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Ohio TCCoA
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863 Posts
Discussion Starter #1
Hey can anyone tell me by this picture if these are PI heads?


Am I right that the intake ports on a PI head are kinda tear drop shaped. I was looking at a set here in town at a local junk yard tring to figure out if they are PI or not also. Thanks for the help.

later,
jay
 

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Refrigerator Raider Hater
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11,719 Posts
DOHC refers to two cams in each head. Those are SOHC.

PI heads have heart shaped combustion chambers, and have "PI" written on the head itself.

Kinda hard to see....but they look like NPI to me.
 

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High-Mileage 4.6L Thrasher
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3,232 Posts
Those are not PI heads.The PI heads have a distictly square intake port.
JL
 

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Slacks 12 months a year, TCCoAAC Member
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2,530 Posts
Where to look.....

Spidey2721 said:
Anyone have pics of pi intake ports? Also, where is the "PI" stamp on the heads.


Thanks,
jay
Look in the center of the fead where the intake bolts to.It will sy PI in the center but you have to have the intake off to actually see it.It is along the lip where the valve cover bolts to.
Hope this helps you,
Chris
 

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Ohio TCCoA
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863 Posts
Discussion Starter #8
Thanks Scott that picture is worth a thousand words. LX-Tasy thanks also I will look for that when I go check out these heads at the junk yard again. I have a 50 dollar bid on those npi 5.4 heads in the picture. If I get them for that bid I will use them as trade or part trade for the ones at the junk yard. If the heads at the junk yard are what they same they are: 99 f-150 5.4 heads. No, they are not attached to the truck or block. lol

Later,
jay
 

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Slacks 12 months a year, TCCoAAC Member
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2,530 Posts
I have seen this.......

Spidey2721 said:
Thanks Scott that picture is worth a thousand words. LX-Tasy thanks also I will look for that when I go check out these heads at the junk yard again. I have a 50 dollar bid on those npi 5.4 heads in the picture. If I get them for that bid I will use them as trade or part trade for the ones at the junk yard. If the heads at the junk yard are what they same they are: 99 f-150 5.4 heads. No, they are not attached to the truck or block. lol

Later,
jay
A 99 5.4 with PI heads at the salvage yard.Then I saw another 99 without them.You just have to look for that PI if you can see it.Look at the core motors most salvage yards have,you can usually get them for 350 complete.
Good luck,
Chris
 

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Slacks 12 months a year, TCCoAAC Member
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2,530 Posts
Thats not what I was talking about........

Dr. FrankenCougie said:

"That PI stamp"
The stamp i was talking about it is about the middle of the head along the lip of the intake side up by the valve cover.Wow.that was long.But yours will work also Scott.
Thanks,
Chris
 

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Ohio TCCoA
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863 Posts
Discussion Starter #12
Re: I have seen this.......

LX-Tasy said:

A 99 5.4 with PI heads at the salvage yard.Then I saw another 99 without them.You just have to look for that PI if you can see it.Look at the core motors most salvage yards have,you can usually get them for 350 complete.
Good luck,
Chris
Yeah I am not really sure if these "99" are pi's I will have to check middle of this week when I get back over there. These heads are 300 for the pair complete if anyone knows of any complete PI heads for less let me know.


later,
jay
 
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