Help engine q
Senior Member
Joined: Aug 2011
Posts: 293
Likes: 85
From: Kokomo, IN
They are PI.
99+ 5.4 have them
01+ 4.6 have them
If you didn't already know, you'll love this if they are for your 2000 non-PI block. Higher compression, PI heads on non-PI block, than full PI motor.
http://www.sporttruck.com/techarticl...tor/index.html
99+ 5.4 have them
01+ 4.6 have them
If you didn't already know, you'll love this if they are for your 2000 non-PI block. Higher compression, PI heads on non-PI block, than full PI motor.
http://www.sporttruck.com/techarticl...tor/index.html