I’d do some measuring & calculating before buying any parts.

I recently prepped some 75cc E Street heads for someone looking to update their stock bottom end MH 440.
The pistons were down the hole .165”

Here’s one that was tested last year:
https://www.forabodiesonly.com/mopar/threads/another-very-mild-440-build.482202/

A better manifold and a bigger cam would have woke it up a bit more.