V6 Head Specs?
Thread Starter
Junior Member
Joined: Sep 1999
Posts: 54
Likes: 0
From: Jupiter, FL
Car: 92,94 Camaro, 95 Bird, 12 Silverado
Engine: 5.7, 3.4, 5.3
Transmission: 700R4, T5, 6L80E
Axle/Gears: 3.70, 3.42
V6 Head Specs?
Does anyone happen to know what the 3.1L V6 valve sizes, combustion chamber cc's, and cam specs are. Any answers to the above questions would be much appreciated.
Thanks
Brian
Thanks
Brian
Supreme Member
Joined: Jan 2001
Posts: 7,604
Likes: 1
From: ****SoCal, USA****
I could cheat but I'll help ya.
FIRST specific numbers go to the GM performance Parts book $6 any GM dealer. Best help for ya too!
Second-
Differences
THERE ARE NONE between ANY RWD MPFI Heads.
The valves are the same size as are the CC's.
WHERE IT GETS DIFFERENT........
The 3.4 heads are identical except for the SPRING POCKET SIZE!
The 3.4 heads have more meat there to fit a dual spring for using the LT-1/Z-28 type springs for the higher RPMS the 3.4 can reach due to the cam
ALSO
The cam for the 2.8-3.1 is identical.
You can even steal parts from the FWD GM cars up to the 1987(
but 1978 was a really good year for Disco & Grateful Dead Concerts!) model year as they are identical, too.
THE VALVES ARE SMALLER on the 60* CARB'd motors.
Besides that even those smaller valve heads are identical to the MPFI heads (except valve size as stated & later on, spring pocket size area).
Hope this is good guide for you without specific numbers.....
FIRST specific numbers go to the GM performance Parts book $6 any GM dealer. Best help for ya too!
Second-
Differences
THERE ARE NONE between ANY RWD MPFI Heads.
The valves are the same size as are the CC's.
WHERE IT GETS DIFFERENT........
The 3.4 heads are identical except for the SPRING POCKET SIZE!
The 3.4 heads have more meat there to fit a dual spring for using the LT-1/Z-28 type springs for the higher RPMS the 3.4 can reach due to the cam
ALSO
The cam for the 2.8-3.1 is identical.
You can even steal parts from the FWD GM cars up to the 1987(
but 1978 was a really good year for Disco & Grateful Dead Concerts!) model year as they are identical, too.THE VALVES ARE SMALLER on the 60* CARB'd motors.
Besides that even those smaller valve heads are identical to the MPFI heads (except valve size as stated & later on, spring pocket size area).
Hope this is good guide for you without specific numbers.....
Last edited by KED85; Nov 14, 2002 at 09:17 AM.
Supreme Member
Joined: Dec 2001
Posts: 1,282
Likes: 1
From: Elkton MD USA
Car: 1983, 1986
Engine: 2.8 2bbl, 2.8 MPFI
Transmission: 200C 3 speed, 700R4
Axle/Gears: 3.08, 3.42
Originally posted by KED85
...You can even steal parts from the FWD GM cars up to the 1978 model year as they are identical, too...
...You can even steal parts from the FWD GM cars up to the 1978 model year as they are identical, too...
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