ok im think im gonna buy an engine for my sub finally but i need to kno if itll work. i have an 89 suburban with a TBI 350 and the engine im gonna buy is a 78 350. can i put my TBI heads on this block?? id like to keep all my TBI stuff together for cost reasons. (im in college right now) and it needs to stay TBI to pass emissions. so are the blocks the same?? will the heads bolt up? i know the bell housing is the same but what about motor mounts?? i dont have any casting #s srry. please help me here!!