Stupid question

94GTHO

Member

Jul 21, 2005

200

0

17

Richmond, Va

Jul 21, 2006

#1

• Jul 21, 2006

• #1

How do you tell if your heads are PI or not

 

94GTHO

Member

Jul 21, 2005

200

0

17

Richmond, Va

Jul 21, 2006

#2

• Jul 21, 2006

• #2

..........

 

B

bakos24

I find there is nothing better than a tasty wiener

Nov 29, 1999

4,461

87

134

NE, OH

Jul 21, 2006

#3

• Jul 21, 2006

• #3

99-04 stangs have PI heads.
94-98 I believe have non PI heads.

 

03ghoststang

Well-Known Member

Jul 16, 2005

1,930

1

57

Los Angeles, California

Jul 21, 2006

#4

• Jul 21, 2006

• #4

the intake ports on the heads are design differently on both NPI and PI

 

K

Kilgore Trout

Fried or Broiled ?

10 Year Member

Mar 30, 2005

4,749

95

134

Jul 21, 2006

#5

• Jul 21, 2006

• #5

There was a great thread the other day that had side by side pics of PI and NPI intake manifolds. I looked for it but I cannot find it...

 

Outlaw97GT

Member

Sep 10, 2005

234

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16

Redneckville, Tx

Jul 21, 2006

#6

• Jul 21, 2006

• #6

Kilgore Trout said:

There was a great thread the other day that had side by side pics of PI and NPI intake manifolds. I looked for it but I cannot find it...

Click to expand...

I still have the pics on my pc.....
View attachment 453965

PI intake, notice that the 1st runner is on the left side (driverside) , on right in pic..
View attachment 453967

NPI intake, notice the 1st runner on the right side ( pass. side) on left in pic.
View attachment 453969


But looking at the intake isnt always the way to tell if the heads are PI. Could be NPI heads with a PI intake.
Im not sure how to tell with them on the car, without taking off the intake to look at the ports.