racerdude5
Well-Known Member
On a Small block Mopar, with 302 heads and stock valves. Let's assume the deck height is factory at 9.6 inches and the piston to deck clearance is .067 inches. The heads have not been milled at all either. We'll be running head gaskets with a compressed thickness of .03 inches, making our total piston to head clearance .097 inches. With this clearance from piston to head, what is approximately the maximum amount of lift I can run on my can (for both intake and exhaust)? And at what amount of lift, will I need valve relief cuts in my piston?