ive done some research on the swap i know you can use the intake on the 5.4 or can swap and use the addapters for the 4.6 and you need to get an 8 bolt flywheel.... shortied headers from 4.6 bolt right up and that ecm,harness is the same needs bigger fuel pump ive heard but not sure.... anyone know anything i havent already found out please fill me in!!!