Heads on a PI motor..

Reply Subscribe

Thread Tools

Search this Thread

08-29-2006, 04:57 PM

avlon06

5th Gear Member

Thread Starter

Join Date: Mar 2006

Location: Dallas

Posts: 2,530

Heads on a PI motor..

Will changing the heads to aftermarket heads on my PI motor help me as much as a NPI motor changing his heads to ours?

08-29-2006, 05:28 PM

redass02gt

EXTREME Moderation

Join Date: Apr 2005

Location: BLAM-O

Posts: 7,895

RE: Heads on a PI motor..

there's no aftermarket heads for a 4.6 unless I missed the memo. just worked factory heads.

08-29-2006, 05:39 PM

gt96stang

5th Gear Member

Join Date: Mar 2005

Location: Navarre, FL

Posts: 3,689

RE: Heads on a PI motor..

Quote:

ORIGINAL: redass02gt

there's no aftermarket heads for a 4.6 unless I missed the memo. just worked factory heads.

Yup, just worked over PI heads... Port and Polish, larger valves...

08-29-2006, 06:05 PM

03GTGreen

2nd Gear Member

Join Date: Oct 2005

Location: Illinois

Posts: 356

RE: Heads on a PI motor..

+1 There all the same Romeo PI heads you have in your car, just ported. So, your best bet would be just to port your heads. DSS Racing, Livernois, or Fox Lake would be your best bet, if you wanted to buy a pair of ported heads.

08-29-2006, 06:25 PM

03sonicgt

5th Gear Member

Join Date: Oct 2005

Location: Berkley, Michigan

Posts: 2,751

RE: Heads on a PI motor..

If I ever touch the heads, I would only get them ported and polished.

08-30-2006, 04:05 AM

avlon06

5th Gear Member

Thread Starter

Join Date: Mar 2006

Location: Dallas

Posts: 2,530

RE: Heads on a PI motor..

would that give me any hp?

08-30-2006, 10:07 AM

sweet99

4th Gear Member

Join Date: Jun 2006

Location: New York

Posts: 1,178

RE: Heads on a PI motor..

If you do a search for patriot heads there are links to articles where a good amount of HP was gained with the heads and cams. It seemed to be quite a job though and they recommended removing the motor to do the head change. I'd put the cash towards a SC myself. Mark