fe will fit between the shock towers nicley. 460 will not with out some work. allot more parts for fe mustang in that year. you can get alot out of a fe. trade the 427 crank for a 428 crank and have a poor mans stroker. put in a 427 block for 450 cubes. lower rpm torgue of a 428 is nice. 410 I think is the same crank as 428 and they are easier to find.