Your car if original has a 201 ci eng.I'll share some of the things I did to improve my eng. I have a '38 Dodge bus.cpe w/the original eng. I took a '56 Ply.eng as a donor eng.(which was a 230 ci) removed the crankshaft and rods and installed them in the '38 block bored it .040 over and made a 234 ci,also used the '56 cyl.head which raised the comp. but I think the '57 head will raise it even more. I only milled the '56 head enough to make it straight. It seems that 2 and 5 rod journal may be the weakest from lack of oil. Hudson has mentioned this to me or on this site,maybe he will chime in on this with more info. Need to mention that the '56 shaft was something like 3/16 longer than the '38 shaft but it was all past the rear main and did not cause a problem for me. I also installed a T-5 5 speed manual o/d trans. Wasn't building a hot rod just a smooth ride.
