I know these questions have been exhausted but....I have a '48 3600 with a sm420 mounted to a 216. I have a 265 small block i want to replace the 216 with, do I need to swap bellhousings? Also will the stock radiator take the heat of the 265? It's not a hot rod engine just stock. I have a recessed firewall in my cab so I shouldn't have any fit problems. Decided to save the Big Block for another project. Well thanks in advance. Jess


1951 3100