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catwithboost
06-14-2004, 12:51 PM
I just got one head done and had a friend take it to work and flow test it. He just called and said this is what the flow is.
Int. .025/14.4 .050/28.3 .100/56.5 .200/113 .300/164.2 .400/200.3 .500/215.8 .600/224.6
Exh .025/12.9 .050/24.3 .100/49.7 .200/103 .300/143.9 .400/183.5 .500/201.4 .600/207.7
These heads have 1.90 int and 1.58 exh. This one head alone took about 11 hrs to do. The fun part is getting the other one to flow this good.

TBone95
06-14-2004, 03:30 PM
Thats pretty good. What kind of work did you do on the exhaust side? Welding?

-Travis

catwithboost
06-14-2004, 05:08 PM
The heads were not welded. I spent some time talking to a old timer and he showed me how to get these thing to flow with out welding and causing havick with the water jacket under the exhaust port. This is what I did with these heads.
Larger Valve seats
Larger intake valves 1.90
Larger Exhaust valves 1.58
Combustion chamber reshape
Int/Exh bowl porting
Intake runners ported
Exhaust ported and polished
Shorter valve seats

catwithboost
06-15-2004, 02:38 PM
Doing some looking around still can not beat these two.
Stiegemeier Racing Heads

Lift Intake Flow CFM Exhaust Flow CFM
.200 131 120
.300 181 166
.400 217 206
.500 229 212
.600 232 215
.650 N/A 225

Coy Miller Stage 2 Heads
Intake .025/14.3 .050/28.1 .100/56.3 .200/112.7 .300/163.9 .400/199
.500/215.5 .600/224.5
Exhaust .025/13 .050/24.4 .100/49.9 .200/103.2 .300/144.1 .400/183.6
.500/201.5 .600/207.9