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All your car manufacturers use multi layered steel gaskets. These help with detonation and the use of dissimilar metals.And also rotting out,or blowing out due to high compression,which all the car makers are running for emissions.
I have always used the Fel-Pro teflon coated head gaskets and they last a long time. I told my mechanic I'd pay the extra money for the teflon coated gaskets and when he learned how long my gaskets lasted, that is all he uses any more. Non coated gaskets never lasted more than 2 years on my 87 which I drive every day. The teflon gaskets last more than 6 years!
Im wondering if 7733PT2 is teflon coated as i tried to find it online and cant seem to find it ?
People I trust told me to use Fel-Pro FE1010 head gaskets with aluminum heads. So that’s what I did and I haven’t had any problems.
If you are interested in calculating compression see below.
Gasket bore 4.166”
Compressed Thickness 0.39”
I have run the 7733pt2's on every small block I have built. It is twice the quality you need.
They work, they are cheap, and reliable.
Buy them. You wont be sorry.
I agree. I've also used them on several L98s without issue.