Quote Originally Posted by mopower440 View Post
ok, after reading about the crank sensor and heads and all, let me ask it a different way, in order to drop in a 5.3 without anything else besides a pcm retune, what year model 5.3's will work, meaning i dont have to worry about checking head numbers or crank sensor colors or any of that..1999 only or? Truck is a 1999
Any from 99-06... like stated.