| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
04-01-2003, 10:33 AM
|
||||
|
||||
What are the various head gaskets and crush thickness available for our Pontiacs? ANy in the 0.045 range?
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
|
#2
04-01-2003, 10:33 AM
|
||||
|
||||
|
What are the various head gaskets and crush thickness available for our Pontiacs? ANy in the 0.045 range?
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
|
#3
04-01-2003, 11:22 AM
|
||||
|
||||
|
There is a 0.045 cruched thickness gasket for the Pontiac. It is the ROL high performance gasket(HG31320HT). Although I have ready good things about them from Cheby magazine build ups, there seem to be problems with the Pontiac.
I tried them on my .034 over 455 and the problem I ran into was the fact that when looking at the gasket wiht the silicone beading facing up, the second hole from the right is actually too small. When crushed the steel ring crushes smaller than the bore. I found out because I tried to use them for the precise reason that i wanted a .045 crush gasket. I installed the first set and had water filling cylinder 4. This was on a brand new rebuild. I tore it down, cleaned and tried a second set of the same gaskets. Same problem. I then took the heads and had them throughly checked for straightness and cracks. They turned out to be fine. It was then when I fully examined the gaskets that I saw the problem. I rebuilt with fel-pro and haven't had a problem. The reason I wanted a .045 gasket was because I had a couple of pistons sticking out of the hole by .002. Now with the .039 felpro the clearance is reduced to .037 on those cylinders, but doesn't seem to be a problem. Anyway sorry about the long post. Just wanted to give you the heads up on the ROL gaskets I tried. Jim Butler offers .045 crushed thickness gaskets: http://www.jbp-pontiac.com/products/.../jbp_head.html |
|
#4
04-01-2003, 12:54 PM
|
|||
|
|||
|
Skip,Butler sells a gasket that crush at 46,I have used them a lot.Tom
|
| Reply |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Linear Mode
