421 SD in a '62 Catalina
71-2 455 H.O.
73-4 455 SD
Any of the Olds V8s, as long as they were gas and not deezil.
LOL. You got that right...the "dieselized" Olds 350 was one of the biggest piles of crap to ever come out of Detroit (or any other part of the world).