PI question!!

GMSMOKR · Apr 3, 2015

Ok Fella's and Ladies..Quick question..I have guy that live in my area that I caught up with on the streets, He just got a 1996 Mustang Coupe a few weeks ago...And he is clueless..I took a look at the Motor and I noticed that it didn't have the same Intake Manifold..It had the PI Intake ..Of course with the Alminum Crossover..My question is One..The motor got to have the PI heads right? or can it be used on NPI Heads as well..And Two.. How can I tell if its a New Edge Motor vs the 1996-1998 SN Motor.. Ex: Vin Plates? Something other then the Upgraded PI Intake Maifold..I've only came up with it can be used on 1996-1998 4.6L engines with PI Heads, with additional parts and modifications...
1.AM says it can be used with NPI...
2.Steeda says with PI heads...
I'm to the point I just want to know from the Engine Vin or Something more solid.
I've also read that If you do some Modifications to the motor..Like relocate the heater hose under the Intake Plenum for clearance and a few other you can use that PI on a NPI motor...The guy Jake will be soon joining the site as well.

Thx

talltim · Apr 3, 2015

I ran a PI intake and cams on my 96 4.6 for a while. The also made a NPI intake with the aluminum crossover as a replacement I think.

lwarrior1016 · Apr 3, 2015

There is a NPI with aluminum crossover. The PI intake CAN be used on npi heads. In fact it is a very common upgrade. You can look at the part number on the side of the heads down by the exhaust manifold. The npi heads will have a part number, 96 I think had F5 part number, and I think the PI heads say pi on them.

GMSMOKR · Apr 3, 2015

I looked at the Heater hose under the intake.. And it is not in the center of the block like the Npi intake.. It's like the PI's 4.6.. So now the question is has it been modded to fit the PI intake or is it a different motor all together? Other then the intake.. How can I tell? A motor tag or something?

lwarrior1016 · Apr 3, 2015

GMSMOKR said:
I looked at the Heater hose under the intake.. And it is not in the center of the block like the Npi intake.. It's like the PI's 4.6.. So now the question is has it been modded to fit the PI intake or is it a different motor all together? Other then the intake.. How can I tell? A motor tag or something?

That heater tube gets changed when you do the pi intake swap. You can check the part number on the heads and that'll tell you if it has npi heads, and you can pretty much bank on the fact that if it has npi heads it is an npi engine. Now as far as the block is concerned, I don't know if there is a casting number on them.

lwarrior1016 · Apr 3, 2015

Compression would go way too low if you npi head swapped a pi rotating assembly lol

GMSMOKR · Apr 3, 2015

lwarrior1016 said:
That heater tube gets changed when you do the pi intake swap. You can check the part number on the heads and that'll tell you if it has npi heads, and you can pretty much bank on the fact that if it has npi heads it is an npi engine. Now as far as the block is concerned, I don't know if there is a casting number on them.

thx bro.. Where is that part number on the heads? And what type of number is it? The year of the heads? Or what..

?

DropTopPony · Apr 3, 2015

post # 3

GMSMOKR · Apr 3, 2015

lwarrior1016 said:
There is a NPI with aluminum crossover. The PI intake CAN be used on npi heads. In fact it is a very common upgrade. You can look at the part number on the side of the heads down by the exhaust manifold. The npi heads will have a part number, 96 I think had F5 part number, and I think the PI heads say pi on them.

Ok..Got it..They are NPI...Thanks again :thumbsup:

lwarrior1016 · Apr 3, 2015

Yup, that's it. Looks like you have npi heads with the pi intake. Not a bad combo.

GMSMOKR · Apr 3, 2015

lwarrior1016 said:
Yup, that's it. Looks like you have npi heads with the pi intake. Not a bad combo.

Lmao.. Thx.. Lol But it's not mine.. It's a soon to be members ride..

DropTopPony · Apr 3, 2015

Here is a nifty picture to help you distinguish between Intakes.

On the PI Intake the first runner goes to the Driver side.

On the NPI the first runner goes to the Passenger side.

This is the only way I know to visually check. It may not be true if it is a Dorman Intake though.

96blak54 · Apr 4, 2015

Good info

GMSMOKR · Apr 4, 2015

Yeah.. It's without doubt a PI intake Manifold.. Just seems pointless/ extra work without the Cam and Heads..Maybe this is what the previous owner did to it then.
http://youtu.be/Q3aTGbuCMQg

lwarrior1016 · Apr 4, 2015

Its really not a lot of work at all to do the manifold swap. You should be able to get everything apart in about 20 minutes. Change the heater tube in the valley, then the rest installs the same way. The only difference is the rtv for the coolant ports, if you don't let that set and seal up real good, you will have leaks. Ask me how i know lol.

GMSMOKR · Apr 4, 2015

Lmao.. What's the benefits with the PI intake .. Vs the upgraded NPI intake...

DropTopPony · Apr 4, 2015

GMSMOKR said:
Lmao.. What's the benefits with the PI intake .. Vs the upgraded NPI intake...

@15 rwhp and power won't fall flat on its face at 4500rpms

Most will swap in the PI cams when they do the PI Intake also. Together you get a nice @25-30 rwhp for not a lot of money. Really wakes the NPI up.

96blak54 · Apr 4, 2015

These guys provide excellent tech!
If one goes as far to swap out cams, ...heck the engine has to be torn down in the same manner,...might as well swap pi heads too!