[65 Lamnas]

Originally Posted by mechanic17

It's an old thread, but I dug up a set of sealed ones from GM. No date that I could find. I opened one up because I'm going to be using it. It's a sandwich type gasket, two metal shims with whatever the "paper" material is in between. .033" as per the spec noted above. Measured with a vernier. Whether these can compress down to .022", I don't know how to find that out.

So I'm just using an even .030 in my calculations for SCR. I'm about .015" in the hole so I'm happy. Valve to piston clearance won't be an issue with the cams I use, though I will check as always

I realize this is an older thread....I've had a few of these gaskets over the years. I believe Victor-Reinz was the GM supplier of some (if not all) of the GM head gaskets. They had their own gasket line, and many of them were identical to the GM offerings, other than the markings. I'm not sure how this might help, other than if someone had an old VR catalog around, it'd be worth a look.