General 454 question
General 454 question Hey all,
I pulled my driver side exhaust manifold off of Big Poo.
89 454 TBI
I know GM had no exhaust gaskets on these, mine was ticking, I managed to get all the bolts out except the ones the hold the exhaust to the exhaust manidfold. Two of those broke, no biggie
My question is, I don't want to do this again, what kind of gasket should I used.
Also
The engine is rebuilt for GM. It says 30 over. I wonder how you compute the difference in size.
Later all.
I pulled my driver side exhaust manifold off of Big Poo.
89 454 TBI
I know GM had no exhaust gaskets on these, mine was ticking, I managed to get all the bolts out except the ones the hold the exhaust to the exhaust manidfold. Two of those broke, no biggie
My question is, I don't want to do this again, what kind of gasket should I used.
Also
The engine is rebuilt for GM. It says 30 over. I wonder how you compute the difference in size.
Later all.
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well to find the displacement, all you have to do is multiply. bore x pie (3.14) x stroke x number of cylinders.
now all you have to do is find the stock dimensions and add .030 to the bore.
brody
now all you have to do is find the stock dimensions and add .030 to the bore.
brody
Last edited by XLR8N; Aug 15, 2007 at 10:45 AM. Reason: never attended grammar school
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Originally Posted by Low N Slow
I had an 89 suburban with a 454, there was a service bulletin that added a multi layer steel gasket to fix the problem. I put them in mine and never had another leak.
FormerVendor
Joined: May 2004
Posts: 247
Likes: 0
From: Portland Oregon
You can use the new 8.1L truck engine exhaust manifold gaskets, they are like the LS1 steel shim gaskets. Machine the manifold and then use one of the gaskets between it and the block. Or you can use a FelPro exhaust header gasket.