318 with 360 crank-another peeing contest

Oh yeah, I forgot to cut the difference in half. But still, that's .135 out of the hole, minus .060 that they are usually in the hole...comes out to .075 out of the hole. That's a lot. You could probably knock a little off the top of the piston, but I wouldn't think you could take more than .030-.040 off, which still leaves it .035-.045 out of the hole, which is still a lot. You'd need to run a thick head gasket and not go too high on the cam lift. Most builders keep it zero to maybe .020 above deck


Back when the Earth was flat, Hot Rod did one of these but used Speed Pro +.030" 318 pistons whacked .100"!!!! Bye bye valve reliefs.
An Isky 260 cam, Mopar Performance 'bracket' heads and Performer intake were used but it never saw the dyno.