A tad late but I guess better late then never. The 351 will fit and bolt into the II body. You will need the Mustang II bellhousing for the C-4 or the 4 speed if going that route 68 Falcon 302 mounts will lower the engine in the chassis 1/4 inch but the oil pan will rub the rack if not massaged a bit. Headers will be a big problem There are Windsor swap headers out there for the Pinto that can be made to work the Headman Mustang II headers will work with a few mods the Cast iron exhaust manifolds fit just fine. As for transmission choices the T-5 will go in with a few mods the AOD is harder to get in, But I did it. With the falcon mounts and a NO rise intake it should fit under the hood with a drop base aircleaner
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74-78 MustangII's So many II's so Little Time.
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