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Discussion Starter #1
Small Port Stock-layout Head Flow Numbers

E7 "Fuelie" Head

Courtesy of Scott Johnson

Unported

.100=58/42
.200=117/88
.300=174/117
.400=196/131
.500=224/137
.600=239/141
.700=247/142

Ported

.100=74/54
.200=147/103
.300=211/137
.400=263/169
.500=289/191
.600=303/206
.700=312/219

F3 "Fuelie" Head

Courtesy of Scott Johnson

2.19 x 1.76

Ported

.100=87/82
.200=163/116
.300=227/150
.400=275/175
.500=305/199
.600=316/215
.700=326/222

D3VE Head

Courtesy of Scott Johnson

Unported

.100=62/47
.200=119/87
.300=189/119
.400=236/125
.500=263/129
.600=270/129

Ported Stage 2 standard flange on intake and Stage 2 on exhaust

.100=95/60
.200=163/107
.300=223/140
.400=268/168
.500=301/195
.600=325/202
.700=342/202
.800=355/202

DOVE Head (C8 and C9 heads will be similar)

Courtesy of Scott Johnson

Unported

.100=62/47
.200=119/87
.300=189/119
.400=236/134
.500=263/135
.600=279/135
.700=289/135

Ported Stage 2 standard flange on intake and Stage 2 on exhaust

.100=97/60
.200=174/107
.300=251/140
.400=292/168
.500=307/195
.600=322/212
.700=337/220
.800=349/220

Edelbrock Standard Port Head

Courtesy of Charlie Evans

2.19 x 1.75

Unported, out of the box with no test pipe on the exhaust:

.100=66/58
.200=135/106
.300=202/144
.400=253/171
.500=296/187
.600=316/200
.700=327/205
.750=333/207

Fully ported with Victor port match

.100=67/57
.200=138/114
.300=204/158
.400=260/189
.500=309/216
.600=334/230
.700=347/241
.750=354/243

TFS Street Head

Courtesy of Charlie Evans

2.20 x 1.75

Unported, out of the box with no test pipe on exhaust

.100=67/51
.200=144/100
.300=211/138
.400=275/169
.500=325/194
.600=351/211
.700=351/223
.750=352/227

Fully ported with Victor port match

.100=70/58
.200=153/110
.300=231/154
.400=295/187
.500=335/219
.600=358/240
.700=367/251
.750=370/256
 

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Discussion Starter #2
CJ Port Head Flow Numbers

Cast Iron D0OE-R

Courtesy of PullinBret

2.250 x 1.75

Unported

.100 - 72/55 76%
.200 - 137/109 79%
.300 - 200/134 67%
.400 - 266/149 56%
.500 - 289/157 54%
.600 - 317/161 50%
.700 - 337/163 48%
.800 - 350/???

Courtesy of Mike R.

2.245 x 1.725

Ported

.100 - 81/57 70%
.200 - 156/112 71%
.300 - 227/151 66%
.400 - 277/175 63%
.500 - 310/192 62%
.600 - 343/203 59%
.650 - 352/206 58%
.700 - 362/209 57%
.800 - 375/211 56%

Courtesy of Scott Johnson

Unported

.100=67/50
.200=133/94
.300=186/122
.400=235/140
.500=275/151
.600=302/158
.700=322/159

Ported Stage 3 on intake and Stage 2 on exhaust

.100=81/57
.200=156/112
.300=227/151
.400=278/175
.500=311/192
.600=343/204
.700=353/207
.800=375/211

Edelbrock RPM CJ Head

Courtesy of ScottJ

Out of the box

.100 - 82/64 78%
.200 - 156/110 70%
.300 - 225/155 68%
.400 - 279/182 65%
.500 - 323/200 61%
.600 - 341/214 62%
.700 - 347/212 61%
.800 - 350/212 60%

Stage 2 intake and exhaust port

.100 - 79/64 81%
.200 - 153/114 74%
.300 - 225/161 71%
.400 - 278/192 69%
.500 - 324/215 66%
.600 - 353/240 67%
.700 - 365/248 67%
.800 - 380/250 65%

Blue Thunder Heads With Chevy Exhaust Port

Courtesy of Charlie Evans

Out of the box - Unported - with a valve job

.100 - 67/60 89%
.200 - 129/114 88%
.300 - 188/148 78%
.400 - 251/176 70%
.500 - 301/194 64%
.600 - 322/207 64%
.700 - 331/215 64%
.750 - 335/219 65%

"Super" Bowl Work/Blending

.100 - 71/61 85%
.200 - 150/118 78%
.300 - 209/158 75%
.400 - 273/188 68%
.500 - 329/213 64%
.600 - 340/237 69%
.700 - 343/258 75%
.750 - 346/266 76%

Fully Ported Street/Strip

.100 - 72/67 93%
.200 - 148/122 82%
.300 - 213/163 76%
.400 - 277/191 68%
.500 - 331/215 64%
.600 - 351/241 68%
.700 - 356/265 74%
.750 - 359/276 76%

Fully Race Ported

.100 - 73/67 91%
.200 - 152/122 80%
.300 - 216/163 75%
.400 - 281/198 70%
.500 - 335/227 67%
.600 - 363/251 69%
.700 - 377/271 71%
.750 - 380/280 73%

Ford Aluminum SCJ Heads

Courtesy of ScottJ

Out of the box

.100 - 73/60 82%
.200 - 155/106 68%
.300 - 222/141 63%
.400 - 275/177 64%
.500 - 314/191 60%
.600 - 317/203 64%
.700 - 316/211 66%
.800 - 321/213 66%

With hand blending

.100 - 81/59 72%
.200 - 155/104 67%
.300 - 250/146 58%
.400 - 313/175 55%
.500 - 359/195 54%
.600 - 345/206 59%
.700 - 340/213 62%
.800 - 331/217 65%

With hand blending and seat & short turn work

.100 - 95/59 62%
.200 - 166/104 62%
.300 - 256/153 59%
.400 - 330/182 55%
.500 - 380/200 52%
.600 - 370/213 57%
.700 - 380/238 62%
.800 - 370/250 67%

Courtesy of Charlie Evans

2.25 x 1.76

Fully ported with no test pipe on exhaust

.100=71/58
.200=159/114
.300=259/161
.400=340/200
.500=394/226
.550=398
.600=375/240
.700=367/248
.750=366
.800=364/252

Jon Kaase P-51 heads

Courtesy of Charlie Evans

2.25 x 1.76

Out of the box

.100"=74/
.200"=172/
.300"=260/
.400"=335/
.500"=376/
.550"=388/
.600"=384/
.700"=368/
.750"=367/
.800"=368/

Intake bowls pocket ported

.100=74/
.200=171/
.300=260/
.400=337/
.500=384/
.600=399/
.700=403/
.750=404/
.800=407/

Out of the box but with 2.3 Intake valve and valve job changed

.100=73/
.200=149/
.300=245/
.400=328/
.500=388/
.550=409/
.600=395/
.700=377/
.750=372/
.800=369/

Fully ported with 2.3 valve with no test pipe on exhaust

.100=72/57
.200=155/112
.300=253/151
.400=336/187
.500=392/219
.600=423/242
.700=421/255
.750=421/260
.800=418/264
 

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Discussion Starter #3
A-head Flow Numbers

New-Style TFS A460 91cc Head

Courtesy of Charlie Evans

2.35 x 1.88

Out of the box

.200 - 157/112 71%
.300 - 233/157 67%
.400 - 293/190 64%
.500 - 345/218 63%
.600 - 380/240 63%
.700 - 390/255 65%
.800 - 392/262 66%

Port work done

.200 - 157/128 81%
.300 - 236/164 69%
.400 - 311/209 67%
.500 - 375/265 70%
.600 - 419/297 70%
.700 - 440/318 72%
.800 - 460/331 71%
 

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Discussion Starter #4
C-Head Flow Numbers

Ford C-Head

Courtesy of Charlie Evans

45-degree seats
2.45 x 1.90

Out of the box

.200 - 159/111 69%
.300 - 227/150 66%
.400 - 285/183 64%
.500 - 327/201 61%
.600 - 351/214 60%
.700 - 367/221 60%
.750 - 380/224 58%
.800 - 380/225 59%

Bowl blend

.200 - 154/111 72%
.300 - 230/166 72%
.400 - 306/217 70%
.500 - 380/260 68%
.600 - 425/270 63%
.700 - 427/293 68%
.750 - 418/299 71%
.800 - 413/302 73%

Hand ported

.200 - 158/125 79%
.300 - 238/164 68%
.400 - 316/212 67%
.500 - 384/270 70%
.600 - 431/295 68%
.700 - 464/315 67%
.750 - 476/320 67%
.800 - 480/325 67%

CNC program

.200 - 160/130 81%
.300 - 245/170 69%
.400 - 327/210 64%
.500 - 400/280 70%
.600 - 450/315 70%
.700 - 478/340 71%
.750 - 490/347 70%
.800 - 500/355 71%
 

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Discussion Starter #5
Hemi Heads

Stock Hemi Heads

Courtesy of Charlie Evans

2.282 x 1.90

These are unported factory original heads, with the original valves and a 30 degree seat angle on the intakes and a 45 degree seat angle on the exhausts, after a valve job.

.100=87/56
.200=154/110
.300=201/158
.400=252/190
.500=297/212
.600=330/226
.700=348/237
.800=351/246

Courtesy of 747JETMECH

2.36 x 1.960

Ported

.100=122/73
.200=220/159
.300=285/196
.400=360/230
.500=405/257
.600=436/270
.700=433/282
.800=419/291
 
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