how wide is the block of a 5.4? Is it a lot wider than that of a 4.6? If anyone has done the swap is there any problem with the exhaust headers hitting or is it just tight up top by the heads? Ive done a search for this but no one seems to give actual demensions on the width of the block. I want to do the swap but i dont know how much of my turbo kit (tp) would have to be altered to make it fit in the car. Hopefully none but i doubt it. Any help would be appreciated.