Now you need to address Ford and the "other" GM engines. The other Gm engines are easy from here.....they all use the same mounts and bellhousing patterns. Chevy was the odd man out with that and I never understood why they did that. Had they cast the rest of the GM family with the chevy mounts and bellhousing pattern, they would have all been the same. But Buick, Olds, Pontiac and Cadillac were all the same and then Chevy. LOL Course the way you are whippin this up, you could just make it when you needed it. Must be nice to have all this talent. lol