I have a 1964 1/2 Mustang. I got the car from its second owner with a recently rebuilt engine. The engine is a 260 V8, I have ran the numbers on many different sites and they all say that it should be a V8 engine. But the motor mounts do not fit the car. They are too big, so we had to modify them. I have read that two different 260 V8 engines were used in the early 1964 Mustangs. Is there a way that I have one of these other 260s that were used in the Shelby Cobras, Fairlanes, Comets, and Meteors? If anyone knows anything about the early 1964 1/2 Mustangs and engines, please let me know! I am very curious as to what engine I really have! Thanks!