Will a 1967 mustang long block v8 fit in a 1966 mustang?
Technically it depends on what motor you have. If it's a Big Block 390, 428, or 427 then the other car must have the big block front end. A big block front end will have more room via shock tower removal. If it's a small block 289, 302, 351, then it will fit in either one.