Ok heres my story.. I have two stock 350's one is a earliler model, aprox a early 80's, the other is the late model, approx a early 90's. I need to rebuilb the early 90's one, as the early 80's one is shot. I see the intake manifolds are different, and I want to run my intake and carb that is one my earlier engine. In some maginizes I see you can buy an adapter to make the bolts work from the earlier to late model. But can I simply swap heads from the earlier one to the late one that way I can run my intake and carb setup I have? Hope that all makes since... not woried about power or anything just want it to run right. Thanks In advance.