Do i have a pi head...
#1
Do i have a pi head...
So i opened up the maintence manual for my car today, and i saw the last owner wrote everything down, and i stumbled across something that caught my eye.. the entire intake manifold was replaced at 30,000 miles in june of 1999, and so i started wondering..do i have a pi head? I took a pic of the aluminum cross over, and i had heard that that's a way to tell. is this true?
sorry if this is kind of a stupid question, i just never knew how to tell the difference haha
sorry if this is kind of a stupid question, i just never knew how to tell the difference haha
#5
Your engine probably still has the original heads. It's just the intakes on the earlier 4.6 engines had problems CRACKING and leaking anti-freeze. That's why there is aluminum where the coolant crosses over, instead of plastic. But you do have the UPGRADED Intake though.
Last edited by 03gt04mach1; 10-18-2011 at 04:51 PM.
#6
It's hard to tell from you picture but I have a picture of my PI intake and NPI side by side.
Do you see how the NPI intake (the one on the left) has a threaded hole on the coolant cross over above the thermostat housing? That is because the NPI intake has 2 coolant sensors/senders and the PI intake only has one (which is on the passenger side of the coolant passage.
Do you see how the NPI intake (the one on the left) has a threaded hole on the coolant cross over above the thermostat housing? That is because the NPI intake has 2 coolant sensors/senders and the PI intake only has one (which is on the passenger side of the coolant passage.
Thread
Thread Starter
Forum
Replies
Last Post
BacusJason02GT
Motor Swap Section
4
11-07-2014 02:51 PM