Yes I was thinking there will be intake sealing problems with thick head gaskets. I’m trying to help a buddy out. Of course he has lots into this build so far so he wants it done right, but don’t spend much on it. Lol
I'm still cornfused. If the piston is positive .040 and you have X heads or similar, what the issue? Why the thick gaskets? Unless the heads are milled to nothing, being .040 out is actually probably pretty good.
I have a 340 on the stand out in the shop right now, with .030 68-71 TRW replacement Pistons. Should be 10.5:1 but they never are. With a 68 CC chamber and the piston .045 out of the bore it's at a measured 10.58:1. And that's a pump gas deal. And it won't rattle. And it won't need reduced timing to run. I'm not understanding what the issue is with the piston out of the bore, unless you are dead set on using a head with a closed chamber. There are very few closed chambers I like.
