332-428 were put into fords from 58-70 and were the fe engine family'then came 429-460. basicly if you build something prior to 70 an fe engine is pretty much bolt in ,they also fit back to 54 easily with the proper mounts. Starting in 68 429s started showing up in some cars,thunderbird, mercury,lincoln and other full size ford products. They will back fit but are much more work to install. This is a very basic outline and there are some exceptions once you know exactly what year and body you will use that will help determine what engine you might want to use. 
