We swapped out putting a 302 Windsor into a 56 GMC for a fellow that done metal buildings. I think we used a tubular mount from Chassis Engineering that ran from frame rail to rail and welded the mount stands to this. If you need the short waterpump/pulley setup don't buy aftermarket, the V8 T-birds in the early 90's had them. Two things can be said about this: they're a tough little engine cause teenagers beat the heck out of them in their mustangs, and reaching the distributer across those high 56 fenders was sure easier. Everything from accelerater linkage to radiator outlets are all wrong but that what hot rodders do.