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Shim Head Gaskets

825 Views 4 Replies 3 Participants Last post by  DFER
Okay, I think I already know the answer but going to ask the opinions of the low comp guru's here. I've got a 77-78 454 and purchased a Comp Cam XES262 532 lift 224-230 duration. I have a set of shim head gaskets that I could put on the engine but don't really think this will make any difference in how the car runs. It would add a minimal amount of compression so I am of the mindset to save them for the next build. Generic headers, old school edelbrock intake, and 4 speed with 3:55 gears, 69 Chevelle.

Shim gaskets worth the effort??

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Don't waste your time .
Looks like you'd gain about .2 to .6 depending on your heads.
If you know your current specs ,there's a comp ratio calculator here.
1 - 1 of 5 Posts
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