PI or Non PI
Thread Starter
|
Senior Member
Joined: Jun 2009
Posts: 369
Likes: 0
From: Mansfield, TX
PI or Non PI
I have a 99 F 150 with 5.4l, I'm wondering are the heads on my truck PI heads or non PI? What years is PI? and is there anything distinctively different I can look at under the hood to tell the difference?
