I's this a fresh eng. that was never fired?

bottom line is:
generally
stock cast piston installed .001-.002
hypereutectic cast .0015-.0045
forged .0035-.007


You would have to have the known current bore size current and condition. then measure the forged pistons to know how much margin you have to play with.

Last edited by B1MAXX; 11/19/17 12:25 PM.