this could get ugly. pontiac/frankenstein
well, i just got a 69 t/a clone. previous owner claims the engine is a 70 455 h.o. and the casting numbers on the heads verifies that. the stamp on the front of the block says it's a 67 400 ram air block. edelbrock intake, holley carb.
the engine needs to be pulled and gone through. he claimed bottom end noise but i'm hearing top end for sure bottom maybe.
i can't see any actual casting numbers for the block only the stamp on the front passenger side. would those heads bolt on that engine with no modifications? this is the first pontiac i've ever owned and there is less information out there than on old ford stuff or i haven't come across it yet.
how big of a mess could i be in here? not planning on racing the car it'll just be a cruiser. won't be pulling the motor for a few days and it's driving me crazy.