PI intake require PI heads?

1GtUnV · May 17, 2005

I put a PI intake on my car back in the fall, and ive been reading up lately on the PI intake and many people/places are saying i HAVE to have the PI heads. Is this true, and how easy/how much would it be to swap those out if i must put them on?

01SN8K · May 17, 2005

the intake will work on non-pi heads but the intake ports are shaped differently. most ppl do the head and intake swap at the same time.

Gearbanger 101 · May 17, 2005

You can use a PI intake on non-PI heads. If you're running N/A, you could just as easily run a thick bead or RTV around all of the ports to ensure their seal. The '96-'98 guys as well as the T-Bird/Cougar guys have been doing this for a while now with great results. If forced induction is in your future, I'd suggest buying a set of adapter plates. Livernois sells them with their intake kit, but I've seen the on Ebay advertised before for less.

http://www.livernoismotorsports.com/product.phtml?p=457&large=1

mr. jones1 · May 17, 2005

take a look at my plates and web site.
www.unitedmajority.com
you can do this install for 1/2 the price of the livernois kit.
you can use your existing hardware, a new PI manifold with the alum. crossover $160-$192, gaskets and my plates to blend the ports.
many here have done it. I have 7 sets left then thats it.
I am running a PI manifold, plates and a vortech and its working great.

COramprat · May 17, 2005

If your car is 99+ yes you have the PI intake and heads already. The 96-98 cars are the ones that were so lucky to get the crappy flowing intake and heads. There is a misconception with some newer (99-04) Mustang owners that the PI intake is an upgrade...these years already have the PI stuff.

1GtUnV · May 17, 2005

Ok, also would the P code that reads "Egr flow excessive at idle" be caused by the PI intake?

bdcardinal · May 17, 2005

1GtUnV said:
Ok, also would the P code that reads "Egr flow excessive at idle" be caused by the PI intake?

no it shouldnt be. there arent any EGR passages in the intake manifold. just in the upper plenum. might be the DPFE sensor.

DropTopPony · May 17, 2005

1GtUnV said:
I put a PI intake on my car back in the fall, and ive been reading up lately on the PI intake and many people/places are saying i HAVE to have the PI heads. Is this true, and how easy/how much would it be to swap those out if i must put them on?

am i reading this right, you already have a pi intake installed on non pi heads? If i'm reading it right then you answered your own question by doing it without pi heads.

you can add the pi cams for a nice gain without the expense of buying the pi heads.

1GtUnV · May 18, 2005

Yes you are correct i swapped the Intake a while back but i was just concerned after reading up more on this. Mainly ive been reading up lately because i have been contemplating doing the PI head swap, or possibly doing a head swap and a Cam swap. If i do what would these require/how much? Anyone have numbers?

streetstang03 · May 18, 2005

do the head swap and add some VT stage I cams. you might as well do the cam swap while you have the motor apart.

do some research at www.modulardepot.com or www.modularpowerhouse.com

DropTopPony · May 18, 2005

streetstang03 said:
do the head swap and add some VT stage I cams. you might as well do the cam swap while you have the motor apart.

do some research at www.modulardepot.com or www.modularpowerhouse.com

if your gonna take the time to swap the heads, vt stage 1 is a good cam to go with...get some springs too while your in there. maybe even go with a ported and polished pi head set if you can afford it! i'd estimate a p&p'd head with vt stage 1 at another 40-50 hp. definately worth it.

5spd GT · May 19, 2005

Where can one get P&P'ed PI heads? How much?

mr. jones1 · May 19, 2005

$1300
http://sites.reachtheworld.tv/waterNew/default.asp?T=505244&DID=1225

PI intake require PI heads?

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