Maybe, but they changed designs every 15 minutes. For example, they significantly changed the suspension and steering on my '63 T-Bird, so many parts won't interchange with a '62, and then they changed a bunch of stuff in '64 when they restyled the car. In '65, the 289 got a new timing chain style in mid-March of 1965. The engine in my Mustang was built March 10, 1965, with the old obsolete style. The newer style rubbed the timing cover. I was 20 years old when I tried to figure that whole thing out. They had 4 different 351s over the years (I count the 352 because it had the same bore and stroke). They had a 427, a 428, and a 429 all in production the same year. That's just off the top of my head.
Nothing against Ford, I like them and I own two classics and two daily drivers, but I've always felt that the left hand didn't know what the right hand was doing in the planning/engineering departments.
