Tore Down the Motor Tonight, PICS!

[Drew1287]

A friend wrecked his car 01GT about 3 months ago and bought it back from salvage, I got his PI heads, intake, cams, everything for FREE so I decided to put them on tonight, well not really. This will be my project for the next few weeks, I had the afternoon off so I got it tore down. I need to order some thicker head gaskets and I will be reusing my comp cams in the PI heads, what kinda power gain should I see?

 

[Drew1287]

Also,What thickeness cometic head gasket should I get and how much do they usually run and where can I get them?

 

[GinoGT]

Why do you need to use thicker gaskets, are you trying to offset the compression gain you get with the PI swap? If so, why? Ford's gaskets are fine.

I believe an NPI GT with the PI swap (and no other mods) puts down a couple RWHP more than a stock PI GT, probably because of the slightly higher compression.

I say send the PI heads out for a port and polish before you bolt them on.

Did you unbolt the passenger side cam gear before you took the pic?

 

[kirkyg]

How many miles were on the engine? Was there any real wear on the internals?

kirkyg

 

[geegee]

FRPP has a head change kit for 4.6L

p/n is M-6067-D46 (for PI head SOHC, '96-'02). Includes gaskets, fasteners, spacers and dipstick tube.

List is $119.

 

[Drew1287]

I have the vortech on my car and I am not sure if it will like the raised compression, although with my water injection it may make even more power. I did have the cam gears unbolted and the passenger side one is off the cam. I didnt have a puller to pull off the power steering pump pulley but I wanted to pull one head, but you cant.

 

[Turbo92PGT]

Send me the PI stuff and I'll let you know how much more power it made

Thats awesome, I wish I coudl do something like your car. We run the same times! I ran a 14.437 at 96 with O/R H, Cone Filter, and UDP's

 

[98GTX]

I have the vortech on my car and I am not sure if it will like the raised compression, although with my water injection it may make even more power. I did have the cam gears unbolted and the passenger side one is off the cam. I didnt have a puller to pull off the power steering pump pulley but I wanted to pull one head, but you cant.

Keep us posted. I did the headswap last summer and want some boost now, but am unsure if I can boost or not with this compression (about 10.5:1 now). Also, try searching the threads about which headgaskets to use- I think I remember reading about this. Good luck.

 

[kirkyg]

maybe 5-6 pounds would be ok with a conservative tune...but you should cut your compression down if your building your engine. Get some forged internals and lower compression to 8.4-8.5:1 and then you can do 20+ psi on pump gas.

kirkyg

 

[Drew1287]

What thickness head gasket should I use? I plan on boosting 10psi. I am not really sure where even to buy the gaskets since they dont have any purchase options on cometics website.

 

[turbokid]

how much gain is there after a decent pi head swap???

 

[who me]

I've read 40-50? depending on the mods.