaust SF600 Alum

315/142

2.30/1.76
4.38
2 1/8" Pipe

75/85

162/124

244/166

305/212

355/248

394/267

414/276

AFR 315 Bullitt Alum

315/-

2.30/1.76
4.38

N/A

162/127

241/172

309/218

360/252

405/274

423/284

427/284
@.750

Avenger CJ Ported Alum

355/155

2.20/1.76

74/80

79/75

149/138

218/176

278/200

337/226

367/262

381/282

392/293

Bennett Ported C-460

N/A

500/375

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Blue Thunder "B" Chevy Exhaust VJ Charlie Evans SF600 Alum

N/A

2.30/1.82
4.625

N/A

67/60

129/114

188/148

251/176

301/194

322/207

331/215

Blue Thunder "B" Chevy Exhaust Bowl Work Charlie Evans SF600 Alum

N/A

2.30/1.82
4.625

N/A

71/61

150/118

209/158

273/188

329/213

340/237

343/258

Blue Thunder "B" Chevy Exhaust Ported Street/Strip Charlie Evans SF600 Alum

N/A

2.30/1.82
4.625

N/A

72/67

148/122

213/163

277/191

331/215

351/241

356/265

Blue Thunder "B" Chevy Exhaust Ported Race Charlie Evans SF600 Alum

N/A

2.30/1.82
4.625

N/A

73/67

152/122

216/163

281/198

335/227

361/251

377/271

Blue Thunder "B" Chevy Exhaust Ported Gerry Cooper Alum

N/A

2.30/1.88
-
2 1/4" Pipe

N/A

163/129

229/171

294/210

343/256

373/285

391/307

410/312

Blue Thunder "B" Ford Exhaust Charlie Evans Alum

N/A

2.30/1.82
4.625

N/A

67/65

129/107

188/144

251/172

301/189

322/194

331/194

Blue Thunder "B" Ford Exhaust Bowl Work VJ Charlie Evans Alum

N/A

2.30/1.82
4.625

N/A

71/63

150/112

209/145

273/174

329/200

340/225

343/244

Blue Thunder CJ 460 CNC Chamber Alum

N/A

2.25/1.88

78/62

167/114

219/147

280/175

322/195

335/211

354/225

364/242

Blue Thunder CJ 460 Bowl and Port Alum

N/A

2.25/1.88

N/A

77/-

155/-

223/-

285/-

340/-

363/-

380/-

389/-

397/-

Blue Thunder Ported Flatlanders Stage 3 Ford Exhaust Alum

N/A

2.25/1.88

365/234

Blue Thunder Ported Flatlanders Stage 3 Chevy Exhaust Alum

N/A

2.25/1.88

365/245

Blue Thunder Ported Flatlanders Comp Ford Exhaust Alum

N/A

2.25/1.88

412/295

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Blue Thunder Ported Ford Exhaust Alum

N/A

2.25/1.88
4.50

N/A

75/63

142/113

210/151

275/184

307/214

341/239

367/256

380/270

Blue Thunder Ported Coast High Performance Comp Ford Exhaust Alum

N/A

2.25/1.88

405/295

Blue Thunder Ported Flatlanders Comp Chevy Exhaust Alum

N/A

2.25/1.88

412/322

Blue Thunder THOR Ported ET Performanc Alum

408/-

2.425/1.84
4.50

86/52

162/118

243/180

319/227

393/275

460/320

482/347

500/357

498/360

498/368

Blue Thunder THOR Ported ET Performanc Alum

440/-

2.475/1.84
4.60

74/52

168/118

245/180

320/227

400/275

452/320

493/347

513/357

525/360

534/368

Blue Thunder THOR Ported ET Performanc Alum

470/-

2.52/1.82
4.60

74/54

168/125

251/174

330/225

406/267

472/305

521/346

555/367

577/395

583/402

Blue Thunder THOR Ported Keith Craft Alum

N/A

580/400

Blue Thunder THOR Gen 2 Ported Charlie Evans Alum

N/A

-
-
No Pipe

N/A

161/125

240/176

321/233

399/300

460/335

495/352

519/361

530/368

540/372

Blue Thunder THOR Gen II Ported Meaux Racing SF600 Alum

N/A

2.48/1.85
-
No Pipe

N/A

136/122

220/176

317/222

385/264

451/307

497/327

522/341

540/350

546/355

C & C Pro 18 Ported BES Alum

472/-

2.525/1.825

161/109

245/169

315/230

392/281

459/316

500/358

533/385

553/402

567/412

Edelbrock Performer RPM Ported ET Performance Alum

N/A

2.19/1.76
4.390

N/A

74/61

157/126

227/163

292/195

339/215

370/230

383/247

395/253

Edelbrock Performer RPM 460 60669 FORD Muscle Alum

292/100

2.19/1.76
4.50

95/75

75/68

141/116

208/154

260/181

297/200

309/212

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Edelbrock Performer RPM 460 Charlie Evans Out of Box Alum

N/A

2.19/1.75
-
No Pipe

N/A

66/58

135/106

202/144

253/171

296/187

316/200

327/205

Edelbrock Performer RPM 460 Ported Charlie Evans Alum

N/A

2.19/1.75
-
No Pipe

N/A

67/57

138/114

204/158

260/189

309/216

334/230

347/241

Edelbrock Performer RPM 460 60669, 60679 SF1020 Alum

292/100

2.19/1.76

95/75

76/67

140/118

207/153

260/180

300/200

319/207

326/207

Edelbrock Performer RPM 6066, 6067 Ported Alum

N/A

160/125

230/164

289/201

330/221

360/242

379/251

392/262

Edelbrock Performer RPM 460 61649,61659 Victor Jr. 460 CJ 61669 Alum

310/100

2.19/1.76

76/67

140/118

207/153

260/180

300/200

319/207

326/207

Edelbrock Performer RPM 460 CJ 61649, 61659 SF1020 Alum

310/100

2.19/1.76

76/67

140/118

207/153

260/180

300/200

319/207

326/207

Edelbrock Performer RPM 460 CJ 61649, 61659 Jim Grubbs CCM Alum

N/A

2.19/1.76
-
Pipe

N/A

68/61

136/109

201/148

253/174

300/191

305/202

Edelbrock Performer RPM 460 CJ Out of Box Scott Johnston Alum

N/A

2.19/1.76

N/A

82/64

156/110

225/155

279/182

323/200

341/214

347/212

350/212

Edelbrock Performer RPM 460 CJ Ported Scott Johnston Alum

N/A

2.19/1.76

N/A

79/64

153/114

225/161

278/192

324/215

353/240

365/248

380/250

Edelbrock RPM 460 CJ Ported BES Alum

343/-

2.30/1.76

159/124

230/165

298/198

350/220

377/235

400/240

415/244

424/246

435/246

Edelbrock Performer RPM Ported Keith Craft Alum

N/A

2.245/1.745

75/95

390/260

Edelbrock Ported Alum

N/A

2.25/1.76

N/A

160/125

230/164

289/201

330/221

360/242

379/251

392/262

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Edelbrock Ported Nick Alum

N/A

2.19/1.76
-
No Pipe

N/A

151/112

225/150

277/179

315/200

347/215

364/223

380/228

Edelbrock Victor Jr 460 CJ 61669 SF1020 Alum

310/100

2.19/1.76

76/67

140/118

207/153

260/180

300/200

319/207

326/207

Eliminator Alum

N/A

65/63

134/135

203/188

271/233

333/265

380/286

393/297

415/305

431/313

Eliminator CJR Ported BES Alum

334/-

2.30/1.71

158/111

240/156

306/189

330/216

355/231

372/243

390/251

402/256

414/259

Eliminator F460 Ported BES Alum

N/A

2.325/1.71
4.40

130/117

210/165

281/204

333/235

372/277

398/303

420/313

439/314

450/315

Eliminator 385-902 Ported Alum

371/179

2.425/1.88

450/320

Eliminator 385-903 Ported Alum

371/179

2.425/1.88

480/350

Flow Technologies - EX-514 Ported Iron

N/A

2.35/1.88

N/A

75/56

150/118

227/150

300/191

367/270

407/270

429/293

414/308

419/301

Flow Technologies - EX-514 Dave McLain Alum

N/A

2.35/1.88

N/A

73/66

145/128

217/176

283/210

334/239

377/261

404/278

420/293

419/301

Flow Technologies - EX-514 CNC Dave McLain Alum

N/A

2.35/1.88

N/A

74/64

146/128

219/170

287/212

347/247

388/282

412/302

434/317

436/330

Flow Technologies - EX-514 Stage I Ported Alum

N/A

2.35/1.88

65-84

410/315

Flow Technologies - EX-514 Ported Charlie Evans Alum

N/A

2.35/1.88
-
No Pipe

N/A

70/67

148/116

225/154

296/190

359/229

405/268

435/298

447/317

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Flow Technologies - EX-514 Stage III Ported Alum

N/A

2.40/1.88
4.40

65-84

485/345

Jon Kaase P51 Alum

310/145

2.25/1.76

N/A

72/52

152/107

234/151

306/183

350/202

368/215

388/229

395/239

Jon Kaase P51 Charlie Evans Out of Box Alum

N/A

2.25/1.76
-
No Pipe

N/A

74/58

172/106

260/144

335/181

376/210

384/227

368/240

368/246

Jon Kaase P51 Intake Bowls Ported Charlie Evans Alum

N/A

2.25/1.76
-
No Pipe

N/A

74/58

171/106

260/144

337/181

384/210

399/227

403/240

407/246

Jon Kaase P51 Ported Charlie Evans Alum

N/A

2.30/1.76
-
No Pipe

N/A

72/57

155/112

253/151

336/187

392/219

423/242

421/255

418/264

Jon Kaase P51 SF600 Alum

310/145

2.25/1.76

105/103

175/137

258/170

330/199

375/223

395/242

401/251

Jon Kaase P51 Ported Stuska1 Alum

315/-

-
4.40

N/A

78/-

170/-

261/-

332/-

383/-

398/-

422/-

430/-

433/-

Jon Kaase SR-71 Alum

405/183

2.375/1.76

173/120

253/160

331/203

393/239

425/265

426/279

426/291

435/297

Jon Kaase SR-71 Out of Box Charlie Evans I-45 E-45 Alum

N/A

2.375/1.76
4.625
No Pipe

175/106

260/143

337/180

395/211

430/232

443/255

432/252

Jon Kaase SR-71 Ported Charlie Evans I-45 E-45 Alum

N/A

2.375/1.76
4.625
No Pipe

176/110

262/148

342/188

407/217

450/243

471/263

457/273

Jon Kaase SR-71 Ported Tony Knight Alum

N/A

2.375/1.76
4.25

N/A

84/48

182/105

268/153

340/192

401/220

442/239

463/251

454/260

461/-

Jon Kaase Boss Nine CCM Alum

N/A

2.30/1.90

N/A

79/65

161/128

244/186

308/244

366/272

409/287

406/299

396/306

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Jon Kaase Boss Nine Out of Box Charlie Evans Alum

N/A

2.30/1.90

N/A

75/53

161/128

240/206

323/254

374/276

392/294

393/303

390/307

Jon Kaase Boss Nine Ported Wells Alum

N/A

2.30/1.90
-
No Pipe

N/A

75/52

158/123

248/172

328/223

388/261

422/290

430/308

432/314

Jon Kaase Boss Nine Ported Charlie Evans Alum

N/A

2.30/1.90
-
No Pipe

N/A

74/53

163/127

276/182

356/246

409/282

432/308

430/313

428/315

Jon Kaase Boss Nine Ported Kaase SF600 Alum

N/A

2.40/1.90

N/A

178/132

268/194

352/248

424/284

477/312

495/336

510/352

Pro Comp Scott Johnston Out of Box Alum

N/A

2.19/1.76

N/A

147/99

211/138

257/159

270/172

280/182

Pro Comp Scott Johnston Ported Alum

N/A

2.19/1.76

N/A

84/52

159/108

220/159

270/190

303/220

325/237

331/-
@.660

Pro Comp Scott Johnston Ported Alum

N/A

2.19/1.76

N/A

95/-

162/-

226/-

274/-

309/-

332/-

341/-
@.675

Pro Comp Alum

N/A

2.19/1.76

N/A

65/50

107/95

162/122

208/145

245/160

267/167

295/175

Pro Comp CNC Alum

N/A

2.19/1.76

N/A

70/60

152/110

219/145

280/180

331/225

344/235

350/240

Pro Comp VJ Cleanup Alum

N/A

2.19/1.76

N/A

175/119

250/158

295/173

294/188

297/195

297/190

Pro Comp 300 Alum

300/130

2.19/1.71

73/61

153/110

219/145

241/160

260/174

291/196

306/205

Pro-FilerP/N 205 BBF C Alum

420/-

2.45/1.85

165/135

257/179

331/218

395/262

484/308

512/322

524/329

521/334

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Pro-Filer Ported Bennett I-52 E-55 Alum

N/A

2.40/1.90
-
No Pipe

N/A

166/115

243/164

304/210

356/244

410/272

462/289

486/305

504/319

Pro-Filer 550 Ported Bennett Alum

N/A

2.45/1.85

550/-

Pro-Filer BBF C Alum

420/-

2.45/1.85

171/135

255/180

333/218

396/262

483/308

511/322

524/329

525/334

Pro-Filer BBF C-460 CNC Darin Morgan SF600 Alum

N/A

2.45/1.85
-
No Pipe

N/A

150/125

237/178

312/233

390/279

456/315

498/342

525/359

540/371

540/376

Shanons Engineering - EX 514 Bowl Blend

N/A

2.35/1.94

63-78

392/288

Shanons Engineering - EX 514 Mod. Ported

N/A

2.35/1.94

63-78

418/310

Shanons Engineering - EX 514 Pro Ported

N/A

2.40/1.90

63-78

458/343

Shanons Engineering - A-series Ported

N/A

481/-

Sonny's Ported C-460

N/A

507/-

Trick Flow Street SF600

N/A

2.20/1.76

N/A

72/60

152/110

219/145

273/180

312/204

334/223

Trick Flow Street SF600

N/A

2.20/1.76

N/A

66/56

141/104

207/144

265/176

312/204

335/225

344/241

346/241

Trick Flow Street Ported SF600

N/A

2.20/1.76

N/A

74/65

142/114

209/150

277/184

329/206

355/225

372/237

392/249

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Trick Flow 429/460 SF600 Alum

290/130

2.20/1.76
4.38
2" Pipe

72/60

152/110

219/145

280/180

331/204

344/225

350/240

Trick Flow 429/460 Charlie Evans Out of Box Alum

290/130

2.20/1.76
-
No Pipe

66/50

144/100

211/138

275/168

325/193

351/211

351/222

Trick Flow 429/460 Bowl Work Charlie Evans Alum

N/A

2.20/1.76

N/A

68/54

146/104

214/143

279/178

328/206

356/227

354/235

Trick Flow 429/460 Ported Charlie Evans Alum

N/A

2.20/1.76

N/A

69/64

148/116

233/147

301/208

335/208

357/228

373/240

Trick Flow 429/460 Ported Smithberg Racing Alum

305/-

2.20/1.76
4.31
No Pipe

77/56

156/115

235/154

294/188

335/218

365/241

385/264

408/279

Trick Flow 429/460 Ported TEA Alum

325/145

2.25/1.76
-
2 Pipe

78/58

138/117

211/158

288/199

343/237

369/260

387/276

394/287

Trick Flow 429 CJ Ported Kaase Alum

N/A

2.25/1.75

N/A

245/172

308/203

350/228

375/241

395/244

401/246

Trick Flow CNC Alum

N/A

2.25/1.76

N/A

81/58

102/115

262/160

332/196

370/223

388/261

401/290

408/302

Trick Flow (A460 Style) Ported Fox Lake Stage 1 Alum

N/A

2.30/1.88

411/300

Trick Flow (A460 Style) Ported Fox Lake Stage 2 Alum

N/A

2.35/1.88

442/335

Trick Flow (A460 Style) Ported Fox Lake Stage 3 Alum

N/A

2.35/1.88

238/183

292/225

353/258

396/288

433/311

463/346

465/354

Trick Flow A460 SF600 Alum

340/-

2.30/1.88

423/300

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Trick Flow A460 SF600 Alum

340/172

2.30/1.88
4.50
2" Pipe

72/68

142/121

213/164

271/202

325/235

365/262

395/284

412/300

Trick Flow A460 Alum

340/172

2.30/1.88

72/57

142/106

213/145

271/179

325/209

365/238

395/260

412/274

Trick Flow A460 Alum

340/172

2.30/1.88

72/64

142/132

213/156

271/190

325/222

365/250

395/268

412/280

Trick Flow A460 CNC Chamber SF600 Alum

340/172

2.35/1.88
4.50
2" Pipe

N/A

76/67

160/120

246/162

312/204

357/237

392/264

418/286

428/303

Trick Flow A460 CNC SF600 Alum

360/180

2.40/1.88
4.60
2" Pipe

N/A

79/71

162/129

244/175

308/216

369/251

410/280

478/304

458/321

Trick Flow A460 Dave McLain Out of Box Alum

N/A

2.30/1.88

N/A

72/61

154/126

225/175

279/211

322/243

358/269

372/281

383/292

393/-

Trick Flow A460 Charlie Evans Out of Box Alum

N/A

2.35/1.88

N/A

157/112

233/157

293/190

345/218

380/240

390/255

393/262

Trick Flow A460 Ported Charlie Evans SF600 Alum

N/A

2.35/1.88
4.625
No Pipe

N/A

74/58

161/118

245/165

315/200

375/235

408/267

439/294

465/312

Trick Flow A460 Ported BJs Cylinder Head Alum

N/A

2.392/1.92
4.625
No Pipe

N/A

74/69

153/140

237/180

311/224

368/265

416/296

450/314

452/327

Trick Flow A460 350 Ported TEA Alum

N/A

2.35/1.88

N/A

80/63

160/131

244/179

314/227

380/271

424/311

448/339

460/361

Trick Flow A460 350 Ported TEA Alum

350/180

2.35/1.88

N/A

80/63

160/131

244/179

314/227

380/271

415/311

435/339

457/361

Trick Flow A460 360 Ported TEA Alum

360/180

2.40/1.88
4.60

85/87

80/72

170/134

251/182

325/227

389/271

430/312

455/345

463/364

Manufact.
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Trick Flow A460 Ported BES Alum

N/A

164/123

268/172

344/218

403/267

450/311

475/338

485/354

491/367

501/375

Trick Flow A460 Alum

360/180

2.40/1.88
4.60
2" Pipe

85/87

79/71

162/129

244/175

308/216

369/251

410/280

437/304

453/321

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

'68 478 Magnum Andrew Harman

N/A

2.25/1.88

N/A

86/60

142/115

189/156

227/179

257/198

279/210

290/224

'68 478 Magnum Ported Andrew Harman

N/A

2.35/2.00

N/A

85/75

183/158

220/191

254/225

283/243

318/256

336/275

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.250

.300

.350

.400

.450

.500

.600

.700

Average

'04 1/2 Stock Bill Jones Alum

N/A

1.30/1.22

N/A

79/68

143/127

178/138

181/140

180/140

'04 1/2 Minor Porting Bill Jones Alum

N/A

1.30/1.22

N/A

79/67

140/129

181/163

194/169

197/172

197/173

'04 1/2 Pretty Seriuos Porting Bill Jones Alum

N/A

1.30/1.22

N/A

85/79

147/147

193/188

210/195

222/199

229/201

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

186 Red 12 Port Ported Stage I Iron

N/A

48/49

88/76

120/91

147/107

163/123

HQ Ported Knight Engines

N/A

1.94/-

N/A

66/-

132/-

187/-

223/-

244/-

250/-

HQ Ported Knight Engines

N/A

71/52

136/103

191/138

234/157

245/165

256/169

VN 5.0l Stock

N/A

Stock

N/A

63/54

127/104

173/134

204/155

216/167

237/173

VN 5.0l Ported Stage I

N/A

65/-

133/-

182/-

214/-

237/-

237/173

VN EFI Rams Head Service Alum

N/A

2.02/1.60

69/46

127/99

177/131

210/149

226/161

232/167

236/172

237/173

VN - VT EFI Stage II CNC Bullet Cylinder Heads Alum

182/85

2.05/1.625

62/65

69/53

137/105

188/142

226/169

257/178

271/188

280/194

VN - VS EFI Stage III CNC Bullet Cylinder Heads Alum

192/87

2.05/1.625

69/55

139/108

190/146

230/173

264/182

288/192

295/200

New 2009 CNC Bullet Cylinder Heads Alum

N/A

2.10/1.60

N/A

75/62

146/110

201/150

240/185

283/202

305/214

315/222

Torque-Power 230 CNC Bullet Cylinder Heads Alum

230/91

2.15/1.625
4.00

71/58

144/103

219/144

276/185

312/220

337/229

350/237

Torque-Power 230 CNC Bullet Cylinder Heads Alum

230/91

2.15/1.625
4.125

71/58

141/103

218/144

279/185

319/220

346/229

355/237

Torque-Power 260 CNC Bullet Cylinder Heads Alum

260/-

2.20/1.625
4.125

N/A

380/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

Average

Yella Terra -3 CNC Bullet Cylinder Heads Alum

182/74

2.055/1.60

67/65

137/111

196/148

234/174

259/193

272/202

275/204

Yella Terra -9 CNC Bullet Cylinder Heads Alum

N/A

2.10/1.60

57/61

75/62

140/110

212/150

265/185

302/202

326/214

330/222

Yella Terra 12 Port (Black / Blue) Iron

N/A

1.74/1.55

56/68

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Honda B16 2 nd Gen CCH

N/A

33mm/28mm

N/A

229/183

Honda B16 2 nd Gen Ported CCH

N/A

33mm/28mm

N/A

273/228

Honda B16 Alaniz Cyl Heads

N/A

33mm/28mm

N/A

75/64

117/104

152/128

179/149

197/165

216/176

233/181

245/185

253/186

Honda B16 Ported Perfmance CNC

N/A

33mm/28mm
-
No Pipe

N/A

102/78

185/147

250/197

278/220

285/226

299/231

306/233

Honda B16 A

N/A

1.30/1.18

N/A

89/88

154/136

199/163

233/173

256/177

262/179

Honda B16 A Ported Todd

N/A

1.30/1.18

N/A

82/87

153/163

215/192

263/198

294/203

305/205

Honda B16 A Ported Kelford Cams

N/A

319/-

Honda B16 A/18 C25 CNC M2 Race Systems

123/-

33mm/ 28mm
3.285

84/76

125/120

164/147

195/166

220/179

242/190

256/203

269/209

280/214

Honda B16 R

N/A

33mm/28mm

N/A

88/78

123/115

158/144

190/167

211/180

227/180

240/191

251/193

259/194

Honda B16 R Ported

N/A

33mm/28mm

N/A

97/93

134/124

167/148

198/176

229/198

258/211

280/219

294/224

301/-

Honda B18 C

N/A

33mm/28mm

N/A

88/81

158/135

211/161

240/165

259/166

Honda B18 C Ported

N/A

33mm/28mm

N/A

89/83

159/152

221/194

269/203

288/217

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Honda B18 C1 CNC M2 Race Systems

N/A

33mm/ 28mm
3.285

85/72

126/109

164/152

191/179

218/194

241/206

259/214

273/220

283/225

Honda D16 Open Chamber CCH

N/A

30mm/26mm

N/A

229/170

Honda D16 Open Chamber Ported CCH

N/A

30mm/26mm

N/A

259/210

Honda D16 Closed Chamber CCH

N/A

30mm/26mm

N/A

221/162

Honda D16 Closed Chamber Ported CCH

N/A

30mm/26mm

N/A

255/211

Honda F22a Turbowa Ported

N/A

87/83

127/121

163/150

191/172

218/186

241/198

261/211

276/215

288/218

296/221

Honda F22a1 McFred

N/A

34mm/ 29mm

N/A

82/44

125/75

165/108

200/130

219/143

234/151

251/156

264/160

275/163

Honda F22a1 McFred Ported

N/A

34mm/ 29mm

N/A

78/66

128/104

163/137

194/161

229/178

245/187

252/194

277/198

280/202

Honda F22b2 4 Intake Mike

N/A

32mm/ 29mm

N/A

80/63

149/125

179/152

198/160

207/163

208/169

Honda F22b2 Ported Mike

N/A

32mm/ 29mm

N/A

73/64

139/124

174/166

210/188

240/200

-/205

Honda F22 '90-93 SOHC CHR Motorsports Home Made Bench

N/A

34mm/ 29mm
-
Radius on Exhaust

N/A

82/44

125/75

165/108

200/130

219/143

234/151

251/156

264/160

275/163

Honda F22 '90-93 SOHC Ported CHR Motorsports 28 Deg Back Cut on Intake Home Made Bench

N/A

34mm/ 29mm
-
Radius on Exhaust

N/A

94/81

137/110

171/142

197/172

219/193

238/207

256/215

268/221

277/229

286/234

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Honda F22 '90-93 SOHC Ported CHR Motorsports 30 Deg Back Cut on Intake Home Made Bench

N/A

34mm/ 29mm
-
Radius on Exhaust

N/A

103/91

146/110

180/142

206/172

228/193

248/207

273/215

285/221

290/229

300/234

Honda F23 Ported Galto Racing

N/A

33.9mm/28.9mm

85/77

133/116

172/141

209/163

232/176

244/184

258/190

269/195

273/196

Honda GSR Ported WAT Portflow

N/A

33mm/ 28mm
81mm

N/A

84/70

119/111

150/150

183/176

213/188

237/195

255/197

267/198

280/203

Honda H22

N/A

35mm/ 30mm

N/A

87/-

166/-

219/-

251/-

268/-

Honda H22 killer VJ

N/A

35mm/ 30mm

N/A

105/83

175/145

242/186

278/210

293/216

Honda H22 Ported DH Racing

N/A

36mm/ 31mm

N/A

92/71

142/113

185/140

216/160

242/182

265/200

284/212

296/220

307/225

316/229

321/232

Honda H22 Civic Ported Kelford Cams

N/A

1.42/1.22

N/A

94/90

140/139

178/168

212/193

238/211

258/220

272/225

283/229

290/234

Honda H22A M2 Race Systems

N/A

35mm/ 30mm
3.285

N/A

246/181

260/185

270/187

277/187

281/189

Honda H22A CNC M2 Race Systems

N/A

35.5mm/ 30.5mm
3.285

N/A

86/82

132/122

176/165

209/197

239/208

265/218

283/227

296/233

307/236

315/239

321/241

Honda H22A Ported Redline Series JG Engine Dynamics

N/A

35mm/ 30mm

N/A

290/250

Honda H22A Ported Pro Series JG Engine Dynamics

N/A

318/260

Honda H22A Pro Import Ported Kelford Cams

N/A

1.46/1.20

N/A

91/85

138/132

172/165

209/190

237/205

266/213

290/220

309/225

325/229

338/233

347/236

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Honda H22A BTCC Ported Kelford Cams

N/A

1.42/1.22

N/A

90/85

140/132

175/165

208/191

233/206

256/214

276/218

293/221

306/223

Honda K20

N/A

34.9mm/ 30mm

N/A

270/-

Honda K20 Sabre Heads

N/A

34.9mm/-

N/A

85/-

132/-

175/-

211/-

238/-

263/-

277/-

281/-

289/-

295/-

Honda K20 Ported Redline Series JG Engine Dynamics

N/A

35mm/ 30mm

N/A

305/250

Honda K20 Ported Pro Series JG Engine Dynamics

N/A

326/265

Honda K20A Mild Port Kelford Cams

N/A

1.38/1.18

N/A

87/78

136/120

176/154

215/183

245/199

268/210

282/216

291/221

298/223

309/226

Honda K20A Race Port Kelford Cams

N/A

1.44/1.18

N/A

96/106

145/155

190/191

229/212

257/219

277/226

290/232

303/236

316/239

325/241

Honda K20A-2 Mike

N/A

35mm/30mm

N/A

289/-

296/-

Honda K20A-2 Alaniz Cyl Heads

N/A

35mm/30mm

N/A

100/83

146/111

188/140

217/164

240/181

260/192

274/196

286/200

295/202

295/204

Honda K20A-2 CNC Alaniz Cyl Heads

N/A

36mm/30mm

N/A

104/84

153/118

197/152

235/194

265/221

288/241

307/251

324/258

333/263

342/268

Honda V-Tech

N/A

33mm/ 28mm

N/A

85/76

160/143

201/167

240/169

254/171

Honda V-Tech Ported M2 Race Systems

N/A

85/72

163/152

218/194

259/214

283/225

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Honda V-Tech Ported Redline Series JG Engine Dynamics

N/A

33mm/ 28mm

N/A

285/235

Honda V-Tech Ported Pro Series JG Engine Dynamics

N/A

34mm/28.5mm

N/A

312/243

Dart Honda Fits all B-Series SF600 Alum

125/-

33mm/ 28mm
81.5mm
No Pipe

99/90

168/152

215/176

250/179

269/178

Dart Honda CNC Fits all B-Series SF600 Alum

135/90

34mm/ 28mm
81.5mm
No Pipe

100/92

168/168

236/207

275/221

320/224

RHS / Pro Topline Honda V-Tech Stock Alum

N/A

33mm/ 28mm

N/A

265/-

RHS / Pro Topline Honda V-Tech Cast Blended Alum

N/A

33.5mm/ 28.5mm

N/A

275/-

RHS / Pro Topline Honda V-Tech CNC Alum

N/A

34mm/ 29mm

N/A

295/-

RHS / Pro Topline Honda V-Tech CNC Ed SF600 Alum

N/A

33mm/-

N/A

101/-

187/-

242/-

258/-

274/-

287/-

298/-

307/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.137

.201

.268

.335

.401

.468

.700

Average

Honda B-18 CNC Ported by HRD

N/A

100/90

163/144

200/190

235/205

255/218

265/225

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.098

.201

.299

.350

.402

.500

.598

Average

Honda B-16 A CHR

N/A

33mm/ 28mm

N/A

74/63

114/118

142/148

158/157

167/158

178/158

198/-

Honda B-16 A Ported CHR

N/A

75/66

132/133

156/173

182/183

194/189

222/201

242/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

2.0l (BetaII) CHR

N/A

32mm/ 27.85mm

N/A

92/80

130/104

164/129

188/146

204/156

197/161

196/165

2.0l (BetaII) Ported CHR

N/A

104/84

143/110

176/138

203/158

222/172

224/183

226/191

229/196

230/202

'10 2.0l (Theat) Bill Jones

N/A

1.38/1.143

N/A

91/77

165/140

225/169

246/175

259/178

'10 2.0l (Theat) Mild Port Bill Jones

N/A

36mm/30mm3

90/71

164/139

222/181

245/191

260/197

Tiburon 4

N/A

32mm/ 27.85mm

N/A

81/75

128/99

154/123

178/143

187/156

192/161

193/163

194/163

Tiburon 4 Ported

N/A

33mm/ 28.85mm

N/A

88/80

121/105

156/129

212/172

225/186

232/196

238/203

241/206

Tiburon 2.7l V6

N/A

32mm/ 27.5mm

N/A

83/71

113/102

150/128

168/144

180/152

186/152

185/152

Tiburon 2.7l V6 Ported NGM Stage III +1mm valve

N/A

33mm/ 28.5mm

N/A

83/80

121/123

156/166

186/180

207/185

220/189

227/192

Tiburon 2.7l V6 Ported NGM Stage IV +1mm valve

N/A

33mm/ 28.5mm

N/A

237/212

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

4.4l DOHC Ported Kelford Cams

N/A

1.46/1.30

N/A

46/39

92/87

142/135

184/171

215/197

233/205

239/210

245/214

252/219

258/222

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

TC Ported CNC Heads UK

N/A

1.562/1.496
100mm
No Pipe

N/A

23/-

49/42

76/-

104/96

127/-

143/125

157/-

168/139

175/-

178/143

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

1.6

N/A

31mm/ 26.2mm

N/A

72/-

133/-

166/-

172/-

177/-

1.6 - Import Machine Service

N/A

31mm/ 26.2mm

N/A

68/64

129/119

160/148

166/151

170/154

172/155

174/157

1.6 - Import Machine Service Ported

N/A

76/70

140/123

179/173

189/173

193/178

198/182

202/184

1.6 MX5 MK1 Sabre Heads

N/A

31mm/ 26.2mm
-
No Pipe

N/A

34/28

67/57

99/83

130/115

153/137

167/148

176/153

183/155

187/157

1.6 MX5 MK1 Ported Sabre Heads

N/A

32mm/ 27.2mm
-
No Pipe

N/A

38/31

75/70

113/104

150/134

181/149

199/157

209/162

215/164

220/168

1.8 MX5 Late Sabre Heads

N/A

33mm/ 28mm
82mm
No Pipe

N/A

36/28

72/61

112/91

147/122

173/141

189/154

199/160

205/163

208/167

1.8 MX5 Late Light Intake Porting Sabre Heads

N/A

33mm/ 28mm
82mm
No Pipe

N/A

37/28

73/61

112/91

146/122

175/141

198/154

208/160

218/163

225/167

1.8 MX5 Late Comp Intake Porting Sabre Heads

N/A

34mm/ 28mm
82mm
No Pipe

N/A

38/28

74/61

111/91

149/122

185/141

210/154

226/160

234/163

241/167

1.8 MX5 Late Larger Bore Porting Sabre Heads

N/A

34mm/ 29mm
84mm
No Pipe

N/A

39/34

79/80

119/119

158/153

192/172

215/186

229/193

237/198

240/201

1.8

N/A

33mm/ 28mm

N/A

81/50

153/93

195/120

207/126

1.8 Miata Alaniz Cyl Heads

N/A

33mm/ 28mm

N/A

38/31

76/64

114/95

149/121

175/134

188/143

196/148

200/155

200/157

202/159

1.8 Mild Port

N/A

33mm/ 28mm

N/A

83/51

159/97

208/127

232/142

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

2.0 Ported Alum

127/74

33mm/ 27.5mm

FE3

N/A

44mm/36mm
-
Pipe

N/A

103/106

136/137

160/169

180/186

189/191

226/194

234/194

FE3 Ported Level 3 Polk

N/A

44mm/36mm
-
Pipe

N/A

141/104

175/143

194/177

211/203

226/219

241/225

251/230

255/-

BP1800 Mild Port Kelford Cams

N/A

1.30/1.10

N/A

39/29

78/60

119/94

152/121

181/142

198/153

206/159

214/163

220/165

223/168

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

C36 AMG Twin Turbo 24v Sabre Heads

N/A

35mm/31mm
-
No Pipe

N/A

41/36

82/81

122/135

159/167

186/180

202/188

214/190

220/194

225/195

228/196

C36 AMG Twin Turbo 24v Ported Sabre Heads

N/A

35mm/31mm
-
No Pipe

N/A

41/37

82/81

121/134

161/187

191/203

215/211

232/218

238/220

243/224

246/229

600cc Smart Car Sabre Heads

N/A

30mm/25mm
-
No Pipe

N/A

13/11

26/23

39/34

52/43

62/51

67/55

68/59

70/61

71/63

600cc Smart Car Ported Sabre Heads

N/A

30mm/25mm
-
No Pipe

N/A

13/11

26/23

39/35

54/47

67/58

74/64

75/69

76/70

78/71

700cc Smart Car Sabre Heads

N/A

30mm/-

N/A

14/-

27/-

42/-

57/-

63/-

66/-

68/-

70/-

72/-

700cc Smart Car Ported Sabre Heads

N/A

30mm/25mm
-
No Pipe

N/A

14/11

28/22

42/36

58/51

71/64

71/68

72/69

74/69

76/68

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

200 Cdi 16v NPS

N/A

30.2mm/ 28.5mm
-
No Pipe

N/A

45/56

87/102

125/134

149/154

158/162

164/168

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

N/A

1.565/1.344

N/A

1.565/1.344

N/A

1.625/1.344

49/35

73/50

93/64

109/74

118/81

124/86

129/90

132/91

134/93

C Modified Exhaust

N/A

1.625/1.344

49/43

93/78

118/90

129/97

134/101

N/A

1.565/1.344

45/33

68/50

86/59

92/73

104/78

107/81

108/83

110/84

110/85

Aluminum Replacement

N/A

1.625/1.344

N/A

51/36

71/56

90/72

103/79

111/83

113/87

116/89

117/90

118/93

N/A

1.625/1.344

N/A

45/35

54/43

73/52

90/61

99/66

108/69

113/72

115/72

115/71

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Eclipse SOHC

N/A

240/125

Eclipse SOHC CNC M2 Race Systems

N/A

35.25mm/ 25.7mm
3.575

N/A

275/195

4G63 Gen I

N/A

34mm/ 30.5mm

N/A

229/187

237/188

4G63 Gen I '89-94 CNC M2 Race Systems

N/A

35mm/ 30.5mm
3.575

N/A

251/202

283/240

284/249

286/260

4G63 Alaniz Cyl Heads

N/A

34mm/ 30.5mm

N/A

77/75

117/117

154/151

187/174

206/189

216/197

220/199

221/200

223/202

4G63 Ported Level 4 Polk

N/A

35mm/-

N/A

106/-

161/-

188/-

241/-

270/-

298/-

309/-

320/-

334/-

346/-

357/-

4G63 AMS SF600

N/A

34mm/ 30.5mm

N/A

81/67

119/105

153/138

183/173

201/192

209/203

211/208

205/209

206/211

4G63 Ported AMS SF600

N/A

34mm/ 30.5mm

N/A

107/88

151/134

189/193

222/229

244/245

258/249

269/255

274/261

277/265

4G63 1G Ported Fox Lake SF600

N/A

280/-

289/-

291/-

4G63 2G Ported Fox Lake SF600

N/A

272-

281/-

287/-

N/A

34mm/30.5mm

N/A

78/84

150/170

204/205

218/206

225/-

1G Mild Port

N/A

83/-

157/-

222/-

235/-

244/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

1G Ported

N/A

275/-

1G Ported Mike +1mm valves

N/A

35mm/31.5mm

N/A

87/78

169/166

230/208

257/227

270/239

N/A

34mm/30.5mm
3.37
No Pipe

N/A

80/73

155/146

211/181

227/183

229/183

2G Ported

N/A

-
3.37
No Pipe

N/A

91/73

173/147

226/210

254/234

269/240

EVO 4G63 CHW Alum

N/A

34mm/30.5mm
-
No Pipe

43.3

74/75

147/142

195/176

200/179

196/182

198/181

EVO 4G63 Ported CHW Alum

N/A

35mm/31.5mm
-
No Pipe

87/85

164/159

215/211

239/227

246/229

252/231

EVO Ported Fox Lake SF600

N/A

265-

276/-

280/-

EVO 1 Sabre Heads JS

N/A

34mm/30.5mm

N/A

80/72

122/120

161/163

197/189

225/198

238/202

246/205

251/205

252/205

EVO 1 Ported Sabre Heads SF110

N/A

34mm/31.5mm

N/A

78/79

118/132

159/172

197/194

225/207

240/219

251/224

257/227

261/231

EVO 4G63 Cosworth

N/A

34mm/ 30.5mm

N/A

282/257

EVO 4G63 Ported Cosworth

N/A

335/282

EVO 8 4G63 David B

N/A

34mm/30.5mm

N/A

177/135

221/197

224/218

228/218

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

EVO 9 Kelford Cams

N/A

34mm/ 30.5mm

N/A

81/70

122/110

158/142

188/162

211/175

225/186

236/192

239/196

EVO 9 Mild Port Kelford Cams +1mm valves

N/A

35mm/ 31.5mm

N/A

89/81

131/121

169/160

200/179

227/193

245/204

257/213

266/221

EVO 9 CNC Heads UK

N/A

1.377/1.24
100mm
Pipe

N/A

77/72

115/-

154/161

188/-

211/202

219/-

222/219

226/-

227/226

EVO 9 Ported CNC Heads UK

N/A

1.377/1.24
100mm
Pipe

N/A

89/85

133/-

177/186

213/-

240/239

263/-

278/271

286/-

291/294

EVO IX Ported AMS +1mm valves SF600

N/A

35mm/ 31.5mm

N/A

107/88

151/134

189/193

222/229

244/245

258/249

269/255

274/261

277/265

EVO X AMS SF600

N/A

34mm/ 30.5mm

N/A

101/74

147/128

186/157

216/161

235/183

252/186

266/189

275/191

280/193

EVO X Ported AMS

N/A

97/86

139/141

183/199

225/226

251/233

274/235

293/238

305/239

315/240

EVO X 4B11 David B

N/A

34mm/ 30.5mm

N/A

141/142

202/197

242/212

256/219

EVO X 4B11

N/A

34mm/ 30.5mm

N/A

85/71

131/121

173/154

208/170

231/177

250/181

265/183

273/185

277/187

EVO X 4B11 Mild Ported Kelford Cams

N/A

34mm/ 30.5mm

N/A

86/80

131/127

173/157

209/178

235/189

256/194

272/197

283/198

292/200

G54B Ported Marnal

N/A

1.80/1.50

N/A

58/51

114/91

170/118

211/141

223/155

229/160

NT PPE LLC

N/A

84/73

169/156

220/185

233/191

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

NT Port PPE LLC

N/A

91/96

175/183

242/211

260/219

N/A

86-93/77-80

165-179/151-164

223-230/191-200

246-262/195-216

249-256/196-219

VR4

N/A

95/98

174/168

226/201

240/209

249/212

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Datsun 1600 Road Race Ported Tri-Mark

N/A

1.69/1.38

N/A

64/61

130/100

171/128

196/147

205/155

207/159

FJ20 Ported Kelford Cams

N/A

1.38/1.22

N/A

88/78

133/119

170/149

209/186

235/202

255/206

268/211

279/215

285/215

FJ20 Race Ported Kelford Cams

N/A

92/87

146/147

188/171

225/189

254/201

278/208

293/213

304/215

315/217

'95 KA24DE Aaron

N/A

36.6mm/ 31.3mm

N/A

99/76

171/144

223/174

242/183

244/184

'95 KA24DE Street Port Aaron

N/A

36.6mm/ 31.3mm

N/A

86/85

166/137

225/173

255/184

260/188

KA24DE

N/A

36.6mm/ 31.3mm

N/A

156/147

199/170

225/182

248/196

248/201

KA24DE Ported BMC

N/A

166/151

227/182

260/192

277/199

289/208

300/218

305/222

310/225

KA24DE Ported Cervasa

N/A

37.6mm/ 32.3mm

N/A

122/106

228/193

316/253

332/278

379/281

QR25

N/A

213/180

RB25 Ported Bullet Cylinder Heads

N/A

34.12mm/ 29.6mm

N/A

91/76

172/136

228/176

261/188

272/192

281/194

286/196

RB26 Ported Bullet Cylinder Heads

N/A

34.6mm/ 30.15mm

N/A

97/83

179/146

247/173

280/188

285/192

RB26DETT Ported Kelford Cams

N/A

1.35/1.18

N/A

88/80

129/126

164/159

198/184

228/196

252/205

269/211

282/217

289/222

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

RB30 Ported Bullet Cylinder Heads

N/A

36mm/ 29mm

N/A

53/57

106/50

152/124

193/128

196/130

198/131

202/132

RB30 Ported Bullet Cylinder Heads

N/A

1 mm OS

N/A

54/56

108/51

158/126

199/131

201/133

207/134

212/136

N/A

34.15mm/ 30.15mm

N/A

210/160

SR20DE Alaniz Cyl Heads

N/A

34.15mm/ 30.15mm

N/A

79/70

121/105

156/131

181/142

194/149

206/152

213/154

215/154

217/154

SR20DE Ported Alaniz Cyl Heads Exhaust +.5mm

N/A

34.65mm/ 30.65mm

N/A

81/71

122/105

158/133

188/152

207/163

217/169

225/173

231/176

234/177

SR20VE SF600

N/A

34.15mm/ 29.15mm

N/A

86/86

123/118

159/147

192/171

225/183

249/189

263/193

273/196

SR20VE Knight Engines

N/A

85/85

158/146

219/170

253/175

262/178

SR20VE Ported Knight Engines

N/A

92/88

175/157

246/209

283/232

302/238

SR20 Ported Kelford Cams

N/A

1.42/1.14

N/A

77/78

119/114

156/142

190/166

221/181

246/191

265/198

278/202

288/205

SR20 S13

N/A

34.15mm/ 30.15mm

N/A

89/82

161/137

200/151

215/156

216/156

SR20 S13 Ported

N/A

34.15mm/ 30.15mm

N/A

93/86

173/154

220/177

250/194

259/198

SR20 S13 Ported Bullet Cylinder Heads

N/A

34.15mm/ 30.15mm

N/A

94/87

170/155

223/177

251/194

260/198

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

VH41 V8 Kelford Cams

N/A

1.50/1.30

N/A

92/83

139/123

183/160

217/186

234/199

249/206

257/211

263/215

269/216

VH41 V8 Ported Kelford Cams

N/A

1.50/1.30

N/A

97/84

149/138

196/176

225/199

249/208

265/216

277/221

285/222

288/226

300Z VG35 Ported

N/A

62/53

119/99

163/115

181/128

186/132

194/-

350Z VQ35 M2 Race Systems

N/A

37.15mm/ 31.35mm
3.575

N/A

144/106

189/138

223/152

243/158

254/161

261/163

266/163

270/163

271/164

350Z VQ35 CNC M2 Race Systems

N/A

37.15mm/ 31.35mm
3.575

N/A

96/71

144/109

189/147

226/170

259/190

280/202

296/209

310/212

319/214

325/215

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

CA18DETT Ported /Andre' Norrback

N/A

34mm/28mm
85mm
No Pipe

N/A

63/52

122/100

178/133

223/135

251/136

264/139

269/139

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Olds 215 Dan Jones Alum

N/A

1.525/1.35

N/A

43/35

85/65

116/77

128/81

134/84

136/84

Olds 215 Dan Jones Ported Alum

N/A

1.525/1.35

N/A

48/36

95/73

124/96

150/110

165/119

168/122

Olds 215 Dan Jones Ported Alum

N/A

1.62/1.40

N/A

51/45

104/76

146/99

168/114

170/124

174/127

Olds 215 Ported Bill JonesAlum

N/A

1.60/1.418

N/A

54/43

110/81

136/108

149/120

154/126

Olds Iron

177/133

N/A

207/162

Olds 350 5 MID-AM Performance Iron

N/A

131/92

180/123

205/138

222/144

234/148

Olds 350 6 MID-AM Performance Iron

N/A

140/95

186/129

222/142

228/147

233/153

Olds '72 7A J-Chicago Iron

N/A

1.875/1.562

N/A

50/40

105/75

148/105

170/135

180/145

Olds '72 7A J-Chicago Bowl Bend AIR Bumps removed Iron

N/A

1.875/1.562

N/A

80/71

145/112

185/149

207/174

209/179

Olds 350 7A 80 Rocket SF-1020 Iron

N/A

1.875/1.562
4.155
Pipe

N/A

52/54

105/99

153/126

181/142

197/151

203/156

206/159

Olds 350 7A 80 Rocket Bowl Blend Cleanup SF1020 Iron

N/A

2.00/1.625
4.155
Pipe

N/A

62/50

132/100

190/140

220/161

229/166

229/170

232/171

Olds 350 7A Ported Knowlton Iron

N/A

2.00/1.625

N/A

272/180

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Olds 350 7-7A MID-AM Performance Iron

N/A

140/99

186/126

208/139

222/148

226/152

Olds 7A Porter Racing Heads Installed larger valves and blended the bowls I-45 E-45 Saenz S-600 Iron

N/A

1.995/1.624
4.00
No Pipe

N/A

68/49

125/105

181/150

208/172

220/178

223/183

Olds 7A Bowl Blending Filled Riser Welded Divider I-45 E-45 Iron

N/A

2.00/1.62

N/A

59/54

114/94

170/124

197/146

209/162

217/172

Olds 350 8 MID-AM Performance Iron

N/A

1.875/1.625

N/A

144/108

197/114

220/121

229/125

230/131

Olds 350 8 Ported MID-AM Performance Iron

N/A

2.00/1.68

N/A

160/116

220/142

249/161

261/170

272/180

Olds 403 4A MID-AM Performance Iron

N/A

2.00/1.50

N/A

144/92

199/111

218/123

226/128

228/130

Olds 403 4A Ported MID-AM Performance Iron

N/A

2.00/1.68

N/A

163/112

224/140

248/152

265/166

272/179

Olds A MID-AM Performance Iron

N/A

2.07/1.625

N/A

84/54

159/101

208/135

233/151

250/160

259/169

Olds B MID-AM Performance Iron

N/A

2.07/1.625

N/A

85/50

159/99

209/139

232/146

250/158

258/163

Olds B Ported Mulder Machine I-45 E-45 Iron

N/A

2.07/1.71

N/A

141/113

196/154

235/171

247/184

264/193

Olds C MID-AM PerformanceIron

N/A

2.07/1.625

N/A

85/49

162/99

211/133

233/145

250/158

259/162

Olds C Iron

N/A

2.08/1.68

N/A

230/162

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Olds C Ported Brazed Center Divider SF600 Iron

N/A

2.07/1.68
4.155

N/A

50/52

115/97

176/130

213/152

244/167

257/175

Olds C Ported Iron

N/A

220/155

250/175

275/205

290/220

Olds C Ported Zoltan Iron

N/A

2.072/1.71

N/A

78/61

149/115

199/152

236/178

259/209

279/218

Olds C Ported J S Machine Iron

N/A

2.07/1.71
4.200
No Pipe

N/A

100/78

157/131

192/164

252/182

277/190

288/193

Olds C Ported J S Machine Iron

N/A

2.07/1.71
4.200
No Pipe

N/A

94/84

162/136

216/171

259/191

289/202

307/206

Olds C Ported Rocket Ranch Iron

N/A

172/109

240/157

262/174

272/188

279/197

Olds C Ported 80 Rocket Iron

N/A

2.07/-

N/A

64/-

132/-

192/-

223/-

250/-

267/-

Olds C Ported Dave The Freak Iron

N/A

2.07/-

N/A

69/-

132/-

193/-

223/-

248/-

260/-

Olds C Ported Iron

N/A

2.07/1.71

N/A

90/69

165/116

217/146

243/164

257/176

264/148

274/189

Olds D MID-AM Performance Iron

N/A

2.07/1.625

N/A

92/50

164/98

207/133

228/147

239/157

245/166

Olds E MID-AM Performance Iron

N/A

2.07/1.625

N/A

89/48

156/92

215/127

243/147

250/158

253/166

Olds E Smitty275 SF600 Iron

N/A

70/66

144/130

248/166

278/188

300/200

314/210

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Olds G Iron

N/A

2.00/1.625

N/A

190/140

200/150

205/155

Olds G SF600 Iron

N/A

2.10/-

N/A

158/-

213/-

251/-

270/-

275/-

Olds G MID-AM Performance Iron

N/A

2.07/1.625

N/A

91/47

158/96

205/129

225/145

236/156

239/161

Olds 455 J MID-AM Performance Iron

N/A

2.00/1.625

N/A

81/49

144/89

205/121

222/125

226/126

226/127

Olds 455 J Ported MID-AM Performance Iron

N/A

2.071/1.71

N/A

166/114

229/148

252/165

264/175

271/185

Olds 455 J Ported 80 Rocket Iron

N/A

2.07/-

N/A

72/-

152/-

208/-

233/-

249/-

260/-

261/-

Olds Ka MID-AM Performance Iron

N/A

2.07/1.625

N/A

85/47

157/94

209/126

224/144

236/156

239/161

Batten Stage 2 Clean-up Bowl Port Alum

N/A

2.19/1.68

N/A

76/70

142/118

207/158

256/181

286/194

315/202

332/206

339/210
@.750

Bulldog Performance Alum

212/-

2.15/1.75
4.16

N/A

79/67

141/116

204/155

244/180

279/204

287/216

292/226

Bulldog Performance Ported Creative Flow Management Alum

250/162

2.30/1.75
4.375
No Pipe

85-83/70

155-158/114

219-220/170

270-278/202

316-325/223

338-350/243

353-373/258

361-385/270

372-394/275

Edelbrock Performer RPM 60519 SF1020 Alum

188/106

2.072/1.68

67/54

131/102

195/137

245-247/163

278-256/179

268-259/188

Edelbrock 6051 Ported Alum

N/A

315/218

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Edelbrock 60519 CCM Alum

188/-

2.072/1.68

N/A

70/53

137/95

195/132

234/168

240/185

245/194

Edelbrock 60519 Dick Miller Out of Box Alum

N/A

2.072/1.68

N/A

65/53

136/103

197/139

242/167

243/182

250/189

253/192

Edelbrock 60519 Ported Dick Miller Alum

N/A

2.072/1.68

N/A

79/68

146/115

202/151

247/174

284/190

300/203

315/209

Edelbrock 60519 CNC Dick Miller Alum

N/A

72/64

149/123

212/164

269/195

304/211

322/219

337/224

Edelbrock KTRE CNC Stage III Alum

N/A

2.072/1.68

N/A

283/211

296/214

310/214

Edelbrock KTRE CNC Stage V Alum

244/-

2.19/1.68

311/211

325/214

Edelbrock CNC BES Alum

N/A

2.165/1.69

147/115

223/154

287/186

300/208

309/219

318/217

322/219

323/215

Edelbrock CNC Competition Components Alum

N/A

2.125/1.71
4.155
No Pipe

75/67

154/114

219/149

270/175

297/195

316/209

320/219

322/222

Edelbrock Ported Raised roof Bad Port Mondello Alum

N/A

2.15/-
4.155

N/A

78/-

146/-

224/-

290/-

349/-

379/-

395/-

396/-

390/-

Knowitens Champion Race Heads Out of Box Alum

N/A

2.07/1.68

N/A

70/60

140/106

201/137

249/160

279/176

296/189

Dick Miller / Bulldog Performance - Small Block

N/A

2.08/1.690

N/A

73/57

133/93

180/131

221/169

246/182

258/204

264/216

271/221

Dick Miller / Bulldog Performance - Street Strip Alum

240/-

2.15/1.75

N/A

73/57

137/99

193/137

239/173

272/201

291/220

302/233

308/240

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Dick Miller / Bulldog Performance Alum

255/-

300/-

Dick Miller / Bulldog Performance Alum

275/-

340/-

Dick Miller / Bulldog Performance (EMC) Offset Pushrod Alum

N/A

2.25/1.75

N/A

385/-

Mondello / Knowlton Alum

375/-

2.25/1.68

329/-

350/-

380/-

401/-

Procomp Champion Race Heads Out of Box SF Alum

N/A

2.072/1.68
4.155

N/A

62/54

127/96

187/129

231/151

239/170

234/180

Procomp Smitty275 Out of Box SF600 Alum

N/A

2.072/1.68

N/A

70/-

143/-

205/-

227/-

231/-

235/-

Procomp Smitty275 Street Port SF600 Alum

N/A

2.072/1.68

N/A

73/55

146/100

207/143

247/171

270/186

288/190

301/194

Rocket Racing Alum

213/123

2.15/1.625
4.25
Pipe

100/56

156/105

212/149

272/173

296/191

312/200

Rocket Racing Alum

210/140

2.15/1.68
4.25
1.75" Pipe

100/79

156/117

212/158

272/188

296/207

312/218

Rocket Racing Out of Box Alum

212/-

2.15/1.68

N/A

139/121

193/163

242/196

266/210

278/225

Rocket Racing Ported Alum

229/-

2.15/1.68

N/A

160/-

225/-

275/-

303/-

319/-

Rocket Racing Alum

N/A

2.15/1.68
4.175
No Pipe

192/137

252/165

280/184

303/201

328/203

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

Rocket Racing Ported RR Cylinder Heads Alum

N/A

2.19/1.71
4.18

N/A

370/287

Rocket Racing / Wenzler Mild Cleanup Alum

190/113

2.07/1.62
4.125

N/A

260/170

Rocket Racing / Wenzler Street / Strip Ported Alum

190/113

2.11/1.77
4.125

N/A

300/220

Rocket Racing / Wenzler Ported Alum

N/A

350/-

Rocket Racing / Wenzler Ported Alum

N/A

2.15/1.77

N/A

134/112

206/163

263/212

312/226

351/240

346/247

351/250

SpeedMaster Alum

N/A

2.072/1.68
4.125

N/A

84/67

131/103

197/138

247/168

279/180

270/190

Z Head Ported Stage 1 Brad Wise I-52 E-45 SF600 Alum

N/A

2.225/-
4.20

134/-

211/-

273/-

319/-

330/-

340/-

341/-

342/-

Z Head Ported Stage 2 Brad Wise I-52 E-45 SF600 Alum

260/-

2.225/1.60
4.20
No Pipe

144/97

213/135

275/193

319/224

343/244

360/261

359/266

359/270

Z Head Ported Stage 3 Brad Wise I-52 E-45 SF600 Alum

260/-

2.225/1.60
4.20
No Pipe

143/97

214/142

278/180

328/222

362/251

371/268

380/277

388/282

Z Head Ported Stage 4 Brad Wise I-52 E-45 SF600 Alum

N/A

2.225/-
4.20

167/-

239/-

298/-

350/-

392/-

408/-

416/-

432/299

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.350

.400

.450

.500

.550

.600

Average

'99 2.4l

N/A

Stock

N/A

90/81

156/119

218/126

259/129

278/135

'99 2.4l Ported

N/A

Stock

N/A

107/80

162/140

224/173

268/180

282/183

086 Peak Performance

N/A

Stock
-
Pipe

N/A

73/57

149/125

222/168

251/176

267/180

274/183

-/206

086 Ported Kevin Davis

N/A

-
-
Pipe

N/A

84/131

165/140

227/182

250/194

269/202

286/207

-/237

456 Peak Performance

N/A

Stock
-
Pipe

N/A

77/68

156/135

223/164

249/168

261/171

265/173

-/198

955 Peak Performance

N/A

Stock
-
Pipe

N/A

97/68

165/128

230/149

234/152

239/154

240/160

-/171

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

1.6 Bowls Blended Bob Legere

N/A

1.80/1.55

N/A

52/52

70/70

89/86

112/102

131/110

147/119

160/125

167/133

171/136

172/139

174/140

1.6 Comp Ported Bob Legere

N/A

1.80/1.55

N/A

59/54

87/73

109/89

131/104

151/121

173/136

182/151

199/159

207/163

210/170

1.9 Bob Legere

N/A

1.57/1.34

N/A

47/38

74/55

99/70

120/85

136/92

142/99

144/104

146/105

147/107

1.9 Street Ported Calvin SF600

N/A

1.84/1.50

N/A

98/90

148/122

184/147

191/155

1.9 Street Ported Bob Legere

N/A

1.72/1.50

N/A

52/52

82/80

107/100

129/117

147/129

159/147

176/154

186/160

176/162

1.9 Comp Ported Bob Legere

N/A

1.85/1.50

N/A

63/52

89/77

119/90

145/114

166/127

185/145

201/161

208/172

211/177

215/180

2.2 Bob Legere

N/A

45mm/ 40mm

N/A

70/55

95/75

125/94

149/109

171/120

182/125

189/125

197/125

199/129

201/129

2.2 Ported Bob Legere

N/A

1.88/1.60

N/A

67/60

95/86

124/107

149/124

169/136

191/147

211/156

227/180

238/191

241/191

2.2 Street Ported Bob Legere

N/A

1.94/1.60

N/A

67/52

95/76

124/89

149/110

169/128

193/144

214/159

233/169

244/171

244/173

244/176

2.4 Bob Legere

N/A

45mm/ 40mm

N/A

60/47

84/70

114/91

141/115

166/131

185/144

182/156

185/169

2.4 Street Ported Bob Legere

N/A

1.94/1.60

N/A

60/52

87/77

115/98

141/121

167/140

188/151

212/167

228/178

233/184

236/189

241/193

Vauxhall/Opel 1.8E Sabre Heads

N/A

41mm/ 35mm
85mm
No Pipe

N/A

25/18

48/34

74/48

95/60

111/73

126/82

139/90

148/96

153/100

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Vauxhall/Opel 1.8E Ported Sabre Heads

N/A

41mm/ 36mm
85mm
No Pipe

N/A

24/20

50/44

74/65

97/81

119/95

138/109

159/116

169/120

171/125

Vauxhall/Opel XE 16V Sabre Heads

N/A

33mm/ 29mm
86mm
No Pipe

N/A

39/34

80/77

121/123

159/150

176/154

187/163

192/165

196/166

199/167

Vauxhall/Opel XE 16V Ported Sabre Heads Stage 1

N/A

33mm/29mm
86mm
No Pipe

N/A

39/35

79/73

120/111

155/146

184/163

198/169

206/173

214/174

221/176

225/178

Vauxhall/Opel XE 16V Ported Sabre Heads Stage 2

N/A

34mm/29mm
86mm
No Pipe

N/A

40/35

83/73

125/111

163/146

190/163

210/169

224/173

231/174

232/176

-/178

Vauxhall/Opel XE 16V Ported Sabre Heads Stage 3

N/A

34mm/31mm
88mm
No Pipe

N/A

40/38

83/80

126/127

166/159

198/184

219/191

234/196

241/198

247/198

252/-

Vauxhall/Opel XE 16V CNC Heads UK

N/A

33mm/ 29mm
100mm
No Pipe

N/A

42/-

83/77

128/-

159/161

189/-

203/176

212/-

220/179

227/-

231/181

Vauxhall/Opel XE Ported 16V CNC Heads UK

N/A

34mm/ 30mm
100mm
No Pipe

N/A

43/-

87/86

131/-

176/192

212/-

238/212

252/-

265/225

276/-

283/224

Vauxhall/Opel 2.0 Ecotec Sabre Heads

N/A

32mm/29mm
86mm
No Pipe

N/A

38/33

78/73

122/121

156/141

179/147

191/148

200/149

204/152

209/-

Vauxhall/Opel 2.0 Ecotec Ported Sabre Heads

N/A

32mm/29mm
86mm
No Pipe

N/A

37/35

80/81

123/130

162/157

186/168

201/173

212/177

217/181

220/184

-/185

Vauxhall/Opel VX220 CNC Heads UK

N/A

1.381/1.104
100mm
No Pipe

N/A

39/-

76/69

118/-

159/139

196/-

220/149

234/-

241/152

243/-

245/154

Vauxhall/Opel VX220 Ported CNC Heads UK

N/A

1.381/1.104
100mm
No Pipe

N/A

39/-

79/69

116/-

157/136

197/-

226/174

248/-

259/190

263/-

266/197

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

11mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

2.4 AutoSport Ported /Andre' Norrback

N/A

45mm/40mm
98mm
No Pipe

N/A

45/32

89/72

126/103

158/129

186/144

203/150

211/152

Kadett 12S

N/A

32mm/27mm

N/A

25/17

50/39

66/52

74/57

76/60

76/61

Kadett 12S Ported Stardust

N/A

34mm/29mm

N/A

35/24

69/46

91/60

105/67

112/72

115/74

C20XE Coscast NPS

N/A

33mm/29mm
-
No Pipe

N/A

62/61

118/132

164/159

187/164

195/166

198/168

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

1.4l 8v TU3HJ2 QEP Heads

N/A

22/-

39/-

55/-

70/-

80/-

86/-

88/-

89/-

90/-

91/-

1.4l 8v TU3HJ2 Ported QEP Heads

N/A

23/-

44/-

58/-

73/-

87/-

99/-

107/-

109/-

111/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

Average

1.8l 8v TU5JP NPS

N/A

39.36mm/ 31.5mm

N/A

38/30

74/56

106/79

122/89

131/93

136/95

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 4X-3H Ported SD Performance Iron HPP

N/A

2.11/1.77

N/A

76/66

141/113

195/147

220/166

241/184

249/194

Pontiac 4X-7H Iron HPP

153/140

2.11/1.66
-
Pipe

83/47

142/96

185/131

204/147

212/152

212/153

Pontiac 4X Ported Iron

N/A

91/62

157/121

206/162

234/202

246/217

255/226

Pontiac 5C-8 Iron HPP

153/138

2.11/1.66
-
Pipe

100

81/48

140/97

186/133

204/149

212/154

213/156

Pontiac 5C Iron

151/138

2.11/1.66

91-98

222/171

Pontiac 5C SD Performance Ported SF600 Iron

N/A

260/-

Pontiac 6H-6 Iron HPP

151/-

2.11/1.66
-
Pipe

124

80/51

141/101

175/134

198/148

205/155

206/156

Pontiac 6X Stock Iron

N/A

2.11/1.66

N/A

80/53

146/107

185/131

196/152

207/154

210/157

Pontiac 6X Ported RaceKrafters I-45 Iron HPP

N/A

2.11/1.77

96.2

66/55

133/106

191/149

224/170

236/182

250/186

Pontiac 6X Ported NHRA SS Lynn McCarty Iron

161/148

2.11/1.66
4.185
2" Pipe

N/A

32/54

160/114

208/157

240/178

261/193

269/210

279/216

282/221

Pontiac 6X-4 Iron HPP

153/-

2.11/1.66
-
Pipe

79/47

139/92

187/131

202/147

211/154

212/155

Pontiac 6X-4 Flowtech - Steven Magnotti SF110 Iron

N/A

2.11/1.66

N/A

78/45

135/90

180/123

198/142

202/145

206/147

207/148

209/149

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 6X-4 Ported Iron

N/A

2.11/1.66

89/48

143/90

165/122

222/146

238/156

244/163

Pontiac 6X-4 Ported Jim Hand Iron

170/-

2.11/1.77

N/A

78/70

150/129

195/168

236/193

264/211

267/219

268/223

Pontiac 6X-4 '77 Ported NHRA SS Brett Voughes - Gary Hetler I-45 E-45 Iron

N/A

2.11/1.66

201/177

234/197

267/201

285/202

Pontiac 6X-4 I-30 E-45 Ported Paul Carter SF600 Iron

N/A

2.11/1.77

N/A

74/53

139/113

187/151

223/176

236/183

245/187

250/195

236/202

236/208

239/213

Pontiac 6X-4 SD Performance Ported I-45 SF600 Iron

N/A

2.11/1.77
-
No Pipe

N/A

72/64

143/123

196/161

235/189

248/205

256/216

Pontiac 6X-4 I-30 E-45 Ported Paul Knippen Iron

N/A

2.11/1.66

N/A

83/61

154/114

204/150

235/174

243/185

247/192

248/195

251/196

Pontiac 6X-8 Iron HPP

153/-

2.11/1.66
-
Pipe

79/50

142/99

186/133

205/150

214/156

214/158

Pontiac 6X-8 NPS Iron

N/A

2.11/1.63
-
No Pipe

N/A

72/46

129/94

171/129

196/149

203/161

209/167

Pontiac 6X-8 Ported NPS Iron

N/A

2.11/1.77
-
No Pipe

N/A

60/60

128/121

191/152

229/178

240/193

242/201

246/-

Pontiac 6X-8 '77 Fully Ported Flowtech - Steven Magnotti SF110 Iron

N/A

2.11/-

N/A

78/-

145/-

198/-

229/-

241/-

253/-

258/-

263/-

267/-

271/-

Pontiac 6X-8 Ported Anderson Port Development SF1020 Iron

N/A

2.10/-
4.155

N/A

75/-

148/-

217/-

251/-

274/-

285/-

290/-

292/-

Pontiac 6X Iron

158/146

2.11/1.66

91/101

82/45

142/93

181/128

200/142

212/148

215/149

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 6X HPP Iron

N/A

2.11/1.77

88/85

153/122

206/164

221/185

232/196

Pontiac 6X Jim Hand Iron

N/A

2.11/1.66

N/A

80/45

138/93

181/128

207/142

212/148

214/149

Pontiac 6X Jim Hand Ported Iron

N/A

2.11/1.77

N/A

83/57

158/114

205/136

239/143

244/150

248/152

Pontiac 6X Jim Hand Ported Iron

N/A

2.11/1.77

N/A

83/66

158/114

205/151

239/179

244/198

248/207

Pontiac 6X SD Performance Ported Cyl 1 SF600 Iron

165/-

2.11/1.77

N/A

84/59

146/117

185/155

221/180

250/200

260/212

Pontiac 6X Jim Butler Ported SF600 Iron

N/A

245/-

Pontiac 6X Jim Butler Race Ported SF600 Iron

N/A

267/-

Pontiac 12 Jim Butler Ported SF600 Iron

N/A

2.11/1.77

N/A

153/106

219/149

256/177

271/197

293/217

299/222

Pontiac 13 Flowtech - Steven Magnotti SF110 Iron

N/A

2.11/1.77

N/A

77/-

145/-

177/-

198/-

202/-

203/-

204/-

207/-

Pontiac 13 '70 Fully Ported Flowtech - Steven Magnotti Exhaust 30 Deg Back Cut SF110 Iron

183/-

2.11/1.77
-
No Pipe

N/A

78/52

150/105

208/138

253/166

267/175

278/194

285/200

291/212

295/219

-/227

-/235

Pontiac 13 '70 Fully Ported Flowtech - Steven Magnotti Exhaust 30 Deg Back Cut SF110 Iron

183/-

2.11/1.77
-
2" Pipe

N/A

78/-

150/-

208/-

253/-

267/-

278/-

285/-

291/-

295/-

-/243

Pontiac 15 '70 Iron HPP

N/A

1.96/1.66

N/A

62/42

124/89

166/117

189/141

192/152

192/155

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 15 '70 Perf VJ Iron HPP

N/A

1.96/1.66

N/A

69/49

139/93

169/121

193/149

200/153

201/156

Pontiac 15 VJ I-30 E-45 Bob Eiler Iron

N/A

1.96/1.66
4.25 offset .125
No Pipe

N/A

73/44

139/86

178/121

192/145

193/149

193/155

195/159

197/162

Pontiac 15 Ported SD Iron

N/A

2.055/1.71

77.5

70/64

138/117

199/153

238/178

252/201

263/215

Pontiac 15 '68 Fully Ported Flowtech - Steven Magnotti SF110 Iron

179/-

2.11/-

N/A

77/-

146/-

234/-

250/-

262/-

266/-

269/-

275/-

-/243

Pontiac 16 Iron

162/150

2.11/1.77

72-75

244/171

Pontiac 16 Iron

162/150

2.11/1.77

N/A

85/59

153/110

186/134

208/148

224/154

232/157

Pontiac 16 Jim Butler SF600 Iron

165/152

2.11/1.77

N/A

143/109

208/145

228/158

245/164

252/176

259/176

Pontiac 16 Jim Butler Ported SF600 Iron

N/A

2.11/1.77

136/-

182/-

225/-

250/-

253/-

Pontiac 16 Jim Butler Ported SF600 Iron

N/A

2.11/1.77

N/A

154/106

220/149

256/178

271/198

293/217

299/223

Pontiac 16 '68 Flowtech - Steven Magnotti Iron

N/A

2.11/1.77

N/A

75/43

142/82

177/120

198/140

201/149

203/156

204/159

207/162

-/165

Pontiac 16 '68 Ported Flowtech - Steven Magnotti Iron

N/A

2.11/1.77

N/A

78/47

145/109

198/147

229/172

241/180

253/187

258/194

263/203

265/208

Pontiac 17 '68 350 Ported SD SF600 Iron

174/-

2.11/1.77

73/65

149/123

205/159

238/182

260/202

268/219

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 46 Ported SD SF600 Iron

N/A

2.11/1.77
-
No Pipe

73/66

148/118

196/153

223/175

249/191

258/200

Pontiac 47 '69 Paul Carter SF600 Iron

N/A

1.96/1.66
-
Pipe

N/A

61/54

112/92

162/127

184/146

191/154

193/165

195/170

195/-

Pontiac 47 '69 Paul Carter I-45 E-45 above with larger valves SF600 Iron

N/A

2.11/1.77
-
Pipe

N/A

70/64

136/117

178/149

199/170

205/178

210/181

210/186

210/190

211/194

212/197

213/200

Pontiac 48 Ported Iron

N/A

2.11/-
4.125

N/A

76/-

140/-

194/-

222/-

247/-

254/-

Pontiac 48 Ported SD SF600 Iron

N/A

2.11/1.77

142/126

196/164

238/192

259/209

265/221

272/229

Pontiac 48 Ported Jim Robertson Iron

N/A

2.11/1.77
4.21

N/A

75/63

144/115

206/144

263/168

282/179

286/187

283/193

284/202

Pontiac 62 Iron

162/150

2.11/1.77

72-75

212/175

Pontiac 62 Flowtech - Steven Magnotti SF110 Iron

N/A

2.11/1.77

N/A

77/43

145/82

177/120

198/140

202/149

203/156

204/159

-/162

-/165

Pontiac 62 Ported Lloyd Elliott Iron

N/A

2.11/1.77

72-75

216/141

242/166

254/184

257/194

Pontiac 62 Paul Carter Iron

N/A

2.11/1.77
-
Pipe

N/A

68/47

132/94

179/126

195/144

197/151

201/156

203/166

205/167

Pontiac 62 Ported Paul Carter Iron

N/A

2.11/-

N/A

86/-

148/-

188/-

240/-

255/-

Pontiac 62 Ported Paul Carter Iron

N/A

2.11/-

N/A

82/-

137/-

183/-

223/-

240/-

251/-

257/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 62 Ported R R Automotive HPP Iron

N/A

2.11/1.77

N/A

250/165

Pontiac 62 Jim Butler Ported SF600 Iron

N/A

2.11/1.77

N/A

295/-

Pontiac 62 Slowbird Ported Flowed with Intake Iron

N/A

2.125/1.77

N/A

73/52

159/123

221/153

241/176

234/191

220/200

Pontiac 64 HPP / Jim Butler SF600 Iron

N/A

2.11/1.77

N/A

140/116

182/144

198/149

202/162

202/175

Pontiac 64 '70 SD Performance Ported SF600 Iron

N/A

2.11/1.77

N/93

72/61

143/117

195/150

232/177

249/198

254/-

-/217

Pontiac 64 Ported Jim Hand Iron

163/-

2.11/1.77

N/A

205/149

254/202

Pontiac 76 '65 Flowtech - Steven Magnotti SF110 Iron

N/A

1.92/1.66
4.00

N/A

62/-

114/-

160/-

169/-

174/-

177/-

Pontiac 76 '65 Bowl Ported Flowtech - Steven Magnotti 45 Deg Seat 30 Deg Back Cut SF110 Iron

N/A

1.94/1.66
4.00

N/A

58/-

126/-

176/-

197/-

Pontiac 76 '65 Fully Ported Flowtech - Steven Magnotti 45 Deg Seat 30 Deg Back Cut SF110 Iron

N/A

1.94/1.66
4.00

N/A

61/62

129/114

196/160

225/169

237/174

240/177

249/178

250/-

253/-

Pontiac 77 Iron

N/A

1.92/1.66

82/46

145/86

177/111

185/128

189/138

194/143

Pontiac 92 Mild Porting Lloyd Iron

N/A

1.92/1.66

N/A

199/132

226/154

231/168

231/176

Pontiac 93 Iron

N/A

1.92/1.66

181/119

186/130

191/135

194/140

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 96 '71 Flowtech - Steven Magnotti Iron

N/A

2.11/1.77

N/A

76/50

135/95

177/128

199/148

204/153

206/161

208/164

210/166

Pontiac 96 '71 HRM Iron

N/A

2.11/1.77

N/A

154/110

187/150

202/165

205/182

207/184

Pontiac 96 '71 Nunzi Modified Intake HRM Iron

N/A

2.11/1.77

N/A

141/110

186/150

220/165

238/182

238/184

Pontiac 197 Iron

169/153

2.11/1.77

N/A

97/53

167/101

186/118

206/143

216/154

218/159

Pontiac 670 Iron

162/150

2.11/1.77

87/41

152/100

198/136

204/166

205/185

205/194

Pontiac 670 Ported Iron

N/A

2.11/1.77

N/A

159/117

214/166

242/190

249/204

246/214

Pontiac 670 Paul Carter Iron

N/A

2.11/1.77
-
Pipe

82/54

149/98

193/130

208/157

211/165

212/171

213/177

214/181

215/186

215/188

218/-

Pontiac 670 Ported Paul Carter 7mm stem Iron

N/A

2.08/-

N/A

77/-

155/-

232/-

279/-

274/-

276/-

278/-

281/-

284/-

288/-

Pontiac 670 Ported Shanons Engineering Iron

N/A

75/55

149/116

208/155

236/185

239/206

242/218

241/225

241/228

Pontiac 670 SD Performance Ported SF600 Iron

N/A

2.11/1.77

N/A

250/200

Pontiac 670 SD Performance Ported SF600 Iron

175/155

2.11/1.77

90/57

152/110

195/145

233/168

257/184

268/197

Pontiac 7F6 '72 HPP / Jim Butler SF600 Iron

N/A

2.11/1.77

N/A

151/120

198/148

220/168

229/182

231/188

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 7F6 Flowtech - Steven Magnotti SF110 Iron

N/A

2.11/1.77

N/A

77/-

152/-

201/-

218/-

227/-

231/-

Pontiac 7K3 '72 CCM Iron

N/A

2.11/1.77

80/51

143/96

180/125

201/142

211/162

215/168

219/171

Pontiac 7K3 Flowtech - Steven Magnotti SF110 Iron

N/A

2.11/1.77

No Pipe

N/A

76/53

135/95

177/128

199/148

204/153

206/161

208/164

210/166

-/168

Pontiac 7H1 Ported I-45 E-45 Iron

N/A

1.96/1.77

N/A

64/56

128/112

180/141

211/158

219/163

227/-

Pontiac Ram Air III Iron

N/A

2.11/1.77

162/98

197/133

208/150

212/164

216/172

Pontiac Ram Air IV 722 ('69) Iron

187/162

2.11/1.77

65-71

225/177

Pontiac Ram Air IV 722 ('69) Iron

187/162

2.11/1.77

65-71

235/177

Pontiac Ram Air IV 722 ('69) Ported Iron

211/-

2.11/1.77

65-71

-/195

282/-

Pontiac Ram Air IV 614 Flowtech - Steven Magnotti Iron

N/A

2.11/1.77

N/A

85/-

152/-

194/-

214/-

217/-

220/-

228/-

232/-

Pontiac Ram Air IV 614 ('70) Iron

187/162

2.11/1.77

65-71

240/177

Pontiac Ram Air IV 614 Ported I-45 E-45 SF600 Iron

N/A

2.08/1.77

N/A

78/58

146/108

207/142

253/171

272/181

280/189

283/197

285/203

287/209

289/213

295/223

Pontiac Ram Air IV Ported Dan Whitmore I-30 E-45 Iron

N/A

2.11/1.77

N/A

87/52

160/104

214/148

249/180

260/187

262/195

265/202

266/208

268/213

270/218

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac Ram Air IV Ported Dan Whitmore I-45 E-45 Iron

N/A

2.125/1.77

N/A

77/76

145/134

215/171

272/201

281/207

289/214

291/219

288/223

291/225

294/227

Pontiac Ram Air IV Minor Pocket Port Iron

N/A

2.11/1.77

N/A

232/184

Pontiac Ram Air IV KRE Ported Iron

N/A

2.11/1.77

N/A

305/-

-/250

Pontiac Ram Air V 44 Iron

N/A

2.19/1.77
4.18
No Pipe

N/A

151/86

164/117

196/145

252/164

272/176

286/185

296/190

Pontiac Ram Air V HPP Iron

N/A

2.19/1.73

N/A

324/209

Pontiac Ram Air V Ported Arrowhead Automotive SF600 Iron

274/-

2.19/1.73
4.18
No Pipe

N/A

73/57

150/109

222/152

279/186

324/210

356/229

372/234

384/239

Pontiac Ram Air V Ported Juan Mendoza Iron

N/A

2.20/1.77

N/A

77/52

143/108

203/152

257/188

279/200

303/212

317/222

330/238

335/242

344/249

Pontiac 455 HO '71 197 Flowtech - Steven Magnotti 3 Angle VJ Deep 60 Deg Bottom Cut SF110 Iron

N/A

2.11/-

N/A

88/-

160/-

199/-

219/-

234/-

240/-

241/-

243/-

Pontiac 455 HO '71 197 Ported I-30 Iron

N/A

2.11/-
4.155

N/A

82/-

153/-

202/-

230/-

240/-

243/-

244/-

247/-

249/-

Pontiac 455 HO '71 197 Ported Anderson Port Development I-45 Iron

N/A

2.10/-
4.155

N/A

76/-

165/-

230/-

256/-

263/-

270/-

276/-

278/-

281/-

Pontiac 455 HO '72 HOB Racing SF600 Iron

N/A

2.11/1.77
4.25

N/A

80/63

157/112

201/140

226/162

231/169

232/174

233/178

Pontiac 455 SD Iron

N/A

2.11/1.77

N/A

249/161

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Pontiac 455 SD Ported Bob Wise Iron

206/186

2.11/1.77

82/68

156/130

229/171

263/193

279/208

292/221

Pontiac D-Port KRE Ported Iron

N/A

285/240

Pontiac D-Port SD Performance Street Ported SF600 Iron

N/A

240/-

Pontiac D-Port SD Performance Street/Strip Ported SF600 Iron

N/A

260/-

Pontiac 10045427 Alum

460/145

2.28/1.949

252/195

324/237

378/270

405/285

432/297

Pontiac 10045427 Alum

N/A

439/327

448/332

Pontiac 10045427 Alum

N/A

2.40/1.90

N/A

470/345

AllPontiac Jon Kaase Ported Alum

N/A

2.23/1.71

420/275

DCI Motorsport Tiger 12 Deg SF600 HPP Alum

310/-

2.25/1.80
4.25

76/63

145/112

208/161

267/196

316/230

358/252

388/264

412/269

422/276

Tiger Alum

310/-

2.25/1.80
4.375

N/A

201/-

270/-

297/-

322/-

348/-

371/-

389/-

402/-

412/-

421/-

Tiger / AP 12 Deg SF600 Alum

N/A

2.30/1.80

N/A

416/-

Tiger Ported Race 12 Deg SF600 Alum

310/-

2.30/1.80

N/A

75/45

138/86

212/124

282/166

341/204

384/233

402/251

414/253

422/267

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Tiger Ported Fully 12 Deg SF600 Alum

N/A

2.35/1.90

N/A

71/61

139/108

202/146

274/186

339/220

385/252

421/273

439/285

450/290

Tiger Ported Kaase (EMC - 507 ci) 12 Deg SF600 HPP Alum

N/A

2.23/1.72

N/A

161/110

248/157

317/205

366/244

392/263

410/275

421/283

Tiger Ported H&M Airflow Dynamics 12 Deg Alum

N/A

2.35/1.90

N/A

247/191

308/249

358/286

399/312

439/322

473/332

475/340

Tiger Ported Ceralli Competition Engines Alum

N/A

2.35/-
4.40

N/A

67/-

134/-

213/-

292/-

363/-

417/-

453/-

475/-

486/-

494/-

498/-

DCI Motorsport RAV SF600 Alum

N/A

2.20/1.74
4.25

86.6/60.4

147.8/98.7

200.6/137.8

257/183.5

302.6/214.1

336/244.7

358.2/262

364.1/271.6

373.1/274

380.5/276.5

DCI Motorsport RAV Bowl Clean Up Alum

N/A

2.20/-
4.20

N/A

89/-

168/-

240/-

298/-

338/-

367/-

375/-

384/-

400/-

416/-

426/-

DCI Motorsport RAV 225 Ported Alum

N/A

2.25/-
4.20

N/A

319/-

361/-

391/-

406/-

426/-

433/-

451/-

DCI Motorsport RAV 227 Ported Alum

N/A

2.27/-
4.20

N/A

88/-

177/-

244/-

305/-

353/-

380/-

404/-

428/-

445/-

DCI Motorsport RAV 234 Ported Alum

N/A

2.34/-
4.25

N/A

80/-

150/-

220/-

289/-

366/-

405/-

440/-

459/-

470/-

483/-

496/-

DCI Motorsport RAV Street Ported Alum

N/A

2.25/1.68
4.25

N/A

84/64

155/114

203/141

260/170

316/201

370/238

403/256

420/265

430/272

439/280

DCI Motorsport RAV Comp Ported Alum

N/A

2.35/1.67
4.25

N/A

242/143

316/185

370/219

418/244

448/257

477/269

488/287

501/297

Edelbrock 6057 Alum CCM

215/175

2.11/1.66

65/40

134/102

186/133

228/161

260/177

282/184

293/190

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Edelbrock Performer 60579 SF1020 Alum

215/175

2.11/1.66

72/56

138/106

198/141

239/163

264/175

275/185

Edelbrock Performer RPM 60599 SF1020 Ram Air IV Exhaust Alum

215/175

2.11/1.66

71/69

143/120

208/151

253/173

272/191

286/199

Early ('97) Edelbrock Jim Butler Ported SF600 Alum

228/-

2.11/1.77
4.185

N/A

58/51

139/109

206/150

262/183

289/209

304/220

306/225

307/225

Edelbrock Jim Butler Ported SF600 Alum

N/A

2.11/1.77
4.200

152/120

212/159

262/197

297/219

310/226

315/233

Edelbrock Jim Butler Ported HPP SF600 Alum

N/A

2.11/1.77

72/52

148/106

219/158

277/197

314/223

326/236

328/241

Edelbrock Chapman Ported Alum

232/-

2.20/1.77
-
No Pipe

71/57

148/130

219/174

272/214

303/221

321/228

325/233

Edelbrock S/P Ported ET Performance Alum

235/-

2.20/1.77
4.18

73/54

149/100

226/145

279/179

324/239

347/254

346/264

Edelbrock KRE Ported Alum

N/A

2.11/1.77

N/A

328/260

Edelbrock CNC Bruce RRE SF600 Alum

235/-

2.15/1.65

75/53

150/108

211/149

264/184

306/199

323/210

324/226

327/229

Edelbrock Ported Steve C SF600 Alum

227/-

2.15/1.77
4.20

83/82

151/145

220/195

276/230

301/248

313/255

317/260

Edelbrock Ported Steve C SF600 Alum

234/-

2.15/1.765
4.20

71/52

151/115

228/173

282/217

312/237

324/242

329/248

Edelbrock Bowls and Port Clean up Alum

N/A

2.15/1.77

78/64

149/118

212/152

258/182

288/217

302/223

311/229

313/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Edelbrock Ported Alum

N/A

2.15/1.77

N/A

330/250

Edelbrock Ported BES Alum

N/A

2.11/1.66

325/-

Edelbrock SD Performance Street Ported SF600 Alum

N/A

2.11/1.77

N/A

295/-

Edelbrock SD Performance Street/Strip Ported SF600 Alum

N/A

2.19/1.77

N/A

310/-

Edelbrock SD Performance Race Ported SF600 Alum

235/-

2.19/1.77
4.185
Pipe

77/66

156/123

215/178

266/217

303/238

321/247

333/252

Edelbrock SD Performance Race Ported SF600 Alum

247/-

2.20/1.74
4.25

N/A

350/-

Edelbrock SD Performance Race Ported (Offset Rockers) SF600 Alum

267/-

2.25/1.74

N/A

75/63

149/126

216/173

270/211

316/238

347/258

366/275

-/286.8

Edelbrock SD Performance SF600 Alum

N/A

2.19/1.77
4.185
Pipe

75/67

147/128

212/181

262/218

297/235

319/244

332/249

Edelbrock Mild Port DCI SF600 Alum

N/A

2.11/1.66
-
Pipe

N/A

68/58

140/103

218/136

258/162

278/177

290/193

302/201

Edelbrock Ported DCI (EMC) Alum

N/A

280/196

320/224

350/245

370/259

Edelbrock Ported Jim Robertson Alum

N/A

2.19/1.77

N/A

78/-

143/-

211/-

280/-

326/-

349/-

360/-

359/-

Edelbrock Ported Anderson Port Development Alum

N/A

2.125/-
4.155

N/A

73/-

130/-

196/-

251/-

298/-

331/-

349/-

357/-

364/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Edelbrock Ported Anderson Port Development Alum

N/A

2.125/-
4.31

N/A

81/-

141/-

206/-

259/-

308/-

342/-

358/-

370/-

374/-

Edelbrock Ported Calvin Hill I-45 E-45 BC Alum

N/A

2.19/1.77
4.21

N/A

78/65

161/117

230/165

279/219

317/254

344/277

350/286

359/286

Edelbrock Ported H&M Airflow Dynamics Alum

N/A

2.19/-
4.35

N/A

153/-

232/-

297/-

341/-

368/-

374/-

372/-

Edelbrock Performer RPM CNC 615xx SF110 CCM Alum

N/A

2.11/1.66

66/56

147/115

206/156

235/178

259/186

277/197

Edelbrock D Port 61589 SF1020 Alum

195/145

2.11/1.66
4.15

65/52

136/103

199/130

237/145

255/151

262/157

263/159

Edelbrock D Port 61569 SF1020 Alum

195/145

2.11/1.66
4.15

64/52

139/104

200/131

235/145

249/151

256/156

258/157

Edelbrock D Port HPP Alum

185/145

2.11/1.66

N/A

272/181

Edelbrock D Port Jim Butler Ported I-45 E-45 SF600 Alum

N/A

2.11/1.77
4.200
2" Pipe

135/92

203/170

249/208

277/227

290/236

297/242

Edelbrock D Port Jim Butler Ported I-45 E-45 87 cc Milled Alum

N/A

2.11/1.77

142/129

206/170

254/206

299/227

307/238

312/244

Edelbrock D Port Jim Butler -R Ported I-45 E-45 Alum

N/A

2.19/1.77
4.200

71.5

145/121

211/164

267/199

301/221

310/229

312/234

Edelbrock Ported Paul Knippen Alum

N/A

2.11/1.77
4.25

N/A

76/63

150/116

221/162

310/197

317/219

333/242

335/249

349/254

353/265

Edelbrock W/P SD Performance Race Ported SF600 Alum

267/-

2.25/1.74

N/A

370/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Edelbrock W/P Ported SF1020 Alum

N/A

2.25/-
4.375

N/A

69/-

136/-

201/-

258/-

309/-

348/-

370/-

381/-

390/-

392/-

Edelbrock W/P Ported ET Performance Alum

260/-

2.20/1.77
4.350

76/54

159/100

227/145

291/179

338/239

352/254

365/264

Edelbrock W/P Ported Jim Butler SF600 Alum

275/-

2.19/1.77

N/A

370/268

Edelbrock W/P Ported Alum

N/A

2.18/1.76

N/A

97/71

169/125

228/185

278/227

317/260

339/280

357/287

366/290

Edelbrock W/P Ported Ondo Performance Alum

255/-

2.18/1.77
-
2" Pipe

97/71

169/137

228/200

278/260

317/282

339/285

357/292

366/295

375/295

Edelbrock W/P Ported Anderson Port Development SF1020 Alum

N/A

2.125/-
4.31

N/A

69/-

145/-

218/-

279/-

328/-

360/-

365/-

374/-

378/-

384/-

Edelbrock W/P Ported Anderson Port Development SF1020 Alum

N/A

2.19/-
4.31

N/A

75/-

158/-

234/-

295/-

349/-

377/-

390/-

393/-

396/-

399/-

Edelbrock Victor HP 12 Deg HPP Alum

N/A

2.19/1.77

N/A

400/270

Edelbrock PRO Port Ported John Marcella Alum

N/A

2.30/1.68

N/A

243/-

318/-

380/-

434/-

447/-

460/-

466/-

460/-

Edelbrock PRO Port Ported BES / Butler Alum

N/A

2.35/1.68

148/108

239/161

311/203

376/240

411/259

433/273

441/259

450/291

452/298

Edelbrock PRO Port (EMC '13) Ported Speier Racing Heads Alum

N/A

2.25/1.65

161/108

225/150

282/186

330/208

366/232

382/241

385/251

387/257

388/260

Edelbrock PRO Port (EMC '13) Ported Speier Racing Heads Alum

N/A

2.35/1.65
-
Pipe

N/A

163/113

232/156

283/194

338/229

363/240

373/247

375/250

377/253

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Edelbrock PRO Port (EMC '14) Ported Speier Racing Heads I-45 E-50 Alum

N/A

2.35/1.65
-
No Pipe

N/A

170/117

240/150

300/176

352/197

379/228

388/241

390/250

392/256

394/260

H&M Airflow Dynamics Ram Air V Based Billet Alum

N/A

2.35/1.75

N/A

155/108

231/175

319/242

401/293

456/323

488/339

510/345

517/352

520/-

KRE D-Port CCM Alum

185/150

2.11/1.66

N/A

67/55

148/100

198/134

227/154

235/170

236/180

234/183

KRE D-Port HRM Alum

N/A

2.11/1.66

N/A

90/70

164/130

224/186

257/197

265/218

KRE D-Port Ported 310 Alum

N/A

2.11/1.66

78/46

152/116

216/165

274/208

300/224

308/243

312/249

KRE D-Port Tom S Cyl 1 Alum

N/A

2.11/1.66
4.18
Pipe

N/A

71/56

131/107

177/143

215/167

241/187

259/203

KRE D-Port Tom S / Joe Sherman Ported SD Performance 290 Alum

N/A

2.11/1.66

N/A

69/56

147/113

203/146

244/169

272/181

291/190

291/196

KRE D-Port Tom S SD Performance Ported Alum

N/A

2.11/1.77
4.185
Pipe

N/A

74/62

149/120

207/158

240/180

274/181

295/216

KRE D-Port Westech Alum

N/A

2.11/1.66

N/A

63/57

135/108

187/137

209/162

220/171

226/178

KRE D-Port Out of Box VJ Paul Carter Alum

N/A

2.11/1.66

N/A

62/56

128/111

180/141

220/163

232/170

241/173

244/176

247/178

248/179

KRE D-Port Ported Paul Carter SF600 Alum

N/A

2.11/1.66

N/A

65/64

132/118

187/151

236/179

258/189

276/197

291/203

298/208

298/213

KRE D-Port Alum

180/157

2.11/1.66
-
Pipe

N/A

92/85

152/141

201/182

236/210

256/226

263/232

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

KRE D-Port Ported SF600 Alum

N/A

2.11/1.66

N/A

68/54

137/103

193/136

243/157

264/165

282/171

297/179

305/186

309/190

314/195

317/202

KRE D-Port Above VJ and 1.77 exh Paul Carter SF600 Alum

N/A

2.11/1.77

N/A

71/65

137/120

201/160

251/187

273/198

291/205

303/211

311/216

316/219

319/222

320/227

KRE D-Port Ported Alum

N/A

2.11/1.66
-
Pipe

N/A

89/68

162/119

210/178

266/208

278/226

289/240

292/244

KRE D-Port Ported Alum

N/A

2.11/1.66
-
Pipe

N/A

88/66

165/123

216/181

278/210

299/228

308/242

312/247

KRE D-Port Ported 312 Bruce Out of Box SF600 Alum

N/A

2.11/1.66
4.25

N/A

82/-

149/-

197/-

239/-

266/-

282/-

284/-

KRE D-Port Ported Alum

N/A

2.11/1.66
-
Pipe

N/A

85/68

164/126

216/190

286/216

302/228

318/236

324/246

KRE D-Port Ported Alum

N/A

2.19/1.66
-
Pipe

N/A

90/65

166/121

224/180

282/215

313/236

328/251

339/259

KRE D-Port Ported Dave/SD I-45 E-45 SF600 Alum

N/A

2.11/1.77

N/A

76/68

150/125

211/164

256/196

284/217

296/-

-/230

KRE D-Port Ported Dave/SD Out of Box SF600 Alum

N/A

2.19/1.66

N/A

77/58

141/117

193/151

246/176

288/197

316/211

326/220

KRE D-Port Ported Dave/SD Reworked SF600 Alum

N/A

2.19/1.66

77/63

151/115

205/153

250/178

288/200

319/227

337/238

KRE D-Port SD Performance Race Ported 290-292 SF600 Alum

197/-

2.11/1.77

N/A

290/-

KRE D-Port SD Performance Race Ported SF600 Alum

N/A

2.11/1.77

N/A

72/-

145/-

202/-

253/-

281/-

291/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

KRE D-Port SD Performance Race Ported 300-305 SF600 Alum

204/-

2.11/1.77

N/A

300/-

KRE D-Port SD Performance Race Ported 304 SF600 Alum

N/A

2.11/1.77
4.185
Pipe

N/A

75/68

148/127

211/167

260/195

290/219

304/231

KRE D-Port Ported Pushrod offset .225" Jim Robertson Alum

N/A

2.15/1.68
4.31

N/A

77/71

156/123

221/163

275/199

317/227

322/244

335/254

358/265

370/268

KRE D-Port Darby Ported Alum

N/A

2.19/1.66
-
No Pipe

N/A

77/57

149/118

202/158

249/184

296/230

319/219

339/232

347/237

KRE High-Port Alum

277/-

2.20/1.70
-
Pipe

45-56

85/71

170/129

234/179

284/221

316/248

322/263

331/270

KRE High-Port Out of Box w VJ SDTempest Alum

N/A

2.20/1.70
4.21
No Pipe

N/A

76/66

138/119

197/152

258/180

299/190

311/196

326/202

327/205

330/209

KRE High-Port Ported 1 Alum

N/A

2.20/1.70
-
Pipe

N/A

82/70

162/126

232/178

286/219

322/234

342/248

351/259

KRE High-Port Ported 2 Alum

N/A

2.20/1.70
-
Pipe

N/A

85/74

168/130

244/176

298/220

344/236

356/245

365/259

KRE High-Port Ported 3 Alum

N/A

2.25/1.75
-
Pipe

N/A

94/73

193/130

256/185

307/226

345/229

372/263

378/271

382/277

KRE High-Port Ported Calvin Hill Alum

N/A

2.20/1.70

N/A

168/90

243/140

295/182

344/214

387/239

395/246

392/254

390/263

KRE High-Port Ported Calvin Hill Alum

N/A

2.20/1.70
4.35

N/A

155/79

228/133

281/175

338/206

389/236

418/255

421/274

KRE High-Port Ported 1 Alum Rocker Shafts

N/A

2.25/1.75
-
Pipe

N/A

90/73

188/133

253/191

308/224

347/230

382/262

396/270

402/278

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

KRE High-Port Ported 2 Alum Rocker Shafts

N/A

2.25/1.75
-
Pipe

N/A

92/73

186/137

261/196

316/228

353/235

380/264

407/272

420/276

KRE High-Port Ported Len Caverly (EMC) Alum

N/A

2.23/1.75

N/A

262/199

325/228

355/251

370/265

385/273

KRE High-Port Ported Mike Semchee (EMC) Alum

N/A

2.25/1.75

88/83

173/134

248/176

304/217

322/240

342/256

359/265

366/273

KRE High-Port Ported Dan Barton Alum

N/A

2.25/1.75
4.28

N/A

151/119

224/158

278/186

300/-

317/204

328/-

340/215

352/-

362/224

375/233

387/237

407/290

KRE High-Port Ported Dan Barton Alum

N/A

2.23/1.72
4.31

N/A

159/114

216/168

274/215

321/238

360/254

380/267

398/281

405/285

407/290

KRE High-Port Ported Dan Barton Pushrod Moved Alum

N/A

2.23/1.72
4.31

N/A

166/114

227/168

294/215

357/238

400/254

426/267

432/281

434/285

433/290

KRE High-Port Ported Jim Robertson - SDTemp Alum

N/A

2.20/1.70
4.21
No Pipe

N/A

82/66

152/126

222/168

297/201

350/242

368/257

374/264

374/267

378/271

382/-

KRE High-Port Ported Jim Robertson Alum

N/A

2.20/1.70

N/A

92/74

166/128

228/176

304/217

355/244

388/262

400/269

416/278

KRE High-Port Todd Ported Alum

N/A

2.20/1.70

N/A

143/93

213/139

269/177

295/192

315/205

331/217

348/234

361/243

370/247

378/251

KRE High-Port Todd Ported Calvin Hill Alum

N/A

2.20/1.70

N/A

169/90

243/141

295/180

320/199

345/214

370/228

387/239

395/246

394/252

391/260

380/270

KRE High-Port Ported SD Performance I-45 E-45 Alum

N/A

2.25/1.75
4.185
Pipe

78/67

152/125

220/164

282/199

327/231

356/255

375/272

385/286

394/290
@.850

KRE High-Port Ported Anderson Port Development Alum

N/A

2.19/1.725
4.31

N/A

85/-

155/-

222/-

283/-

334/-

367/-

375/-

379/-

383/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

KRE Warp 6 Canted Valve As Cast Ken C Alum

N/A

2.25/1.75

N/A

420/-

450/-

KRE Warp 6 Canted Valve HPP Alum

399/-

2.25/1.75

71/74

160/130

221/170

273/204

316/227

405/248

421/269

434/295

443/308

452/312

KRE Warp 6 Canted Valve HPP Alum

N/A

2.375/1.85

512/385

McCarty Ram Air V Street Ported Jim Robertson / RACE flowed Joe Sherman Alum

N/A

2.15/1.72
4.25
No Pipe

70/63

144/115

206/145

255/178

298/201

327/218

343/231

McCarty Ram Air V Street Ported Jim Robertson Alum

N/A

2.15/1.72
4.50

N/A

71/-

137/-

214/-

281/-

345/-

386/-

395/-

400/-

403/-

McCarty Ram Air V Street Mild CNC Port Alum

N/A

2.19/1.75
4.375

N/A

171/118

233/175

276/200

323/230

359/237

377/249

386/260

393/265

Roland Racing CV-235 Anderson Port Development SF600 Alum

235/-

2.125/-
4.25

N/A

74/-

154/-

230/-

290/-

305/-

328/-

350/-

Roland Racing CV-275 Alum

275/-

2.30/-
4.31

N/A

81/-

164/-

247/-

299/-

331/-

357/-

378/-

392/-

402/-

Roland Racing CV-290 CNC Alum

290/-

2.30/-
4.31

N/A

82/-

170/-

240/-

283/-

315/-

345/-

362/-

378/-

390/-

Roland Racing CV-325 Ported Anderson Port Development I-50 SF600 Alum

325/-

2.30/-
4.40

N/A

75/-

154/-

228/-

291/-

350/-

387/-

411/-

425/-

439/-

450/-

Roland Racing Canted Valve Bowl Blended Alum

290/-

2.25/1.66
4.15
No Pipe

65/92

92/85

173/128

240/159

294/193

345/213

366/234

373/238

384/249

Roland Racing Canted Valve Bowl Blended Alum

290/-

2.25/1.66
4.15
2.25" Pipe

65/92

92/85

173/128

240/159

294/208

345/232

366/246

373/262

384/270

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Roland Racing CV-1 Minor Intake Mild Exhaust Work Flowtech - Steven Magnotti SF110 Alum

N/A

2.25/1.72
4.25
No Pipe

N/A

85/65

154/121

227/168

277/198

297/211

310/218

330/229

343/236

363/242

374/247

382/-

Roland Racing CV-1 Minor Intake More Exhaust Work Flowtech - Steven Magnotti SF110 Alum

N/A

2.25/1.72
4.25
No Pipe

N/A

85/62

154/122

227/170

277/205

297/219

310/228

330/238

343/246

363/253

374/259

382/270

Roland Racing CV-1 Minor Intake More Exhaust Work Flowtech - Steven Magnotti SF110 Alum

N/A

2.25/1.72
4.25
2 1/8" Pipe

N/A

85/-

154/-

227/-

277/-

297/-

310/247

330/-

343/-

363/-

374/-

382/294

Roland Racing CV-1 Alum

N/A

2.25/1.73

N/A

71/56

148/114

230/150

294/175

331/196

360/210

378/220

389/232

400/233

414/244

Roland Racing CV-1 HRM Alum

285/-

2.30/1.71
4.175
2" Pipe

N/A

72/61

145/114

220/142

273/166

303/186

330/202

349/211

358/220

373/230

385/244

Roland Racing CV-1 HRM Alum

285/-

2.30/1.71
4.385
2" Pipe

N/A

71/56

148/114

230/150

294/175

331/193

360/210

378/220

389/232

400/233

414/244

High Performance Injuns SpeedMaster SF600 Alum

215/175

2.11/1.66
4.15
Pipe

76/72

147/124

213/156

258/177

269/195

289/202

CV-1 Ported Anderson Port Development Alum

N/A

2.125/-
4.155

N/A

76/-

142/-

231/-

297/-

314/-

329/-

342/-

360/-

375/-

380/-

398/-

410/-

CV-290 Ported Anderson Port Development Alum

291.4/-

2.30/-

N/A

73/-

160/-

230/-

296/-

353/-

383/-

413/-

428/-

CV-331 Ported Anderson Port Development SF1020 Alum

331/-

2.30/-

N/A

82/69

167/122

232/161

302/197

365/227

415/248

430/-

442/264

453/272

453/281

456/-

459/-

CV-345 Ported Anderson Port Development Alum

345/-

N/A

164/-

238/-

316/-

381/-

422/-

450/-

458/-

464/-

472/-

CV-360 Ported Anderson Port Development I-55 Alum

360/-

2.35/-
4.375

N/A

79/-

161/-

239/-

309/-

364/-

418/-

429/-

448/-

461/-

478/-

489/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

CV-1 Ported Darin Morgan SF600 Alum

N/A

2.30/-

N/A

143/-

217/-

288/-

337/-

390/-

417/-

428/-

435/-

CV-1 Ported John Marcella I-50 E-50 SF600 Alum

N/A

2.31/1.75
4.375

N/A

77/56

153/104

230/147

311/198

370/225

412/243

435/263

423/278

428/286

CV-1 Ported Calvin Hill Alum

305/-

2.30/-

N/A

99/-

177/-

237/-

281/-

333/-

360/-

411/-

CV-1 Ported Calvin Hill Alum

310/-

2.30/-

N/A

154/-

250/-

310/-

350/-

376/-

399/-

416/-

428/-

440/-

CV-1 Fusion Ported Calvin Hill SF1020 Alum

N/A

2.30/1.75
4.375
2.25" Pipe

N/A

65/47

132/93

213/141

290/184

347/225

401/258

432/281

425/296

CV-1 Fusion Mike Luke Ported Calvin Hill I-45 E-45 Alum

N/A

2.30/1.73

79/56

157/107

230/152

290/187

318/204

341/222

367/235

381/246

396/253

407/257

425/268

430/272

CV-1 Quest Ported Calvin Hill I-45 E-45 SF1020 Alum

N/A

2.30/1.73

N/A

76/47

152/93

227/141

298/184

340/225

373/258

399/281

417/296

430/-

CV-1 Ported Race Shop Alum

N/A

2.30/1.73
4.25

N/A

157/127

227/150

292/186

345/205

376/262

435/278

462/280

CV-1_1 Out of Box Alum

270/-

2.15/1.725
4.15

N/A

79/66

156/125

224/153

273/191

324/225

356/244

355/256

355/260

356/267

358/269

CV-1_1 Ported Alum

290/-

2.19/-
4.35

N/A

84/-

155/-

216/-

290/-

355/-

391/-

417/-

434/-

437/-

CV-2 Billet Alum

N/A

2.375/-
4.375

N/A

89/-

170/-

258/-

331/-

400/-

442/-

465/-

479/-

486/-

498/-

514/-
@1.05

Wenzler Series II Alum

N/A

2.11/1.77

60-90

68/66

140/119

207/158

257/193

274/216

288/224

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

.600

.650

.700

.800

.900

1.000

1.100

Average

Wenzler Series II 180 Flowtech - Steven Magnotti SF110 Alum

N/A

52/38

124/91

178/137

217/175

240/180

253/180

265/-

Wenzler Series II Ported Flowtech - Steven Magnotti 30 Deg Back Cut SF110 Alum

N/A

-/1.77

N/A

-/66

-/119

-/158

-/193

-/207

-/216

-/222

-/225

-/227

Wenzler Series II KRE Ported Alum

N/A

2.15/1.77

N/A

330/260

Wenzler Series II Ported Alum

240/-

2.11/-

N/A

342/-

Wenzler High Port KRE Ported Alum

N/A

2.11/1.65

N/A

345/265

Wenzler Super Chief Alum

N/A

2.25/1.80

N/A

320/-

Wenzler Super Chief Ported JC Culpepper - VJ BW Meaux Racing Alum

N/A

2.35/1.78
4.50
No Pipe

N/A

133/125

205/192

272/250

340/291

394/317

427/329

425/336

432/340

Wenzler Super Chief Ported Ondo Performance Alum

N/A

2.3/1.81
-
Pipe

N/A

103/81

178/139

238/207

290/255

339/287

380/301

406/328

428/343

433/352

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

GM 3800 TEP

160/60

1.80/1.52
3.800

N/A

112/102

155/134

176/145

187/149

GM 3800 TEP Ported

N/A

1.80/1.52
3.800

N/A

125/111

167/137

195/149

211/182

GM 3800 TEP Ported

N/A

1.80/1.57
3.800

N/A

127/110

167/159

193/186

207/194

GM 3800 Abbott Racing SF600

N/A

1.80/1.52

N/A

55/45

114/98

156/132

177/145

185/148

189/153

GM 3800 Ported Abbott Racing Stage 3 SF600

N/A

1.84/1.55

N/A

62/52

128/108

186/155

213/167

226/173

232/178

GM 3800 L67 Stock

N/A

1.80/1.52

N/A

58/47

118/102

162/134

184/155

193/160

194/161

GM 3800 L67 Ported

N/A

67/54

134/112

185/154

214/183

231/196

238/202

241/206

GM 3800 L36 L67 L72 Ported Super Six Motorsports Stage 2

N/A

1.80/1.52

N/A

228/194

GM 3800 L36 L67 L72 Ported Super Six Motorsports Stage 3

N/A

1.84/1.60

N/A

240/202

GM 3800 L36 L67 Ported Intense Stage II

N/A

1.80/1.52
-
1 3/4 Pipe

N/A

64/55

131/103

177/164

202/183

211/193

214/198

GM 3800 L36 L67 Ported Intense Stage III

N/A

1.90/1.57
-
1 3/4 Pipe

69/60

127/117

175/172

208/199

224/212

235/222

GM 3800 Ported Valako Race Heads

N/A

1.88/-

N/A

124/-

169/-

202/-

227/-

248/-

267/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

GM 3800 ZZ Performance

N/A

1.80/1.52
-
No Pipe

N/A

114/103

157/130

181/144

191/151

197/152

GM 3800 ZZ Performance

N/A

1.80/1.52
-
Pipe

N/A

114/109

157/144

181/162

191/168

197/171

ZZ Performance

N/A

1.88/1.55
-
No Pipe

N/A

127/119

175/141

200/152

206/157

207/160

ZZ Performance Seats Blended

N/A

1.88/1.55
-
Pipe

N/A

132/128

179/168

210/193

217/200

217/211

ZZ Performance Ported

N/A

1.97/1.55
-
No Pipe

N/A

130/127

187/159

224/182

242/187

254/190

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

2.0l 914

N/A

42mm/ 36mm
-
No Pipe

N/A

65/40

130/55

145/65

165/67

180/-

2.0l 914 Valve Guides moved Richard

N/A

50/42

N/A

60/54

84/77

110/95

131/111

152/122

166/130

181/136

194/141

209/144

216/145

221/146

2.2T/911T Snowman

N/A

46mm/ 42mm

N/A

60/52

121/99

174/129

192/142

200/149

200/-

2.2E 911 Thundercraft Racing

N/A

82/54

112/77

135/99

165/117

187/133

202/143

205/150

207/153

207/155

2.4S

N/A

46mm/-

N/A

65/-

120/-

169/-

196/-

208/-

930 3.3

N/A

48.96mm/ 41.5mm

N/A

76/56

139/107

171/126

198/139

217/153

225/155

228/157

229/-

930 3.3 Modified

N/A

48.96mm/ 41.5mm

N/A

77/54

139/104

173/124

202/139

217/151

225/166

239/169

243/-

924 '373 R & R Performance

N/A

1.57/1.295

N/A

52/41

90/72

135/105

150/120

152/126

153/129

924 '373 Street Port R & R Performance

N/A

1.57/1.295

N/A

50/41

91/72

137/107

162/126

172/136

181/142

928 RL

N/A

Stock

N/A

54/49

110/106

160/132

190/161

211/171

216/173

928 Ported RL

N/A

2.08/1.60
4.00

N/A

57/55

126/110

186/145

232/180

270/191

291/210

944/951

N/A

-
100mm

N/A

180/191

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

944/951 Ported Lindsey Racing Level I SF600

N/A

-
100mm

N/A

186/-

944/951 Ported Lindsey Racing Level II SF600

N/A

-
100mm

N/A

232/-

944/951 Ported Lindsey Racing Level III SF600

N/A

1.88/-
100mm

N/A

252/-

944/951 Ported Lindsey Racing Level V SF600

N/A

2.00/-
104mm

N/A

63/-

125/-

180/-

228/-

260/-

270/-

996 Ported McKenzie Cylinder Heads

N/A

39mm/ 34mm

N/A

109/94

162/173

206/193

246/215

283/243

304/267

315/279

320/287

324/296

Xtreme Cylinder Heads 2.5

136/64

47mm/ 40mm

Xtreme Cylinder Heads 3.0

150/66

52mm/ 42.5mm

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

2.5 Ported /Andre' Norrback

N/A

45mm/40mm
100mm
No Pipe

N/A

43/39

89/89

134/113

168/138

192/151

206/163

211/167

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

1800 16v F7P-720/722 Sabre Heads

N/A

30.7mm/ 28.4mm
83mm
No Pipe

N/A

34/33

73/69

114/100

153/126

176/139

186/148

184/152

189/152

191/157

1800 16v F7P-720/722 Ported Sabre Heads

N/A

30.7mm/ 28.4mm
83mm
No Pipe

N/A

36/35

74/75

113/121

151/156

185/178

206/188

220/192

228/192

230/194

1800 16v F7P-720/722 Ported Sabre Heads largerintake seat inserts

N/A

33mm/ 28.4mm
83mm
No Pipe

N/A

38/35

77/75

116/121

153/156

185/178

213/188

234/192

248/192

258/194

1800 16v F7P-760 Sabre Heads

N/A

33.5mm/-
83mm

N/A

36/-

76/-

111/-

141/-

163/-

182/-

194/-

200/-

202/-

1800 16v F7P-760 Ported Sabre Heads

N/A

33.5mm/-
83mm

N/A

38/-

75/-

111/-

146/-

177/-

200/-

215/-

218/-

222/-

Clio Williams Late Model Sabre Heads

N/A

33mm/-
83mm

N/A

37/-

80/-

120/-

159/-

189/-

206/-

215/-

218/-

220/-

Clio Williams Late Model Sabre Heads

N/A

33mm/ 28.4mm
83mm
No Pipe

N/A

38/35

79/73

119/118

159/157

194/178

219/188

234/192

242/194

248/201

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

Average

1.8 K CNC Heads UK

N/A

1.141/1.023
100mm
No Pipe

N/A

30/-

63/48

94/-

122/92

133/-

135/109

139/-

141/112

142/-

142/112

1.8 K Ported CNC Heads UK

N/A

1.141/1.023
100mm
No Pipe

N/A

36/-

76/66

113/-

151/116

180/-

189/136

192/-

195/154

199/-

199/165

1.8 VVC CNC Heads UK

N/A

31.5mm/27.5mm

N/A

34/27

63/58

100/86

137/108

165/121

181/126

187/128

192/130

194/130

196/130

1.8 VVC Ported CNC Heads UK

N/A

31.5mm/27.5mm

N/A

42/35

86/71

125/101

162/124

194/136

219/147

228/156

237/165

238/170

239/172

3.9l Peak Performance Alum

N/A

Stock

N/A

92/72

133/86

143/89

146/90

148/91

144/104

3.9l Ported Peak Performance Alum

N/A

96/80

144/107

177/127

181/134

181/140

3.9l Ported Welded Chambers from Dan Jones Alum

N/A

1.782/1.45

N/A

63/51

128/89

170/116

188/128

190/136

4.0l RL Alum

N/A

Stock

N/A

54/41

104/81

137/97

139/101

142/104

144/104

4.0l Ported RL Alum

N/A

Stock

N/A

57/45

110/93

153/123

187/139

192/145

190/149

4.6l Alum

N/A

1.575/1.35
-
No Pipe

N/A

60/571

105/92

132/104

135/107

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.350

.400

.450

.500

.600

Average

B202 Old 16v

N/A

32mm/ 29mm

N/A

153/160

B202 New 16v

N/A

32mm/ 29mm

N/A

182/165

B212/B234 Long 16v

N/A

34mm/ 31.5mm

N/A

192/170

B212/B234 Short 16v

N/A

34mm/ 31.5mm

N/A

228/170

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

Studebaker 53976 '57 Golden Hawk Cleaned Stock 11secAvanti Iron

N/A

1.656/1.53
3.68
1/2" Radius Plate

N/A

50/51

87/84

120/113

137/123

145/132

-/137

Studebaker 53976 '57 Golden Hawk Ported 11secAvanti E-30 Backcut Iron

N/A

1.872/1.53
3.68
1/2" Radius Plate

N/A

56/51

98/100

136/118

166/129

182/137

189/140

Studebaker 53976 '57 Golden Hawk Ported 11secAvanti 30/45/60/72 cuts Iron

N/A

1.872/1.60
3.68
1/2" Radius Plate

N/A

56/52

100/104

140/139

172/146

189/152

194/155

Studebaker 1557570 Stock Bill Jones Iron

N/A

1.655/1.525
-
No Pipe

N/A

52/42

88/79

120/103

135/122

144/133

145/141

Studebaker 1557570 Stock VJ Bill Jones Iron

N/A

1.655/1.525
-
No Pipe

N/A

55/50

102/89

133/106

148/128

155/139

157/145

Studebaker 1557570 Mild Porting Bill Jones Iron

N/A

1.655/1.525
-
No Pipe

N/A

54/50

103/90

135/115

163/140

174/156

180/163

Studebaker 1557570 Decent Porting Bill Jones intake valve guide moved .045" toward exhaust Iron

N/A

1.85/1.60
-
No Pipe

N/A

58/51

113/104

156/135

193/156

212/165

216/179

Studebaker 1555479 Stock Bill Jones Iron

N/A

1.875/1.625

N/A

69/54

116/99
-
No Pipe

152/130

172/149

189/162

Studebaker Rabid Snail Racing Iron

N/A

1.875/1.5625

N/A

59/54

118/110

163/146

194/156

215/161

216/164

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

Average

EJ20

N/A

36mm/ 32mm

N/A

53/46

117/86

144/103

151/111

EJ20K JDM Version 4 ASF Machine Non-Dogleg SF110

N/A

36mm/ 32mm
-
No Pipe

N/A

30/31

87/69

138/103

179/132

214/152

241/165

245/177

249/185

249/193

251/194

EJ20 Ported MRT Performance

N/A

36mm/ 32mm

N/A

65/56

124/95

155/118

165/126

EJ20 Version 4 1997 Ported Kelford Cams

N/A

1.46/1.32

N/A

46/40

94/97

143/146

187/178

224/197

258/204

278/218

296/223

308/228

319/232

EJ20 '99 Ported Knight Engines

N/A

97/86

194/210

271/230

317/252

332/261

EJ20 AUDM-USDM Small Port Ported Knight Engines 1 OS

N/A

37mm/ 32mm

N/A

101/80

205/169

292/230

323/253

337/263

EJ20 JDM Big Port Ported Knight Engines 1 OS

N/A

37mm/ 32mm

N/A

101/80

205/169

293/230

324/253

339/263

EJ22T

N/A

193/147

EJ25

N/A

1.42/1.24

N/A

-/182

240/-

EJ251 SOHC ASF Machine SF110

N/A

35mm/ 30.5mm
-
No Pipe

N/A

48/-

84/-

143/-

188/-

222/-

239/-

253/-

260/-

264/-

EJ25 SOHC CHR Motorsports LLC Home Made Bench

N/A

35mm/ 30.5mm
-
Radius on Exhaust

N/A

76/58-67

122/102-105

142/145-136

162/184-154

224/204-161

240/209-163

250/212-164

256/216-164

256/216-162

EJ25 SOHC Ported CHR Motorsports LLC Home Made Bench

N/A

-
-
Radius on Exhaust

N/A

78/69-57

123/103-98

163/147-136

201/192-177

234/226-192

247/247-198

256/259-202

264/264-205

266/267-208

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

Average

EJ25 DOHC EJ25D Ported ASF Machine

N/A

36mm/ 32mm
-
No Pipe

N/A

93/74

141/111

183/143

217/159

246/167

257/178

264/185

268/187

275/191

Impreza Gen 6 Sabre Heads SF110

N/A

36mm/ 32mm
-
No Pipe

N/A

42/33-33

87/74-72

133/114-106

184/146-135

227/162-147

252/173-155

266/176-159

273/183-160

278/186-160

276/188-160

Impreza Gen 6 Ported Exhaust Sabre Heads SF110

N/A

36mm/ 32mm
-
No Pipe

N/A

42/37-36

87/84-79

133/131-123

184/163-160

227/188-177

252/196-187

266/202-194

273/207-198

278/210-199

276/211-199

Impreza CNC Heads UK

N/A

36mm/ 32mm
100mm
Pipe

N/A

43/-

90/82

136/-

187/149

227/-

259/170

272/-

281/175

285/-

285/174

Impreza Ported CNC Heads UK

N/A

36mm/ 32mm
100mm
Pipe

N/A

45/-

93/85

141/-

187/169

228/-

262/208

288/-

298/224

306/-

309/228

V7 JDM Ported +1mm Valve

N/A

99/96

184/179

257/204

283/217

299/237

WRX

N/A

81/79

177/153

234/181

238/186

234/188

WRX Ported Cobb Tuning

N/A

300/250

WRX Ported Kelford Cams

N/A

1.45/1.30

N/A

92/84

142/127

186/163

227/185

260/192

280/199

293/204

305/207

308/210

WRX Ported Bullet Cylinder Heads

N/A

98/92

196/163

274/206

295/219

300/223

WRX STi B25

N/A

35mm/ 30mm

N/A

81/84-78

166/166-155

231/188-174

248/195-178

WRX STi Ported PNP Heads

N/A

35mm/ 30mm

N/A

276/212

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

Average

WRX STi '04 DOHC EJ257 Non-Dogleg Exhaust Ported ASF Machine 1mmOS valves

N/A

37mm/ 33mm
-
No Pipe

N/A

49/44

103/93

150/133

200/183

223/203

256/217

268/219

274/221

286/226

298/231

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

7mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

Average

EG33 MORGO Systems

N/A

36mm/ 32mm
-
Pipe

N/A

67/65

133/122

194/166

212/176

219/181

221/185

221/187

221/189

221/190

222/193

EG33 Ported MORGO Systems

N/A

36mm/ 32mm
-
Pipe

N/A

70/71

141/141

206/185

231/195

248/201

260/206

270/208

275/209

280/212

284/213

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

22 R/RE

N/A

44.5mm/ 36.5mm

N/A

130/-

22 R/RE Stage 2 Ported

N/A

45mm/ 37mm

N/A

160/-

22 R/RE Stage 3 Ported

N/A

45mm/ 37mm

N/A

200/-

22 R/RE Stage 5 Ported

N/A

45mm/ 37mm

N/A

250/-

2ZZ-GE Sabre Heads SF110

N/A

34mm/ 29mm
82mm
No Pipe

N/A

81/67

121/101

158/126

187/139

209/153

227/158

237/164

245/167

252/173

2ZZ-GE Ported Sabre Heads SF110

N/A

34mm/ 29mm
82mm
No Pipe

N/A

81/70

121/103

157/130

188/149

209/158

228/166

242/173

254/185

263/189

2ZZ-GE Ported

N/A

99/75

138/113

174/135

198/151

216/164

230/170

239/175

247/180

254/182

3S-GTE Knight Engines

N/A

33.5mm/29mm

N/A

92/75

166/133

219/163

256/177

265/189

265/199

3S-GTE Ported Knight Engines

N/A

34.5mm/30mm

N/A

94/79

177/145

242/189

278/215

298/235

309/247

3S-GTE GEN3 Ported Kelford Cams

N/A

1.338/1.181

N/A

88/72

139/114

177/149

212/184

239/197

260/204

278/211

294/218

307/223

3TC

N/A

40mm/ 35mm

N/A

133/97

140/110

145/120

147/135

3TC CNC M2 Race Systems

94/-

41mm/ 36mm
3.575

175/115

188/127

190/141

190/148

190/155

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

3TC Billet 6061 T-6 Alum HeadWay Performance

94/-

44mm/ 39mm

220/140

3VZ-E Louthan Ported

N/A

171/136

187/144

4AGE Early MR2 1.6 16v Sabre Heads

N/A

30.5mm /25.6mm
-
No Pipe

N/A

74/59

111/91

147/107

174/113

183/115

187/116

190/117

190/118

4AGE Early MR2 1.6 16v Ported Sabre Heads

N/A

30.5mm /25.6mm
-
No Pipe

N/A

74/63

113/98

152/128

182/148

201/153

211/154

219/155

223/155

225/-

4AGE 16v Ported Kelford Cams

N/A

1.26/1.07

N/A

81/79

124/126

158/147

184/158

199/163

212/165

221/166

227/168

4AGE 20v Kelford Cams

N/A

26.5mm /26mm

N/A

101/61

146/89

172/111

193/125

202/133

210/138

215/142

220/146

4AGE 20v Kelford Cams 1mm OS

N/A

27.5mm/ 27mm

N/A

104/61

149/90

178/117

199/132

217/141

231/147

241/150

247/154

AE101 4AGE 1.6 20v Sabre Heads

N/A

26.5mm /26mm
-
No Pipe

N/A

91/62

135/88

161/106

176/113

195/118

202/121

205/124

205/125

AE101 4AGE 1.6 20v Ported Sabre Heads

N/A

26.5mm /26mm
-
No Pipe

N/A

95/67

140/97

174/125

195/140

210/150

219/156

227/159

232/160

235/162

GT4 ST185 Ported Sabre Heads

N/A

33.4mm /29mm
-
No Pipe

N/A

80/72

124/109

164/133

195/147

218/157

235/164

244/168

250/173

GT4 ST185 Ported Sabre Heads OS Exhaust

N/A

33.4mm /29.8mm
-
No Pipe

N/A

80/76

124/113

164/146

195/164

218/179

235/190

244/192

250/198

5S-FE

N/A

32mm/ 27mm
-
No Pipe

N/A

75/67

143/108

152/125

152/127

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

5S-FE Light Ported

N/A

33mm/ 28mm
-
No Pipe

N/A

84/67

157/114

181/138

183/146

5M Bruce Hilsabeck

N/A

32mm/ 27mm

N/A

55/42

115/70

145/107

158/126

167/133

5M Bruce Hilsabeck Ported

N/A

67/55

121/107

162/133

193/149

200/156

7MG '89 iNvis SF600

N/A

32mm/ 27.5mm

N/A

81/65

118/84

149/106

167/119

185/121

191/126

194/129

7MG '89 T72mk3

N/A

32mm/ 27.5mm

N/A

67/62

139/113

180/131

190/138

190/140

7MG '89 T72mk3 Ported

N/A

32mm/ 27.5mm

N/A

78/78

166/132

214/156

229/173

235/176

7M-GE Allan SF600

N/A

32mm/ 27.5mm

N/A

77/60

114/93

141/113

163/123

176/128

180/131

180/133

7M-GE Ported Allan Street SF600

N/A

32mm/ 27.5mm

N/A

80/70

122/103

160/121

188/131

202/139

211/145

216/149

220/155

7M-GE Ported Allan Race

N/A

33.6mm/29mm

N/A

81/70

122/108

153/135

181/150

201/164

212/168

222/172

232/174

239/188

7MGTE CNC

N/A

32mm/ 27.5mm

N/A

113/80

187/142

216/172

231/184

242/191

7MGTE 24v CCH

N/A

32mm/ 27.5mm

N/A

208/149

7MGTE 24v Ported CCH

N/A

32mm/ 27.5mm

N/A

230/186

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

2JZ GT Stu Hagen

N/A

33.6/29mm

N/A

80/74

154/120

195/140

207/152

215/154

2JZ GT

N/A

33.6/29mm

N/A

82/64

130/97

163/126

191/135

211/142

220/144

224/147

228/150

229/152

232/152

232/151

2JZ GT Ported

N/A

33.6/29mm

N/A

83/65

125/103

163/136

191/162

217/178

235/185

243/194

250/201

251/204

256/205

266/206

2JZ Ported SF300

N/A

33.6/29mm

N/A

97/70

136/106

179/132

215/151

242/167

259/173

265/179

268/182

2JZ '93-98 M2 Race Systems

N/A

33.6/29mm

N/A

168/121

190/130

206/137

217/139

226/139

230/140

232/140

2JZ '93-98 CNC M2 Race Systems

136/-

33.6mm/ 29mm

N/A

85/81

127/116

168/145

203/162

231/170

255/174

271/177

284/179

289/180

2JZ Ported Knight Engines 1 OS

N/A

34.6/30mm

N/A

109/99

161/179

227/212

282/222

300/230

302/234

1UZ-FE

N/A

33.5mm/28mm

N/A

85/61

129/96

161/111

189/124

202/137

224/145

1UZ-FE

N/A

33.5mm/28mm

N/A

204/125

221/133

1UZ-FE

N/A

33.5mm/28mm

N/A

163/120

238/147

250/149

1UZ-FE Ported

N/A

174/125

261/167

277/174

1UZ-FE Ported Kelford Cams

N/A

1.41/1.25

N/A

104/88

147/132

189/157

228/176

251/195

266/205

275/211

281/217

283/220

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

Average

Billet 1UZ-FE paul

N/A

36mm/32mm

N/A

300/250

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

7mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

Average

21 R MORGO Systems

N/A

Stock

N/A

41/-

81/-

118/-

133/-

143/-

147/-

144/-

143/-

144/-

145/-

21 R Ported MORGO Systems

N/A

Stock

N/A

44/-

85/-

125/-

144/-

160/-

173/-

177/-

175/-

169/-

168/-

2E 1.3l 12V MORGO Systems

N/A

Stock
-
Pipe

N/A

55/53

98/89

126/105

134/110

139/113

143/114

146/113

146/114

147/114

147/116

2NZ-FE 1.3l MORGO Systems

N/A

Stock
-
Pipe

N/A

65/49

118/91

153/111

166/114

175/118

181/122

186/122

190/124

193/126

2T-G Ported MORGO Systems

N/A

44mm/ 37.5mm

N/A

49/-

93/-

139/-

159/-

180/-

196/-

207/-

216/-

222/-

226/-

3S-GE (BEAMS) Ported MORGO Systems Alum

N/A

33.5mm/29mm

N/A

58/-

122/-

173/-

195-

214/-

231/-

246/-

257/-

264/-

267/-

5M-GE

N/A

178/-

5M-GE Ported

N/A

252/-

4A-F MORGO Systems

N/A

30mm/ 24.5
-
Pipe

N/A

56/50

109/90

136/105

139/107

140/108

140/109

139/110

138/111

138/110

4A-F Ported MORGO Systems

N/A

30mm/ 24.5
-
Pipe

N/A

59/53

112/104

151/122

162/127

167/130

169/132

170/133

171/134

171/135

172/-

4AGE 20v Blacktop Ported /Andre' Norrback

N/A

26.5mm/-

N/A

73/-

139/-

183/-

212/-

231/-

240/-

4AGE 20v Silvertop Ported /Andre' Norrback

N/A

26.5mm/-

N/A

78/-

144/-

183/-

206/-

220/-

229/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

7mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

Average

4AGE 2009 Silvertop Ported /Andre' Norrback

N/A

26.5mm/-

N/A

78/-

146/-

186/-

209/-

226/-

236/-

4AGE 20v Silvertop MORGO Systems

N/A

26.5mm /26mm
-
Pipe

N/A

80/56

144/104

182/125

195/131

201/134

206/136

208/137

207/138

-/139

4AGE 20v Silvertop Ported MORGO Systems

N/A

26.5mm /26mm
-
Pipe

N/A

83/56

159/116

198/146

209/152

218/155

225/157

231/159

234/159

-/161

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.250

.300

.350

.400

.450

.47244

.500

.600

.700

Average

B20

N/A

44mm/35mm

N/A

50/33

109/70

142/79

161/80

161/82

405 iadr

N/A

44mm/35mm
94mm

N/A

50/39

101/78

145/100

159/107

168/115

405 dl24gt

N/A

44mm/35mm

N/A

51/41

108/80

149/102

168/111

171/114

175/116

405 dl24gt Ported

N/A

44mm/35mm

N/A

63/46

113/86

157/108

183/117

193/121

199/123

405 Ported Pacman

N/A

44mm/35mm

N/A

219/-

405 Ported Pacman

N/A

46mm/38mm

N/A

249/-

405 Ported Pacman

N/A

48mm/40mm

N/A

259/-

530

N/A

44mm/35mm

N/A

-/115

530 Ported

N/A

44mm/40mm

N/A

165/135

530 Ported

N/A

44mm/38mm

N/A

161/141

531

N/A

44mm/35mm

N/A

86/72

140/136

180/156

190/160

-/162

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.250

.300

.350

.400

.450

.47244

.500

.600

.700

Average

T5 CNC Heads UK

N/A

1.179/1.0195
100mm
No Pipe

N/A

74/60

148/144

172/-

184/176

192/-

199/174

201/-

199/175

T5 Ported CNC Heads UK

N/A

1.22/1.062
100mm
No Pipe

N/A

71/71

145/163

179/-

200/209

215/-

225/215

229/-

232/219

16V

N/A

34.5mm/ 31.5mm
-
No Pipe

87/81

167/159

220/194

232/196

236/199

16V BOPORT Racing Heads

N/A

34.5mm/ 31.5mm
3.81

N/A

85/-

164/-

198/-

219/-

226/-

230/-

232/-

234/-

235/-

B234 16v Boport

N/A

34.5mm/ 31.5mm
3.810

N/A

85/-

164/-

198/-

219/-

226/-

230/-

232/-

234/-

235/-

20V S60R

N/A

35mm/31mm

N/A

130/125

181/159

185/171

20V S60R Ported

N/A

35mm/31mm

N/A

150/140

197/181

205/187

20V 2.4l S70 CCH

N/A

Stock

N/A

196/168

20V 2.4l S70 Ported CCH

N/A

Stock

N/A

220/210

ARCA 16V

N/A

-
-
No Pipe

N/A

62/51

123/100

176/130

222/171

257/200

278/218

292/228

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

11mm

12mm

13mm

14mm

16mm

18mm

Average

B20 Jens Gustavssons Ported

N/A

44mm/ 39.4mm

N/A

52/42

97/100

134/123

164/133

186/137

190/137

196/135

198/-

B20 Jens Gustavssons Ported Motor Puls

N/A

48mm/ 38.5mm

N/A

250/160

B20 Ported

N/A

45mm/ 38mm

N/A

37/-

82/-

126/-

162/-

176/-

177/-

179/-

180/-

B20 Ported

N/A

46mm/ 38.5mm

N/A

37/-

93/-

133/-

165/-

193/-

212/-

213/-

215/-

B234F 16v Ported qwk Alum

N/A

37mm/-

N/A

71/-

138/-

198/-

244/-

274/-

298/-

316/-

318/-

B234F 16v MORGO Systems

N/A

34.5/-

N/A

71/-

142/-

194/-

217/-

230/-

233/-

235/-

238/-

B234F 16v Ported MORGO Systems

N/A

-
-
Pipe

N/A

74/71

149/146

224/209

260/246

272/260

273/263

277/266

281/267

16v Ported /Andre' Norrback

N/A

34.5mm/ 31.5mm
98mm
No Pipe

N/A

70/65

142/133

193/185

232/202

258/213

272/220

277/224

280/224

16v Ported /Andre' Norrback

N/A

34.5mm/ 31.5mm
98mm
No Pipe

N/A

70/67

139/140

205/190

250/214

271/219

283/222

287/226

290/228

16v Ported /Andre' Norrback

N/A

36.0mm/ 31.5mm
98mm
No Pipe

N/A

75/65

149/133

217/185

264/202

286/213

301/220

304/224

306/226

16v Ported /Andre' Norrback

N/A

39mm/-

N/A

74/-

146/-

213/-

265/-

306/-

332/-

348/-

356/-

362/-

16v Ported

N/A

37.0mm/-

N/A

71/-

198/-

244/-

274/-

298/-

316/-

318/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

11mm

12mm

13mm

14mm

16mm

18mm

Average

B234 16v Ported /Andre' Norrback

N/A

39mm/ 33mm
98mm
No Pipe

N/A

78/69

146/144

215/196

271/226

308/244

318/250

324/252

530 Ported /Andre' Norrback Epoxy

N/A

46mm/38mm
98mm
No Pipe

N/A

46/40

87/68

127/90

162/106

191/120

207/126

215/128

220/130

531 Ported /Andre' Norrback Epoxy

N/A

46mm/38mm
98mm
No Pipe

N/A

47/35

91/72

133/98

168/114

195/121

215/124

222/126

226/127

531 Ported /Andre' Norrback

N/A

44mm/35mm
98mm
No Pipe

N/A

47/38

91/70

132/106

166/123

192/135

204/143

209/146

210/146

531 Ported /Andre' Norrback

N/A

44mm/35mm
98mm
No Pipe

N/A

42/38

84/61

121/91

155/110

183/123

200/133

212/138

214/140

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

VW Type 1

N/A

43/-

77/-

90/-

100/-

101/-

VW Type 1 DRD Racing Heads L3

N/A

45/22

81/60

107/79

122/94

132/96

VW 043 Type 1 DRD Racing Heads L3

N/A

35.5mm/ 32mm

VW 043 Type 1 DRD Racing Heads L5

N/A

42mm/ 37.5mm

N/A

175/-

VW 043 Type 1 DRD Racing Heads L6

N/A

42mm/ 37.5mm

N/A

185/-

VW 043 Type 1 DRD Racing Heads L7

N/A

42mm/ 37.5mm

N/A

200/-

VW 043 Type 1 DRD Racing Heads L8

N/A

-/38mm

N/A

220/-

VW 044 Type 1 DRD Racing Heads L5

60/-

40mm/ 35.5mm

N/A

57/49

97/89

130/112

154/126

168/127

172/127

174/127

VW 044 Type 1 DRD Racing Heads L6

63/-

42mm/ 37.5mm

N/A

63/49

106/89

136/112

163/130

183/139

195/140

201/140

204/141

VW 044 Type 1 DRD Racing Heads L7

73/-

44mm/ 37.5mm

N/A

56/49

100/89

141/112

172/130

198/139

206/140

211/140

215/141

VW 044 Type 1 DRD Racing Heads L8

N/A

48mm/ 38mm

N/A

62/49

113/89

155/112

190/130

216/139

225/140

234/140

247/141

VW 044 Volkwagen Performance Porting

N/A

44mm/ 37mm

N/A

230/180

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

VW 044 Volkwagen Performance Porting

N/A

48mm/ 37mm

N/A

255/180

VW 044 Street Ported

N/A

42mm/ 37.5mm
94mm
1 5/8" Pipe

56.8

78/70

102/91

122/104

134/115

144/126

154/133

164/138

170/141

176/146

181/151

187/166

VW 044 Race Ported

N/A

44mm/ 37.5mm
94mm
1 3/4" Pipe

53.2

80/70

102/89

121/102

137/115

150/126

163/134

174/142

184/146

193/150

201/153

207/156

1.6

N/A

68/64

129/118

160/148

170/154

174/157

16V

N/A

32mm/28.1mm

N/A

60/55

128/114

163/123

177/130

16V Ported

N/A

92/72

163/146

216/180

240/191

1.8 8V CNC Heads UK

N/A

1.5735/ 1.308
100mm
No Pipe

N/A

50/38

75/-

96/72

114/-

124/89

132/-

134/99

135/-

136/102

1.8 8V Ported CNC Heads UK

N/A

1.5375/ 1.3085
100mm
No Pipe

N/A

52/39

78/-

102/90

122/-

139/112

151/-

164/123

173/-

181/129

1.8 8V Ported CNC Heads UK

N/A

1.6515/ 1.3785
100mm
No Pipe

N/A

54/49

81/-

108/86

132/-

157/111

175/-

187/126

193/-

198/133

1.8 16V CNC Heads UK

N/A

31.5mm/ 27.5mm

N/A

71/53

106/-

143/119

171/-

186/143

192/-

194/150

196/-

196/153

1.8 16V Ported CNC Heads UK

N/A

31.5mm/ 27.5mm

N/A

82/62

126/-

171/120

201/-

224/153

230/-

233/165

240/-

238/174

1.8 16V

N/A

32mm/28.1mm

N/A

172/123

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

1.8 16V

N/A

80/-

121/-

154/-

195/-

203/-

1.8 16V soch

N/A

32mm/28.1mm

N/A

77/58

107/96

132/121

157/125

172/128

175/129

177/129

1.8 16V TT SF300

N/A

32mm/28.1mm

N/A

76/67

108/96

138/115

161/121

175/124

181/125

183/126

1.8 16V TT Street Port SF300

N/A

32mm/28.1mm

N/A

76/67

111/99

146/125

175/139

191/152

199/160

209/166

1.8 20V

N/A

26.9mm/ 29.9mm

N/A

177/171

1.8 20V

N/A

26.9mm/ 29.9mm

N/A

172/123

1.8 20V Big Port

N/A

212/195

1.8 20V Big Port

N/A

210/175

1.8T 20V AEB Large Port Bill Jones

N/A

1.06/1.18

N/A

96/78

164/125

199/157

218/164

219/171

1.8T 20V AEB Large Port Ported Bill Jones

N/A

1.06/1.18

N/A

102/94

180/155

210/184

219/191

228/198

1.8T 20V AEB Large Port Ported Bill Jones

N/A

1.099/1.215

N/A

108/93

184/139

211/171

216/179

220/184

1.8T 20V CNC HEADS UK

N/A

26.9mm/ 29.9mm
100mm
No Pipe

N/A

102/89

142/-

178/134

205/-

222/161

231/-

239/176

245/182

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

1.8T 20V Ported CNC HEADS UK

N/A

26.9mm/ 29.9mm
100mm
No Pipe

N/A

96/83

139/-

179/146

208/-

228/193

242/-

250/223

256/-

255/250

2.0l 16V soch

N/A

32mm/28.1mm

N/A

60/55

91/93

128/114

149/118

165/123

170/128

177/130

2.0l 16V Joshua SF300

N/A

32mm/28.1mm

N/A

68/61

101/91

131/116

143/129

163/136

168/138

171/141

2.0l 16V CCH

N/A

32mm/28.1mm

N/A

195/150

2.0l 16V Ported CCH

N/A

32mm/28.1mm

N/A

231/178

2.0 8V '94 German X-Flow

N/A

Stock

N/A

52/38

100/72

130/88

149/94

-/97

2.0 8V X-Flow

N/A

54/39

102/75

129/90

136/96

137/97

2.0 8V X-Flow Ported

N/A

174/-

8V X-Flow Ported

N/A

Stock

N/A

183/-

188/-

8V Early Casting CCH

N/A

Stock

N/A

133/101

8V Early Casting Ported CCH

N/A

Stock

N/A

161/131

8V Cross Flow CCH

N/A

Stock

N/A

139/107

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

8V Cross Flow Ported CCH

N/A

Stock

N/A

165/138

12V VR6 CCH

N/A

39mm/ 34mm

N/A

157/145

12V VR6 Ported CCH

N/A

39mm/ 34mm

N/A

186/168

12V

N/A

39mm/ 34mm

N/A

148/137

R32 CNC Heads UK

N/A

1.303/ 1.188
100mm
Pipe

N/A

83/79

118/-

152/132

184/-

211/152

231/-

247/162

252/-

255/169

R32 Ported CNC Heads UK

N/A

1.303/ 1.188
100mm
Pipe

N/A

78/91

117/-

155/164

190/-

219/195

243/-

257/210

266/-

270/216

Cabriolets

N/A

57/49

97/90

130/113

139/131

148/141

Type 4 - 914 Mild Porting

N/A

48mm/-

N/A

209/-

Type 4 - LE160 Raby's Aircooled Technology

N/A

40mm/ 34mm

61/51

87/67

110/81

123/93

132/99

140/103

147/105

152/107

157/108

160/109

Type 4 - LE180 914 2.0 Raby's Aircooled Technology

N/A

42mm/ 36mm

58/52

84/72

112/91

136/107

155/119

168/126

171/132

176/135

181/138

186/140

190/141

Type 4 - LE190 Raby's Aircooled Technology

N/A

44mm/ 36mm

60/51

87/70

116/88

142/102

160/114

171/123

182/130

188/135

192/140

196/142

Type 4 - LE200 Raby's Aircooled Technology

N/A

44mm/ 36mm

62/51

88/70

116/88

143/102

164/114

180/123

189/130

196/135

200/140

205/142

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.700

Average

Type 4 - MassIVe Raby's Aircooled Technology

N/A

155/122

247/190

280/222

Arao Engineering 16V

N/A

35.5mm/ 32mm

N/A

105/79

189/125

232/176

263/204

271/217

265/225

The following 12V VR6 Heads are different than any other heads that I have listed.
They have been flow with the short (about 4 inches) 90 degree manifold during the tests.
The intake and exhaust ports are basically the same way---3 short and 3 long ports. The short port is listed first.

12V VR6 Stock Short Bill Jones

N/A

39mm/ 34mm

N/A

56/43

104/84

130/109

150/114

157/115

12V VR6 Stock Long Bill Jones

N/A

39mm/ 34mm

N/A

56/45

106/89

130/117

152/131

159/134

12V VR6 Ported Short Bill Jones

N/A

39mm/ 34mm

N/A

55/47

108/87

130/111

149/125

155/129

12V VR6 Ported Long Bill Jones

N/A

39mm/ 34mm

N/A

55/47

106/89

130/113

154/128

162/134

Did valve job to max size of stock valves, backcut int 33x27 & exh 37x29---ported the manifold from 1.400" out to 1.500".

12V VR6 Ported Short Bill Jones

N/A

39mm/ 34mm

N/A

53/47

102/86

143/109

161/119

168/127

12V VR6 Ported Long Bill Jones

N/A

39mm/ 34mm

N/A

52/52

101/94

145/115

165/128

173/138

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

16mm

18mm

Average

2.0l 8v gti Ported /Andre' Norrback

N/A

40mm/33mm
85mm

N/A

45/-

81/-

114/-

145/-

164/-

176/-

177/-

Golf Ported /Andre' Norrback

N/A

40mm/34mm
85mm

N/A

42/-

75/-

103/-

128/-

148/-

165/-

178/-

182/-

Golf 8v MORGO Systems

N/A

40mm/33mm

N/A

39/33

68/63

100/82

114/93

117/95

118/97

119/98

120/99

182/-

Golf 8v Ported MORGO Systems

N/A

40mm/33mm

N/A

44/32

79/70

114/91

140/111

148/117

153/123

158/127

160/130

160/132

160/-

182/-

1.9l TDI VE NPS

N/A

36mm/31.4mm
-
No Pipe

N/A

33/28

70/57

97/83

109/99

110/105

112/104

2.0l TDI NPS

N/A

29mm/25.5mm
-
No Pipe

N/A

57/58

97/88

118/99

117/103

120/105

2.0l TDI Ported NPS

N/A

29mm/25.5mm
-
No Pipe

N/A

61/54

111/94

130/111

141/118

146/122

148/123

Type 4 - Ported /Andre' Norrback

N/A

53mm/40mm
103mm
No Pipe

N/A

57/37

110/75

161/105

205/123

241/134

267/143

287/148

292/150

Type 4 - 2 Ported /Andre' Norrback

N/A

52mm/38mm
103mm
No Pipe

N/A

48/44

94/82

147/114

195/133

234/145

260/151

270/154

274/155

276/155

Type 4 - 3 Ported /Andre' Norrback

N/A

53mm/38mm
103mm
No Pipe

N/A

52/44

101/82

152/114

199/133

239/145

263/151

280/154

283/155

284/155

Type 4 - 4 Ported /Andre' Norrback

N/A

53mm/40mm
103mm
No Pipe

N/A

57/40

105/77

157/111

202/130

237/142

267/149

287/154

292/158

296/159

Type 4 - 5 Ported /Andre' Norrback

N/A

53mm/40mm
103mm
No Pipe

N/A

59/40

113/77

164/111

209/130

245/142

273/149

290/154

296/158

300/159

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

9mm

10mm

11mm

12mm

13mm

14mm

16mm

18mm

Average

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.560

.600

.700

Average

Stock Thunderstorm NPS

N/A

1.81/1.575
88 mm
No Pipe

57/53

121/101

173/131

203/150

207/161

209/161

Thunderstorm Ported NPS

N/A

1.81/1.575
88 mm
No Pipe

N/A

63/50

131/110

189/148

229/174

246/173

251/166

Stock Thunderstorm

N/A

1.81/1.58

N/A

57/49

117/95

164/139

194/156

204/161

Street Ported Thunderstorm

N/A

1.81/1.58

N/A

57/47

120/90

171/142

211/167

234/177

246/186

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Twin HeadQuarters

N/A

1.84/-

N/A

60/-

127/-

181/-

204/-

211/-

213/-

Twin Ported HeadQuarters

N/A

1.90/-

N/A

62/-

132/-

192/-

229/-

238/-

Twin Cam Ported Bullet Cylinder Heads

N/A

1.841/1.574

N/A

98/92

196/163

274/206

295/219

300/223

Stock Twin Cam

N/A

1.841/1.574

N/A

61/57

124/104

180/132

196/143

199/152

202/157

'01 Twin Cam Ported Hillside Stage III SF120

N/A

1.90/-
3.875

N/A

80/-

162/-

231/-

288/-

286/-

289/-

291/-

'05 Stock Twin Cam

N/A

1.841/1.574

N/A

57/44

122/90

179/124

189/144

197/148

198/151

'05 Twin Cam Ported Dewy

N/A

1.90/1.574

N/A

63/44

137/89

207/146

218/156

213/162

214/168

'06 Stock Twin Cam

N/A

1.841/1.574

N/A

59/44

127/98

187/147

211/168

217/174

218/178

'06 Twin Cam Ported QHP

N/A

1.898/1.625

N/A

62/56

128/111

186/153

223/171

243/182

256/190

'06 Stock Twin Cam Atwood Performance SF600

N/A

1.841/1.574
-
1 3/4" Pipe

N/A

62/53

125/112

177/155

199/177

209/184

214/189

'06 Twin Cam Ported Atwood Performance Road Warrior SF600

N/A

1.90/1.574
3.875
1 3/4" Pipe

N/A

69/56

137/124

196/170

240/197

256/210

265/215

'06 Twin Cam Ported

N/A

1.90/1.61

N/A

80/59

137/116

203/168

246/198

254/210

255/217

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

'06 Twin Cam Ported Hot-Shot MotorWorks

N/A

1.90/-

N/A

87/-

156/-

213/-

251/-

274/-

282/-

'06-up S & S SF1020

N/A

1.805/1.575

N/A

216/192

'06-up Ported S & S SF1020

N/A

1.90/1.61

N/A

249/210

'12 Stock Twin Cam Steve Vigen 1.65 ID Radius Int

N/A

1.81/1.574
3.875
1 3/4" Pipe

N/A

63/52

121/110

180/148

210/165

221/173

220/180

'13 Twin Cam Dirt Track Stage 1 Steve Vigen 1.65 ID Radius Int 7mm stems FlowData

N/A

1.85/1.61
3.75
1 3/4" Pipe

N/A

75/62

154/137

211/193

248/225

256/235

260/236

'15 Twin Cam Dirt Track Steve Vigen 1.75 ID Radius 5/16 stems FlowData

N/A

1.94/1.61
3.75
1 3/4" Pipe

N/A

64/61

144/124

211/183

254/223

267/242

275/244

Twin Cam R & R Castings / HYPerformance

N/A

1.94/1.625

N/A

65/50

134/104

192/149

237/185

263/189

281/191

Twin Cam 88 Ported Hardy

N/A

66/54

130/117

192/159

236/180

247/194

247/201

Twin Cam 88 Ported FLO Headworks

N/A

1.937/1.687

100

61/60

122/120

190/157

212/188

231/210

Twin Cam 88 CNC M2 Race Systems

86/-

1.90/1.63
3.875

202/172

232/195

252/225

Twin Cam 88 Ported Branch

N/A

266/-

Twin Cam Ported Louthan

N/A

1.90/1.615

N/A

220/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Twin Cam Ported Louthan

N/A

1.94/1.615

N/A

227/-

Twin Cam ET Performance

N/A

-
3.875

N/A

64/50

127/104

179/147

206/163

200/169

202/171

Twin Cam Ported ET Performance

N/A

1.90/1.60
3.875

N/A

69/55

132/120

203/163

251/188

263/200

269/208

Twin Cam Ported ET Performance

N/A

2.00/1.60
3.875

N/A

68/53

149/117

214/156

265/186

289/204

299/211

Twin Cam BC Heads

N/A

1.84/1.57

N/A

63/47

124/105

168/138

185/154

187/166

189/168

Twin Cam Ported BC Heads

N/A

1.90/1.567

N/A

59/46

124/96

179/138

222/180

236/208

240/219

Twin Cam Ported BC Heads

N/A

2.00/1.58

N/A

63/48

134/100

193/139

238/168

262/182

273/193

280/202

Twin Cam Ported BC Heads

N/A

2.00/1.58

N/A

64/51

136/116

192/156

240/184

268/201

280/210

287/214

Twin Cam Ported Revolution Performance Stage 1

N/A

1.84/1.575

N/A

83/61

151/120

201/165

244/184

257/190

259/195

Twin Cam Ported Revolution Performance Stage 2

N/A

1.90/1.61

N/A

73/57

148/104

205/155

249/184

261/194

265/200

268/200

Twin Cam Ported Revolution Performance Stage 3

N/A

2.00/1.63

N/A

64/53

135/112

203/156

240/187

264/201

283/211

294/213

Twin Cam Smithberg Racing

N/A

1.84/-

N/A

68/-

132/-

186/-

208/-

203/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Twin Cam Ported Smithberg Racing

N/A

1.84/1.56
3.75
No Pipe

N/A

73/50

140/104

206/151

248/186

269/199

Twin Cam 99 Atwood Performance SF600

N/A

1.841/1.574
3.875
1 3/3" Pipe

N/A

65/46

122/102

171/143

191/161

189/168

190/171

Twin Cam 99 Ported Atwood Performance Stage I SF600

N/A

1.841/1.574
3.875
1 3/4" Pipe

N/A

68/56

133/117

191/164

231/188

248/199

251/205

Twin Cam 99 Ported Atwood Performance Road Warrior SF600

N/A

1.90/1.574
3.875
1 3/4" Pipe

N/A

69/51

133/123

195/170

236/198

255/211

265/213

Screaming Eagle Twin Cam

87/70

N/A

Screaming Eagle Twin Cam

N/A

219/-

Screaming Eagle Smithberg Racing

N/A

1.90/-

N/A

61/-

126/-

188/-

228/-

246/-

251/-

Screaming Eagle Otto

N/A

1.90/1.625

N/A

59/57

123/107

185/148

220/170

231/173

228/175

Screaming Eagle Otto Clean Up Port Intake

N/A

1.90/1.625

N/A

59/44

127/95

190/150

229/178

249/184

262/184

Screaming Eagle HeadQuarters

N/A

1.90/-

N/A

55/-

112/-

161/-

199/-

228/-

244/-

Screaming Eagle Ported HeadQuarters

N/A

1.90/-

N/A

60/-

120/-

167/-

204/-

233/-

251/-

Screaming Eagle Twin Cam Ported Louthan

N/A

248/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Screaming Eagle 103 Twin Cam

95/73

N/A

Screaming Eagle 103 Twin Cam ET Performance

N/A

-
3.875

N/A

68/60

131/117

194/156

226/183

238/194

235/198

Screaming Eagle 103 Twin Cam Ported ET Performance

N/A

1.94/1.60
3.875

N/A

72/56

135/115

207/150

258/176

276/195

279/213

Screaming Eagle 103 Twin Cam Ported Hal's Speed Shop

N/A

1.80/-

N/A

283/-

Screaming Eagle Twin Cam 120

107/78

N/A

Screaming Eagle Twin Cam 120

N/A

2.08/1.625

100

62/45

131/86

188/117

221/136

234/147

244/148

Screaming Eagle Twin Cam 120 Ported FLO Headworks

N/A

2.08/1.625

100

67/62

138/94

193/137

228/172

243/199

253/216

Screaming Eagle Performance Ported Cycle Rama

N/A

2.10/1.625

76/59

148/114

203/153

254/182

284/198

300/205

312/207

Ironhead Sportster Ported FLO Headworks

N/A

1.937/1.75

N/A

60/59

117/94

164/128

191/152

200/168

Panhead NPS

N/A

1.95/1.75
-
No Pipe

N/A

56/47

113/90

153/129

170/156

174/170

Panhead and Knuckhead Ported FLO Headworks

N/A

1.937/1.75

N/A

55/54

112/112

156/139

180/163

192/177

Shovelhead BC Heads

N/A

1.937/1.75

N/A

66/51

133/91

168/120

184/129

187/134

189/136

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Shovelhead Ported BC Heads

N/A

60/47

134/102

176/137

213/152

241/174

241/192

Shovelhead Ported FLO Headworks

N/A

1.937/1.75

N/A

61/56

130/115

182/138

217/167

234/192

XL 883

N/A

1.585/1.38

N/A

50/-

105/-

154/-

169/-

Evo Sportster 883 Ported Hardy

N/A

58/-

120/-

175/-

209/-

217/-

Evo Sportster 883 Ported FLO Headworks

N/A

1.75/1.50

N/A

51/47

110/97

166/147

200/176

213/183

Stock 1200 Evo Sportster

N/A

1.715/1.48

N/A

68/-

115/-

166/-

193/-

198/-

1200 EVO Sportster Ported FLO Headworks

N/A

1.812/1.562

N/A

57/51

120/102

176/154

213/181

228/192

1200 Sportster Ported ET Performane

N/A

1.90/1.60
3.500

N/A

67/61

134/121

186/159

226/185

249/200

257/210

Evo Big Twin Ported FLO Headworks

N/A

1.937/1.687

N/A

62/55

124/119

188/156

225/184

234/207

Evo Ported ET Performane

N/A

1.90/1.60
3.50

N/A

74/55

139/120

201/158

244/189

260/201

263/206

Evo Ported ET Performane

N/A

2.00/1.60
3.812

N/A

68/59

151/117

217/154

261/191

275/201

279/202

Evo BC Heads

N/A

67/59

128/108

174/137

201/153

206/163

211/172

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Evo Ported BC Heads D Exhaust

N/A

63/51

128/109

184/152

211/179

230/200

234/214

S/C Twin Cam Stock

N/A

1.94/1.60
3.875

N/A

68/60

131/117

194/156

226/183

238/194

235/198

S/C Twin Cam Ported ET Performane

N/A

1.94/1.60
3.875

N/A

70/56

133/115

202/157

247/186

267/204

276/213

Milwaukee-8 Ward Performance

N/A

1.575/1.26
-
Pipe

N/A

97/96

195/175

276/191

311/197

324/202

324/204

Milwaukee-8 Ward Performance HD SE CNC

N/A

1.575/1.26
-
Pipe

N/A

100/88

200/177

283/217

327/224

338/226

335/228

Milwaukee-8 Ward Performance HD SE CNC Stage IV

N/A

1.61/1.30

N/A

103/92

206/189

285/232

339/239

358/243

361/246

Milwaukee-8 Ward Performance HD SE CNC Fuel Moto Level A

N/A

1.757/1.26

N/A

101/89

196/182

281/215

323/227

348/232

355/235

Milwaukee-8 Ward Performance HD SE CNC Fuel Moto Level B

N/A

1.757/1.26

N/A

103/99

198/187

281/231

325/245

358/254

376/259

Milwaukee-8 HD SE Ported Ward Performance

N/A

1.61/1.30

N/A

109/88

212/186

284/239

341/256

378/264

396/269

ARAO Evo Billet 4 Valve Alum

N/A

1.72/1.476

N/A

122/111

226/184

286/225

308/241

312/247

317/248

Edelbrock Performer 1200 EVO Sportster (OLD) Alum

N/A

1.85/1.61

67/64

127/118

171/145

206/168

232/183

250/194

Edelbrock Performer EVO big Twin (OLD) Alum

N/A

1.85/1.61

70/67

129/118

189/145

215/168

248/183

251/194

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

Edelbrock Performer RPM CNC Evo big Twin (OLD) Alum

N/A

1.94/1.625

72/88

74/68

139/118

192/150

226/170

260/185

277/198

Edelbrock 1692, 1693, 1695, 1696 Performer RPM Sportster Alum

N/A

1.85/1.61

63/57

126/101

172/132

208/154

229/170

246/181

Edelbrock 3021, 3022 Performer RPM EVO Big Bore CNC Alum

N/A

2.00/1.625

83/92

68/61

137/113

195/153

238/176

269/185

283/197

Edelbrock 1602, 1603, 1615, 1616 Performer EVO 80" Alum

N/A

1.85/1.61

63/58

130/105

187/145

225/165

244/179

251/188

Edelbrock 1604, 1606, 1607, 1624 Performer EVO 80" & up CNC Alum

N/A

1.94/1.625

69/60

136/111

192/150

233/170

265/183

275/193

Edelbrock 1687, 1688, 1694, 1697 Performer RPM Twin Cam CNC Alum

N/A

1.94/1.625

72/88

69/60

136/111

192/150

223/170

265/183

275/193

Revolution Performance Twin Cam 1.9

N/A

63/64

131/121

193/152

243/169

262/180

270/188

272/193

Revolution Performance Twin Cam Stage 1 I-45 E-45

N/A

1.84/1.575

N/A

83/61

151/120

201/165

244/184

257/190

256/195

Revolution Performance Twin Cam 1.9 Stage 2 I-45 E-45

N/A

1.90/1.61

N/A

73/57

148/104

205/155

249/184

261/194

265/200

268/200

Revolution Performance Twin Cam Stage 3

N/A

2.00/1.63

N/A

64/53

135/112

203/157

240/187

264/201

283/211

294/213

Revolution Performance Billet Twin Cam

N/A

2.15/1.725

N/A

160/130

243/202

299/245

345/265

366/275

373/278

S & S Super Stock Twin Cam

N/A

1.94/1.757

79/89

279/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

1.000

1.100

Average

S & S 107 Evo Ported ET Performance

N/A

2.08/1.60
4.155

N/A

71/53

153/117

224/172

277/204

300/220

306/226

S & S 113 Evo Ported ET Performance

N/A

2.08/1.60
4.155

N/A

68/54

140/117

210/156

267/198

298/217

307/224

S & S G2 NHRA Pro Stock Ported Darin Morgan SF600

N/A

2.68/1.90
-
No Pipe

N/A

161/-

283/-

382/-

471/-

540/-

592/-

623/-

633/-

646/-

654/-

S & S G2 NHRA Pro Stock Ported Darin Morgan SF600

N/A

2.68/1.90
-
No Pipe

N/A

168/-

287/-

383/-

474/-

546/-

600/-

634/-

654/-

671/-

675/-

S & S G2 NHRA Pro Stock Ported Darin Morgan SF600

N/A

2.725/2.00
5.25
No Pipe

N/A

165/120

279/188

379/233

468/282

535/323

600/351

642/366

671/371

691/375

Zipper Performance Billet Twin Cam

N/A

2.00/1.625

75/60

150/140

205/177

258/200

295/205

300/208

300/212

Zipper Performance Magnum Billet Twin Cam

N/A

2.10/1.715

75/60

153/140

250/200

300/237

342/253

350/273

358/288

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.700

Average

XL125

N/A

36/39

74/57

85/61

86/63

87/66

90/64

EX250

N/A

49/46

86/76

93/81

97/86

98/89

99/90

750

N/A

93/-

100/-

107/-

Welded GX200 Alum

N/A

26/-

44/-

58/-

72/-

83/-

93/-

104/-

111/-

113/-

Belmit Billet GX200 Alum

N/A

32mm/28mm

107/-

114/-

118/-

Belmit Billet GX200 Ported Alum

N/A

34mm/29mm

118/-

129/-

137/-

Belmit Billet GX200 Ported Canted Valve Alum

N/A

35mm/29mm
81mm
1.4" Pipe

32/23

67/56

99/87

126/112

148/121

155/125

161/126

166/127

169/127

172/127

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

1mm

2mm

3mm

4mm

5mm

6mm

7mm

8mm

Average

Chinese copy 125cc Ported Erland Cox

N/A

27mm/23mm
52mm
No Pipe

N/A

16/12

30/23

42/32

54/41

63/48

72/54

77/58

80/59

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

Average

'41-'53 Indian Chief, sidevalve 74cid standard port Mobeck Tekniske Alum

N/A

50.8mm/ 50.8mm

N/A

30/33

57/56

67/68

71/72

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

500 Speedway Ported /Andre' Norrback

N/A

34mm/29mm
90mm
No Pipe

N/A

64/51

129/110

175/146

198/172

209/188

213/198

214/202

216/204

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

Average

1600cc Jet Ski Ported Kelford Cams

N/A

1.31/1.11

N/A

80/74

162/122

193/137

209/146

211/152

214/156

215/158

217/159

STX 15F Jet Ski Ported Kelford Cams Exhaust Valve +1mmOS

N/A

33.4mm/ 29.3mm

N/A

41/37

83/81

129/121

167/144

204/157

227/162

238/164

247/165

GPz11 83-85 Stock Cavanaugh Racing Alum

N/A

38mm/32mm

N/A

139/-

KZ 900 Stock Cavanaugh Racing Alum

N/A

36mm/30mm

N/A

113/-

J 998 Stock Cavanaugh Racing Alum

N/A

37mm/31mm

N/A

117/-

ZX-12 Competition CNC SF600 Alum

N/A

33.4mm/ 28.35mm

N/A

175/127

178/129

183/129

ZX-12 Ported Competition CNC SF600 Alum

N/A

33.4mm/ 28.35mm

N/A

175/135

200/143

206/153

ZX-12 Alum

N/A

33.4mm/ 28.35mm
83mm

N/A

88/-

169/-

200/-

223/-

228/-

235/-

239/-

242/-

ZX-14 Alum

N/A

33.4mm/ 28.3mm

66/-

135/-

195/-

214/-

ZX-14 Performance Porting Alum

N/A

33.4mm/-

N/A

74/-

147/-

206/-

239/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

.600

.650

.700

Average

18 HP V-Twin Smithberg Racing

34/26

1.32/1.16
3.05
No Pipe

44/-

65/-

72/-

74/-

77/-

79/-

80/-

81/-

18 HP V-Twin Ported Smithberg Racing

42.5/31

1.45/1.20
3.05
No Pipe

45/37

67/52

85/61

96/69

106/77

114/83

120/87

125/92

127/95

128/98

129/99

130/100

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

510 Ported /Andre' Norrback Epoxy

N/A

35mm/30mm
98mm
No Pipe

N/A

67/-

138/-

204/-

234/-

254/-

262/-

525 Ported /Andre' Norrback Epoxy

N/A

36mm/30mm

N/A

76/-

148/-

211/-

248/-

259/-

265/-

270/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.700

Average

RZR XP 900

N/A

38mm/ 32.5mm

N/A

91/-

132/-

164/-

191/-

205/-

212/-

214/-

215/-

216/-

RZR XP 900 Ported

N/A

38mm/ 32.5mm

N/A

92/-

138/-

178/-

215/-

243/-

272/-

288/-

300/-

303/-

RZR XP 1000

N/A

38mm/ 29.2mm

N/A

91/-

133/-

166/-

198/-

230/-

259/-

271/-

281/-

288/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

22mm

Average

450 Ported /Andre' Norrback

N/A

38mm/31mm

N/A

74/-

148/-

219/-

256/-

280/-

286/-

288/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.700

.800

.900

Average

'86 GSXR 750

N/A

26mm/-

N/A

47/-

67/-

94/-

112/-

127/-

136/-

137/-

141/-

'86 GSXR 750 Ported

N/A

26mm/-

N/A

67/-

120/-

157/-

171/-

172/-

GS1100 CNC

N/A

31mm/ 27mm

N/A

MonStar Billet GS 22 Deg Alum

N/A

35mm/ 31mm

N/A

274/221

Vortec 2-Valve CNC Alum

N/A

47mm/ 39mm

N/A

267/-

Vortec II 2-Valve Alum

N/A

46mm/ 38mm

N/A

267/-

Vortec II 2-Valve Matt Smith's Head Ported by Darin Morgan SF600 Alum

N/A

46mm/ 39mm

N/A

117/109

195/153

259/187

295/206

313/212

321/213

322/214

321/216

4-Valve

N/A

30mm/ 24mm

N/A

217/-

Hayabusa Competition CNC SF600 Alum

143.4/44

33mm/ 27.5mm

19.2

224/153

231/155

235/158

Hayabusa Alum

N/A

33mm/ 27.5mm

18.8

145/121

202/147

228/157

Hayabusa Ported Alum

N/A

260/-

Hayabusa Ported Alum

N/A

282/-

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.600

.700

.800

.900

Average

Hayabusa Ported Competition CNC SF600 Alum

149.6/50

33mm/ 27.5mm

196/143

221/157

248/172

257/177

Hayabusa Sabre Heads Alum

N/A

33mm/ 27.5mm
84mm
No Pipe

N/A

39/30

81/70

120/93

158/118

191/131

218/137

232/139

237/140

238/142

Hayabusa Ported Sabre Heads Alum

N/A

33mm/ 27.5mm
84mm
No Pipe

N/A

39/30

81/65

122/97

162/121

197/135

222/142

235/150

241/154

248/156

Hayabusa Ported Sabre Heads OS Valve Alum

N/A

34mm/ 28.4mm
84mm
No Pipe

N/A

41/35

82/71

123/110

162/132

198/148

227/156

240/162

250/165

252/169

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

2mm

4mm

6mm

8mm

10mm

12mm

14mm

16mm

18mm

20mm

Average

DR 800 Single MORGO Systems

N/A

Stock
-
Pipe

N/A

80/64

154/127

216/163

254/175

270/181

277/183

DR 800 Single Ported MORGO Systems

N/A

Stock
-
Pipe

N/A

89/68

169/126

228/163

281/182

310/193

315/199

Hayabusa Alum

N/A

33mm/ 27.5mm

N/A

60/51

120/101

174/131

205/144

221/151

Hayabusa Alum

N/A

33mm/ 27.5mm

N/A

64/58

126/102

175/131

210/144

225/151

Hayabusa Ported Alum

N/A

35mm/ 30.5mm

N/A

187/-

230/-

264/-

286/198

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

Thruxton Ported Kelford Cams

N/A

1.30/1.10

N/A

41/33

82/71

125/104

164/136

197/155

220/168

227/173

235/176

239/178

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.450

.500

.550

Average

'08-up Cory Ackley/Rick Crawford

N/A

36mm/ 30.5mm
4.0
1 3/4" Pipe

N/A

100/89

196/156

235/182

255/193

261/196

'08-up Cory Ackley/Rick Crawford 3 angle VJ little blending back cut valve

N/A

36mm/ 30.5mm
4.0
1 3/4" Pipe

N/A

103/81

201/166

239/195

265/201

270/203

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.050

.100

.150

.200

.250

.300

.350

.400

.450

.500

.550

Average

'03 Raptor 660 R CHW Alum

N/A

30mm/32mm

N/A

110/88

200/153

251/198

259/203

257/207

259/207

'03 Raptor 660 R Ported CHW Alum

N/A

31mm/33mm

N/A

119/88

172/132

222/183

254/210

271/223

278/222

281/223

285/222

YZ250F West Coast

115.2/59.6

23mm/ 24.5mm

22.6

103/68

155/108

187/135

207/148

209/153

211/157

211/159

YZ250F Ported West Coast

136.7/69

23mm/ 24.5mm

23.2

105/68

156/102

189/133

214/155

238/166

249/173

253/181

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Comb. Cham. Vol

1mm

2mm

3mm

4mm

5mm

6mm

7mm

8mm

10mm

12mm

14mm

Average

YZ250F Greenslade Engineering

N/A

23mm/24.5mm

N/A

34/14

71/42

108/69

139/93

162/105

172/111

178/113

-/113

YZ250F Ported Greenslade Engineering

N/A

23mm/24.5mm

N/A

33/18

71/46

108/68

144/89

170/107

179/114

184/118

-/124

Manufacturer
Part Number

Port/Vol
Int/Exh

Valve Size Int/Exh

Combust. Chamber Vol

.100

.200

.300

.400

.500

.600

.700

.800

.900

Average

I-6 Ported Maxeffort

N/A

1.84/1.50

N/A

56/-

106/-

160/-

184/-

202/-

204/135

304 Ported John Comer

N/A

1.969/1.609

N/A

113/79

146/97

165/113

178/132

345 Stock

N/A

69/49

114/82

157/104

178/120

187/130

187/134

345 Ported Davers

N/A

72/47

122/83

169/102

196/120

207/135

209/143

392 Stock

N/A

65/46

128/77

163/99

188/114

196/125

-/131

-/136

Ported 71 Scout 2

N/A

2.02/1.65

N/A

66/55

124/93

170/122

205/139

232/152

242/165

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This Page Designed and Maintained By Stan Weiss
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Number of Calculations Done - 237

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Cylinder Head Flow Data at 28 Inches of Water

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