piston rock depends alot on bore clearance. I worry more about actual gasket thickness being what it is supposed to be. I wouldn't think a 572 would be a high RPM screamer & I'd be OK with a confirmed/measured three times! .035. when done I would see if I could measure the space between the head and the deck anywhere on the outside of the block & more important, on assy with 1 head gasket on, with the block upside down, loosen a rod cap then turn crank till the piston is at TDC & see how far you can push the rod/piston further in till it contacts the head (that is the bottom line that it will see when operating). if its too close you are only out 1 gasket assuming all measurements on both decks everywhere are equal.