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98 gt head swap

  • Thread starter Thread starter Gardo
  • Start date Start date Dec 18, 2005
G

Gardo

New Member
Dec 18, 2005
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Dec 18, 2005
#1
  • Dec 18, 2005
  • #1
hey guys! new here! but I want to know if I can use the heads of a 2001 cobra into my 98 GT! Do I have to make a lot of modifications?
 

blackfang

Founding Member
Dec 17, 2001
1,290
1
39
Richmond, Va
Dec 19, 2005
#2
  • Dec 19, 2005
  • #2
Yes and you will need too many parts to make this work its cheaper just to get a crate motor.
 
G

Gardo

New Member
Dec 18, 2005
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Dec 19, 2005
#3
  • Dec 19, 2005
  • #3
tks for your help, guess I will make the swap with a 2001 GT
 
G

Gardo

New Member
Dec 18, 2005
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Dec 19, 2005
#4
  • Dec 19, 2005
  • #4
guess this is a very good deal
http://www.powerheads.com/headswap.html
 

whyask

New Member
Apr 4, 2005
735
1
0
Sacramento
Dec 19, 2005
#5
  • Dec 19, 2005
  • #5
go to
www.parkwayperformance.com
they have a kit for 1350.00 shipped its awsome,
have one from them now, got 62 hp of it after the dyno and tune.
 

mrvax

Stay thirsty my friends
Founding Member
Nov 29, 1999
5,225
3
79
SN Moderator: Orlando, Fl.
Dec 19, 2005
#6
  • Dec 19, 2005
  • #6
4v heads onto a 2v is more trouble than it's worth. Do the regular headswap.
 

blackfang

Founding Member
Dec 17, 2001
1,290
1
39
Richmond, Va
Dec 19, 2005
#7
  • Dec 19, 2005
  • #7
Actually you can have just as much if not more hp if you just did a PI cam swap and PI intake swap and port the NPI heads you have. That combo will make more hp than if you went with the PI headswap.

The PI heads only give you that extra 5-10 rwhp only because of the compressions bump. However the quench pad on the NPI heads are better for faster burns and the port design is better. Granted the exhaust ports suck, but thats what porting is for.

And here is why 4V heads on a 2V is more trouble than what its worth.
You will need the following; 4V heads/cams,secondary chains, intake, TB, 24lb injectors, harness, alternator, pistons(due to the compression increase to match) a crank (being the 4v regularly revs near 7k and flywheel as the GT is a 6 bolt and the cobras an 8 bolt and a tune.
 
G

Gardo

New Member
Dec 18, 2005
5
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0
Dec 19, 2005
#8
  • Dec 19, 2005
  • #8
I looks that the stage 2 of these guys is a better buy though. Is $1000 more but gives you 45 rwhp more... it gaves you Competition porting, competition valve job, Ferrea SS forged valves, 7000 rpm spring package, and best of all flow bench tested

http://www.powerheads.com/headswap.html
 

RandyStinchcomb

New Member
May 25, 2005
1,159
3
0
Randallstown, Md
Dec 19, 2005
#9
  • Dec 19, 2005
  • #9
Gardo said:
I looks that the stage 2 of these guys is a better buy though. Is $1000 more but gives you 45 rwhp more... it gaves you Competition porting, competition valve job, Ferrea SS forged valves, 7000 rpm spring package, and best of all flow bench tested

http://www.powerheads.com/headswap.html
Click to expand...

on a stock engine, thats a waste of $$$. first off, your not gunna' spin the stock short block over 6k, unles you like picking up all the broken pieces. second, your stock or stock PI intake wont flow enuff air to make a stage 2 (whatever that means) work on a stock engine. save your money, call Joe Charles at Parkway Ford and get the stock "PI" head swap kit
 

billfisher

Active Member
Jul 17, 2005
1,296
4
38
huntsville, AL
Dec 19, 2005
#10
  • Dec 19, 2005
  • #10
5.4 3v dude. only cost you white hairs. about 100,000 of them
 
G

Gardo

New Member
Dec 18, 2005
5
0
0
Dec 20, 2005
#11
  • Dec 20, 2005
  • #11
Men..... I dont know what to go. Still thinking on.
between
http://www.powerheads.com/headswap.html
or
www.parkwayperformance.com
 

tomustang

Psychotic Member
Founding Member
Jun 8, 2000
3,434
2
78
McLean Hospital
Dec 20, 2005
#12
  • Dec 20, 2005
  • #12
Gardo said:
Men..... I dont know what to go. Still thinking on.
between
http://www.powerheads.com/headswap.html
or
www.parkwayperformance.com
Click to expand...
I bought the parkway headswap kit for my 98 GT well worth it IMO, came complete, not problems and the only thing is had to do outside of the kit was to get a T fitting for the coolant sensors
 
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