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Old 10-06-2023, 10:37 AM   #9
HP HUNTER
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Join Date: Feb 2012
Location: Colorado Springs Colorado/Thousand Oaks Ca
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Default Re: 1979 C-10 Shop/Race Truck Build

Quote:
Originally Posted by Tim H View Post
Just how much time was spent porting the heads ? I realize that is something you have a lot of experience in.


Heres some information on the 327 build:

Heads from start to finish maybe 40 hours approx
Flow @ 28 inches SF 600 4.030 bore, 2.020 Intake valve

.200 don't remember
.300 193
.400. don't remember
.480 239
Peak 259 around .650 lift

Hp was 445 HP @ 6600 RPM
TQ was 400 for one RPM point, 390s flat for a long time

Last edited by HP HUNTER; 10-06-2023 at 10:42 AM.
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