First off, if you didnt know, im trying to find a descent condition 70 chevelle ss. i want to drop in an engine in there than can burn a honda....which wont take much... but anyway...i was wondering what is more powerful, a 454 or a 502. i also need to know where i can get this vehicle i want in descent codition. i really only want to swap engines. im not very good at working on cars. where is the best place to look for them. also, where is a good place to find reliable engines?