A 4.15 4032 piston will live well on a straight bore with .0035 clearance. As long as you know what your piston is, should be good. If it's a 2618 piston, it's a little tight.
Can't really compare to the old piston, old forged pistons grew like crazy with heat, 4032 does not. As long as you can prove to yourself you have 4032, go for it