PI or Non PI

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07-29-2009, 04:46 PM

stevenminix

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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?

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07-29-2009, 04:59 PM

phil6608

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There PI .

Phil

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07-30-2009, 01:09 AM

Faster150

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Penile Improved....

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