Sometime in the near future i want to do an engine swap on my 03gt. I have heard about alot of people doing the 5.4L swap with not too many problems. I want DOHC, and either 3v or 4v. I heard that the 5.4L goes in farly easy, but i coudln't find too much info on it. If not the 5.4, i would probably just drop in the 03/04 cobra engine. Any info on the 5.4 swap would b helpful. THanks.