Those engines have different blocks, cranks, rods, pistons, heads, valves, turbos. This is common knowledge you tool. Members here have even tried to buy some of these parts from Ford to no avail.
Guess they didn't teach you that at Pep Boys University?
Why don't you provide more information withsome actual facts to back it up? Please, do provide all the specific differences! Or did you just make it all up and guess? We all know the answer, Sasquatch.