;QUOTE="moparmat2000, post: 1973318208, member: 14566"]Rusty, I am looking at a similar build on a 1977 318. I was looking at the KB167s. The stock pistons before dissassembly are about .100" in the hole at TDC. Arent the KBs a bit taller, closer to a zero deck height? The block will need to be surfaced "decked" anyways. The heads I have are rockauto reconditioned 302s. I have not CCd them yet to verify. Going to borrow a burette from a buddy of mine to get a number. I am ready to pull the trigger on a set of KBs but dont want to if they wont help get the compression up there.[/QUOTE] 302 heads or 714 same head different part number will be at 64CC. With those KBpistons and 64cc head your CR will be pretty high im guessing in the 10:1 range but im not positive. If i were to use those pistons i would run a 360 cylinder head which are in the 72CC range and will lower your compression ratio if needed. it all about doing the math. good luck!