So recently and sadly I blew the motor on my 2004 v6 3.9 Mustang, and it is pretty much pointless to get it remachined and everything, and I can't find any 3.9 motors for sale out of a mustang just because they only made them for like 6 months with it in. My question is though can I just swap in an earlier 3.8, and will the engine computer be the same?

Thanks and goodnight