• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-

So I just picked up some PI heads, what else do I need?

  • Thread starter Thread starter Robs96
  • Start date Start date Nov 5, 2007
R

Robs96

Member
Aug 29, 2006
131
1
16
Nov 5, 2007
#1
  • Nov 5, 2007
  • #1
I have just acquired some complete PI heads out of an 02 Crown Vic. I plan to let a machine shop port and polish them. I was not able to get the intake manifold since someone had already taken it. Aside from the obvious of needing a manifold, are there any other parts I will need to complete the swap, and will I need anything done to the computer? Can anyone recommend some cams? I will be trying to get over 300hp and will be adding some other things like headers but I don't want cams that are too radical as I still plan to drive this car often once completed. I am looking to hear from people that have done this before.

Also just to add, the PI heads I picked up are Romeo and my 96GT block is a Romeo.
 

Winters98GT

Whoop...whoop-whoop-whoop-whoop...GANGNAM STYLE!!!
Founding Member
Nov 29, 1999
5,520
1,291
224
H Town
Nov 5, 2007
#2
  • Nov 5, 2007
  • #2
Dont let your normal town, or city machine shop port your heads. Have somebody with modular head experience do them, and make sure you get a valve job. I'd go with oversize valves on the heads.. HP makes custom grinds, VT, Crower, Comp and others make great cams and have custom grinds. I'd go with either a stage 1 or 2 from any of them, talk to them if your not familiar with cam specs and have them reccommend a cam for the setup and desired results you want.
 

Winters98GT

Whoop...whoop-whoop-whoop-whoop...GANGNAM STYLE!!!
Founding Member
Nov 29, 1999
5,520
1,291
224
H Town
Nov 5, 2007
#3
  • Nov 5, 2007
  • #3
btw, talk to randy out at parkway ford, hes the man on headswaps. Ive dealt with him for about 6 years now and his knowledge, honesty, and parts service is top notch.
 

CobraRed_96_GT

Active Member
May 20, 2006
1,421
4
39
UCSD/La Jolla
Nov 5, 2007
#4
  • Nov 5, 2007
  • #4
300 is going to be a tough mark to get at w/out a power adder. Your going to need a coolant tube (rerouted) and nipple. A lot of gaskets for heads, intake, exhaust, timing chain covers, valve covers. Need a head changing kit, new thermostat and o-ring, heck; here:
http://forums.stangnet.com/showthread.php?t=717166
 

four six

Member
Jan 19, 2006
506
2
18
Hobart, IN
Nov 5, 2007
#5
  • Nov 5, 2007
  • #5
Stage 2 heads, stage 2 cams, LTs, and really really good tune if you want 300 hp
 

Winters98GT

Whoop...whoop-whoop-whoop-whoop...GANGNAM STYLE!!!
Founding Member
Nov 29, 1999
5,520
1,291
224
H Town
Nov 5, 2007
#6
  • Nov 5, 2007
  • #6
CobraRed_96_GT said:
300 is going to be a tough mark to get at w/out a power adder. Your going to need a coolant tube (rerouted) and nipple. A lot of gaskets for heads, intake, exhaust, timing chain covers, valve covers. Need a head changing kit, new thermostat and o-ring, heck; here:
http://forums.stangnet.com/showthread.php?t=717166
Click to expand...

are you talking about the coolant tube, or the heater tube in the valley of the block under the manifold?
 

CobraRed_96_GT

Active Member
May 20, 2006
1,421
4
39
UCSD/La Jolla
Nov 5, 2007
#7
  • Nov 5, 2007
  • #7
Winters98GT said:
are you talking about the coolant tube, or the heater tube in the valley of the block under the manifold?
Click to expand...

heater tube, sorry. coolant tube you'll need to tap into intake crossover
 
J

justinschmidt1

Member
Jun 15, 2005
349
0
16
Nov 6, 2007
#8
  • Nov 6, 2007
  • #8
You need to pickup a supercharger to make it run right. I would say vortech, procharger, kennebelle. Whichever one you want but you must understand that your car will not run right without one.
 

DTNODYA

Member
Dec 15, 2005
831
1
16
Nov 6, 2007
#9
  • Nov 6, 2007
  • #9
Some RTV
 

CobraRed_96_GT

Active Member
May 20, 2006
1,421
4
39
UCSD/La Jolla
Nov 6, 2007
#10
  • Nov 6, 2007
  • #10
justinschmidt1 said:
You need to pickup a supercharger to make it run right. I would say vortech, procharger, kennebelle. Whichever one you want but you must understand that your car will not run right without one.
Click to expand...

more like wont run right WITH one, a standard S/C w/out intercooler + 10.5:1 compression on 10-11 year old cast internals equal weird noises coming from engine
 
R

Robs96

Member
Aug 29, 2006
131
1
16
Nov 6, 2007
#11
  • Nov 6, 2007
  • #11
I was thinking of nos as a power adder, but, to be honest, I will probably just take the motor out when I do the head swap since I have almost 180k on it. Still rung strong though. I was also thinking of tossing some 4.10's in the back and a full exhaust. The question would be long or short tube headers? Also, do I need to do anything with the computer as far as tuning or should I go with a chip and if so, then which one? I really don't see it as being too terribly difficult to achieve 300 or so hp without the power adder though.
 

CobraRed_96_GT

Active Member
May 20, 2006
1,421
4
39
UCSD/La Jolla
Nov 6, 2007
#12
  • Nov 6, 2007
  • #12
Robs96 said:
I was thinking of nos as a power adder, but, to be honest, I will probably just take the motor out when I do the head swap since I have almost 180k on it. Still rung strong though. I was also thinking of tossing some 4.10's in the back and a full exhaust. The question would be long or short tube headers? Also, do I need to do anything with the computer as far as tuning or should I go with a chip and if so, then which one? I really don't see it as being too terribly difficult to achieve 300 or so hp without the power adder though.
Click to expand...

it will be harder than you think, and LongTubes or nothing. Im not even changing out the headers even with my heads off since i can't legally go LT's.
 

Winters98GT

Whoop...whoop-whoop-whoop-whoop...GANGNAM STYLE!!!
Founding Member
Nov 29, 1999
5,520
1,291
224
H Town
Nov 6, 2007
#13
  • Nov 6, 2007
  • #13
CRed,

EDITED, CobraRED, check your PM's bro
 

Winters98GT

Whoop...whoop-whoop-whoop-whoop...GANGNAM STYLE!!!
Founding Member
Nov 29, 1999
5,520
1,291
224
H Town
Nov 6, 2007
#14
  • Nov 6, 2007
  • #14
Robs96 said:
I was thinking of nos as a power adder, but, to be honest, I will probably just take the motor out when I do the head swap since I have almost 180k on it. Still rung strong though. I was also thinking of tossing some 4.10's in the back and a full exhaust. The question would be long or short tube headers? Also, do I need to do anything with the computer as far as tuning or should I go with a chip and if so, then which one? I really don't see it as being too terribly difficult to achieve 300 or so hp without the power adder though.
Click to expand...

Short tubes are worthless NA, not worth it. I had them on my P/P headswap car, not worth it.

As far as taking the motor out, thats up to you. I think its more work. Many people years back use to just pull them out real quick to do the headswap and it was somewhat of the norm.

You might want to be real careful on doing a headswap with that many miles. Ive done 2, one with 37,000 miles, the other with 118,000 miles. Cross your "T's" and Dot your "i's", and I would have it tuned before you go WOT on it with that many miles. Good luck doood.
 
R

Robs96

Member
Aug 29, 2006
131
1
16
Nov 7, 2007
#15
  • Nov 7, 2007
  • #15
Thats what I'm saying, I would take the motor out and rebuild the bottom end when I get the heads done so that I can save myself some heartache later on. My trans leaks too and probably could use replacement so I might just pull the motor and trans together. I am a very skilled mechanic (lol aren't we all) and there really isn't anything I can't do mechanically. I just have never done a PI head swap, hell, I never owned anything other than Z28's until just a few short years ago. I've fixed a lot of Stangs and other cars for side jobs. Now I have two Stang verts and I love 'em despite them not being as fast as any Z I ever owned . I just want more power and the swap will help, but I want to do it right. Forced induction seems to be the theme but I really don't want to step up to a s/c. I never really planned to do anything with my GT, that was, until these PI heads came available for the price of dirt. Any help is appreciated and thanks to all who responded.
 

old_blue

15 Year Member
Nov 3, 2003
1,783
282
124
Nov 7, 2007
#16
  • Nov 7, 2007
  • #16
how much is dirt these days?
 
You must log in or register to reply here.

Similar threads

1
Engine Motor swap from a 2003 Explorer
  • 1996mustang new
  • Oct 9, 2025
  • SN95 4.6L Mustang Tech
Replies
7
Views
601
SN95 4.6L Mustang Tech Oct 16, 2025
squeak93
What's your tow rig?
  • LILCBRA
  • May 31, 2026
  • Other Auto Tech
Replies
3
Views
136
Other Auto Tech May 31, 2026
LILCBRA
6
Hey all,I’m putting together a 302 for my 1968 Mustang and wanted to post the combo + some questions to make sure I’m not missing crucial
  • 68_Disgustang
  • Feb 22, 2026
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
4
Views
899
1965 - 1973 Classic Mustangs -General/Talk- Jun 20, 2026
gray owl
G
Motor given to me and I’d like to rebuild it what do I need to do
  • Creomod
  • Dec 14, 2024
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
6
Views
383
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Dec 16, 2024
AeroCoupe
SN95 Desktop 363 Engine Combination - Looking for input
  • WhiteCobra95
  • Sep 8, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
11
Views
1K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Oct 6, 2025
Habu135
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?