My question is whether the gasket rings will interfere with the pistons when crushed. I can picture the ID narrowing when that happens. ???

For efficient combustion, we like having the piston-to-head clearance at .030-.032" in a blueprinted motor (meaning the rods and/or piston have been corrected so they all come out the same). That means a zero deck height with the gasket in question, assuming it does crush to .032".

The reason we don't go tighter than that on the clearance is because we allow .030" for so-called rod stretching at high temps/rpm. Under those conditions, the clearance is essentially zero.

Point is that the pistons will definitely need to come up through the gasket without hitting it.