Question for you tech guys out there. Were there any differences in the 2004-2006 5.4 and the 2007 5.4? Trying to figure out if performance accessories for 04 - 06 models will work on an 07.

Thanks.

PS - I tried a search but it wouldn't let me use 5.4, 07, or any other figure with less than 3 letters.

 

The valvetrain is a little different on 2005+ engines, rocker arms, cams and cam phasers.