I have always been interested in putting a hemi in my 37 and even though I'm a chevy man I have the chance to buy a early 331 hemi out of a 1954 car. This has a 4 barrel and is rated at 235HP and the torque is 330 with a compression of 7.5:1. Since I'm not to familar with the early Hemi, can these be built up to put out 450Hp and torque of 500. I don't know yet without taking it apart how much thickness I have in the cylinder walls. If I do get this engine, I will ask my good buddy streets to help me build it.