Need help with PI swap!!
I have a 4.6 98 Expedition with 240k on it and it needs its heads swapped. I've already had the current heads resurfaced and I don't want to resurface them again. It's the non-PI version. I figured since I'm going to be breaking her down I might as well swap on the newer PI heads from a 2000 onward including the newer Intake manifold. I'm certain this is a common swap but I can't seem to find much info on it here. I need to know if it's a simple swap and what needs to be changed out like gaskets, vacuum hoses (if any) and other minor things.
Thanks for the help guys!




