The Stovebolt Site Forums The Shop Area Engine Shop 1954 Chevy 3100 engine swap .. hydramatic info needed

I am looking for some info on a engine swap I am doing.. I have a 1954 Chevy 3100 pickup with original Hydramatic auto transmission that the engine has no compression and I have a 235 out of a 1955 chevy that i want to swap in but need to know if anything is different ? like flywheel or anything else ? Thanks, Ben