I put a 351 c in a 64 falcon.It fit pretty tight,but if you cut the inside of each fenderwell off from about one inch above the a arms bolts and put a steel plate in theres plenty of room,i took out the top engine bay struts and made bolt in ones, also i made a crossmember to connect the lower a arm mounting points together under the oil pan.i took a 67 mustang one and made it fit,i used the stock exaust manifols just had to grind some excess casting material off I hope this helps larry