• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

Need help with GT40P or GT40 Heads

  • Thread starter Thread starter jamesharper2
  • Start date Start date Apr 1, 2011
J

jamesharper2

New Member
Feb 14, 2011
1
0
0
Apr 1, 2011
#1
  • Apr 1, 2011
  • #1
Hey all!

Got some questions about swapping out gt40/p heads and intake from an explorer/mountaineer onto a 94 mustang gt.

1. Is any other year better than the other? My buddy says I want to try and find the gt40 heads from a 95-96 explorer any help?

2. I know I need the intake as well, but since mine is a 94 is there any other mod work required? Iwill not be running the EGR and will be using the elbow that comes with the intakes.

3. I have read that some need new headers or plug wires. Mine has ford motorsports shorties on it now with the standard wires, will this be ok?

Thanks for the help.

Any thing else anyone can think of?
 

nmcgrawj

Advanced Member
Sep 28, 2003
3,651
4
68
Indianapolis, IN
Apr 2, 2011
#2
  • Apr 2, 2011
  • #2
There are millions (ok maybe thousands) of threads on the gt40 vs gt40p heads....

Google search....threads are here, corral.net, and tons of other mustang sites. SVTperformance.



I went with gt40p's...slightly higher compression, "improved" exhaust side....the only "down side" to make one consider the gt40's is the spark plug angle which affects the headers. But....my mac long tubes fit fine. Its close...but they fit.



Get a drink, and a snack....and start searching and reading and writing (you'll find so much u wont remember). It truly is the best way....years of info is 10 times better than a single present day thread.
 
You must log in or register to reply here.

Similar threads

X
Engine Brackets for Gt40 heads with ac and ps?
  • Xavierg208
  • Nov 14, 2025
  • Fox 5.0 Mustang Tech
Replies
9
Views
383
Fox 5.0 Mustang Tech Nov 16, 2025
limp
S
5.0 Rebuild
  • smittys7up
  • Nov 29, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
8
Views
556
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Dec 20, 2025
Noobz347
9
Engine Donor '00 Mountaineer meet '91 Fox
  • 91firecracker
  • May 11, 2026
  • Fox 5.0 Mustang Tech
  • 2 3
Replies
41
Views
859
Fox 5.0 Mustang Tech May 28, 2026
91firecracker
9
J
MEED HELP!! 86 mustang
  • Jacob0121
  • Jan 23, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
6
Views
333
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 25, 2026
CAMTWO1070
Gt40 e303 combo questions
  • 99mustanggt2018
  • Mar 30, 2025
  • 1994 - 1995 Specific Tech
Replies
2
Views
427
1994 - 1995 Specific Tech Mar 30, 2025
KRUISR
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -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?