If they are both standard deck height, yes.
No. The 454 is an externally balanced engine, the 350 is internally balanced.
Well I have the reverse, 454 manifolds on a 350, so I would think so.
No it denfinately will not
350, 400, 454
yes, as long as the 454 is not a tall deck block.
350, 400, 454
NO it will not FIT.
NO. Not even close.
no it wont to small of a starter
yes it will need no mods to fit either
yes
yes