Pi Heads Vs Ported Stock Heads

ace1_15 · 09-19-2006, 06:19 PM

Which is more economical, best results, and most reliable?

spike_africa · 09-19-2006, 06:42 PM

PI heads hands down. You can get them used for as little as 200each i have seen them go on for sale sections of websites.

Saleen S330 · 09-20-2006, 03:38 AM

Quote:

Originally Posted by spike_africa

PI heads hands down. You can get them used for as little as 200each i have seen them go on for sale sections of websites.

+1. The stock heads ported would probably flow about the same as PI's but after .500 the stockers would out flow the PI's. before i bought my ported heads, people wanted to charged me around 800-1500 just to port my heads, so i bought ported heads for 1300 and sold my PI heads for 200 to make up for some of the cost.

*Randy Stinchcomb* · 09-20-2006, 05:01 AM

depends alot on the price and what you want the heads to-do, I've seen some pretty impressive #'s out of Steen Racing on ported non-Pi heads vs out of the box PI heads. now ported Pi vs ported non-Pi, thats another story and alot more $$ but they both can make HP.

DropTopPony · 09-20-2006, 08:15 AM

What is it that you want to do? If you plan on adding a supercharger then the compression bump from the PI's isn't so great for that. I have seen ported NPI's from Renegade Racing that flow as well as St2 ported PI's but it is expensive...thats why i jumped on a deal for some used VTst2 heads instead of sending my NPI's out.
There is power to be had from both heads but a cheap set of stock PI's with the PI cams/intake will make a nice difference compared to the stock NPI setup.

98-GT · 09-20-2006, 08:35 PM

I heard that after market cams wont fit on non pi heads. so if you plan on cam then pi should be the way to go.

WaterDR · 09-20-2006, 08:38 PM

Do you need a set of heads??? Stock, used PI ones, I mean?

09-19-2006, 06:19 PM	#1 (permalink)
ace1_15 Junior Member Join Date: May 2006 Posts: 9	Pi Heads Vs Ported Stock Heads Which is more economical, best results, and most reliable?

09-19-2006, 06:42 PM	#2 (permalink)
spike_africa Administrator Join Date: Sep 2004 Location: Orlando,Florida Posts: 7,142	PI heads hands down. You can get them used for as little as 200each i have seen them go on for sale sections of websites. __________________ Dustin 2002 GT Mustang 5-Speed Drag Radials,Sprayed,Powershifted WOOO HOOOO!

09-20-2006, 05:01 AM	#4 (permalink)
Randy Stinchcomb Super Moderator Join Date: Aug 2005 Location: Randallstown, Md Posts: 2,616	depends alot on the price and what you want the heads to-do, I've seen some pretty impressive #'s out of Steen Racing on ported non-Pi heads vs out of the box PI heads. now ported Pi vs ported non-Pi, thats another story and alot more $$ but they both can make HP. __________________ Randy Stinchcomb contact info: Liberty Ford of Baltimore 410-655-2000 parts ext 5618 like to fish visit us at www.sportfisherman.com need fishing tackle www.binnacletackle.com

09-20-2006, 08:15 AM	#5 (permalink)
DropTopPony Junior Member Join Date: Sep 2006 Location: South Jersey Posts: 18	What is it that you want to do? If you plan on adding a supercharger then the compression bump from the PI's isn't so great for that. I have seen ported NPI's from Renegade Racing that flow as well as St2 ported PI's but it is expensive...thats why i jumped on a deal for some used VTst2 heads instead of sending my NPI's out. There is power to be had from both heads but a cheap set of stock PI's with the PI cams/intake will make a nice difference compared to the stock NPI setup. __________________ Bob 96 GT Vert http://www.cardomain.com/id/droptoppony < My Cardomain

09-20-2006, 08:38 PM	#7 (permalink)
WaterDR Administrator Join Date: Sep 2004 Posts: 6,366	Do you need a set of heads??? Stock, used PI ones, I mean? __________________ Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump My Car My Email

09-20-2006, 08:35 PM	#6 (permalink)
98-GT Member Join Date: Jan 2006 Location: New Jersey Posts: 56	I heard that after market cams wont fit on non pi heads. so if you plan on cam then pi should be the way to go.

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