Piston rock, quench and head gasket measurement

You said an .045 gasket, and 4.03 bore pistons with the piston protruding a max of .011" at "max rock". I think you are fine with those numbers. If the pistons come out more, or a thinner gasket is used, you might not be... If you have .030 after taking into account the rock (which shouldn't be more than .010" on a 4.03 bore and modern piston material) you are fine. Least in my experience.