Post your LT1/LT4 Ported heads Flow #'s
AFR 227's CNC Ported with their competition port and then finish hand ported/polished to clean up short radius turn on the intake.... California Street Machine finished them up.. My full flow sheet is at the shop but I remember the peak #'s..... Flowed on a 4.060 bore and without a pipe on the exhaust....
.650 lift intake: 321cfm
.650 lift exhaust: 227cfm
The mid and low lift were killer as well.... which ultimately is more important than peak. I just can't remember all those #'s... i'll get my flow sheet tommorrow and update this post...
.650 lift intake: 321cfm
.650 lift exhaust: 227cfm
The mid and low lift were killer as well.... which ultimately is more important than peak. I just can't remember all those #'s... i'll get my flow sheet tommorrow and update this post...
Originally Posted by BigKap94z
.100: 74/64
.200: 147/118
.300: 203/167
.400: 249/197
.500: 269/214
.600: 284/225
.700: 287/232
Exhaust was flowed with a pipe. Also backed up on another bench, and flowed alittle higher everywhere.
.200: 147/118
.300: 203/167
.400: 249/197
.500: 269/214
.600: 284/225
.700: 287/232
Exhaust was flowed with a pipe. Also backed up on another bench, and flowed alittle higher everywhere.
This is a LT4 head with port work but stock valves. Kinda crappy when most others get 300+
IN EX
0.100'' 79.8 55
0.150''
0.200'' 156 108
0.250''
0.300'' 205.5 136
0.350''
0.400'' 241.8 156.1
0.450''
0.500'' 270 176.7
0.550'' 277.5
0.600'' 282 188
0.650'' 283.5 191.1
0.700'' 285 194.2
IN EX
0.100'' 79.8 55
0.150''
0.200'' 156 108
0.250''
0.300'' 205.5 136
0.350''
0.400'' 241.8 156.1
0.450''
0.500'' 270 176.7
0.550'' 277.5
0.600'' 282 188
0.650'' 283.5 191.1
0.700'' 285 194.2
Originally Posted by Chopstix
GTP Stage 2 $1600
LT1 castings
2.02/1.55
185cc intake runner
Flowed by Brodix
Intake
.200=131.6/44
.300=188.4/63
.400=233.3/78
.500=262.6/87.8
.600=263.2/88
.650=256.6/85.8
.700=256.0/85.6
Exhaust
.200=109.5/34
.300=148.1/46
.400=175.5/54.5
.500=193.2/60
.600=202.8/63
.650=204.4/63.5
.700=206.1/64
LT1 castings
2.02/1.55
185cc intake runner
Flowed by Brodix
Intake
.200=131.6/44
.300=188.4/63
.400=233.3/78
.500=262.6/87.8
.600=263.2/88
.650=256.6/85.8
.700=256.0/85.6
Exhaust
.200=109.5/34
.300=148.1/46
.400=175.5/54.5
.500=193.2/60
.600=202.8/63
.650=204.4/63.5
.700=206.1/64
Looks really familar to my old GTP/MTI Head Flow numbers, I bought mine used, had a couple guys at SAM take a look at them, cleaning up the short turn and cleaning the port work up would have picked them up a lot, I ended up not doing h/c though
AFR LT4 190's 58cc w/ 2.02/1.60 valves
Port work done by Lloyd Elliot.
Flow numbers
In
.200 140
.300 204
.400 248
.500 278
.550 280
.600 301
.650 304
Ex
.200 90
.300 128
.400 155
.500 182
.550 195
.600 210
.650 212
oh btw, they are for sale
Port work done by Lloyd Elliot.
Flow numbers
In
.200 140
.300 204
.400 248
.500 278
.550 280
.600 301
.650 304
Ex
.200 90
.300 128
.400 155
.500 182
.550 195
.600 210
.650 212
oh btw, they are for sale
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WOW my heads must be some kind of freak. with no port work on the intake other then the bowls and OVER ported EX ports they flow near the same as LE heads that RedLT4mike has. Or someone has a happy bench who did my heads. To bad they are a sponcer
Last edited by Imnotfast; Sep 27, 2007 at 05:18 PM.
