Exhaust for GT40 Heads

kshmny925 · 07-30-2006, 07:43 PM

I just bought some gt 40 heads for my 95 gt that i havent installed and ive heard that the stock exhasut wont fit? but i have my old stock headers here and they bolt up just fine. so i was wondering what part of the exhaust wont fit??? or does it fit??

9FASTANG5 · 07-31-2006, 05:47 AM

The stock exhaust will fit; but you will not unlock the head potential exhaling through those pinched stock headers.

spike_africa · 07-31-2006, 06:38 AM

I thought they only dont fit gt40x heads?

cobra1923 · 07-31-2006, 07:02 AM

If they are the stock type of GT40s for the Mustang, they'll be fine. The GT40-P heads (from Explorers) have a different shape exhaust port that requires different headers.

cobra1923 · 07-31-2006, 07:05 AM

:bash: I think you might be correct about the GT40X heads also...but if you're putting stock headers on a gt40X head....:bash: ..then you need help

cobra1923 · 07-31-2006, 07:07 AM

You'll know if you have the GT40P heads, the bolt holes won't line up.

kshmny925 · 07-31-2006, 08:40 AM

well the headers im using are on the car so i fitted the stock ones i had laying around. these heads arent the gt40p. i guess i dont need new headers?

nitrousstang88 · 08-13-2006, 07:06 PM

the only problem with running gt40 p heads is that the last spark plug on the passengers side will be to close to the header so you will not be able to fit the spark plug boot on

07-30-2006, 07:43 PM	#1 (permalink)
kshmny925 95 GT 5.0 Join Date: Jan 2006 Location: FL Posts: 47	Exhaust for GT40 Heads I just bought some gt 40 heads for my 95 gt that i havent installed and ive heard that the stock exhasut wont fit? but i have my old stock headers here and they bolt up just fine. so i was wondering what part of the exhaust wont fit??? or does it fit??

07-31-2006, 05:47 AM	#2 (permalink)
9FASTANG5 Member Join Date: Feb 2006 Posts: 53	The stock exhaust will fit; but you will not unlock the head potential exhaling through those pinched stock headers. __________________ Taryn '95 GT

07-31-2006, 06:38 AM	#3 (permalink)
spike_africa Administrator Join Date: Sep 2004 Location: Orlando,Florida Posts: 7,376	I thought they only dont fit gt40x heads? __________________ Dustin 2002 GT Mustang 5-Speed Drag Radials,Sprayed,Powershifted WOOO HOOOO!

07-31-2006, 07:02 AM	#4 (permalink)
cobra1923 Senior Member Join Date: Nov 2004 Location: Baltimore Posts: 581	If they are the stock type of GT40s for the Mustang, they'll be fine. The GT40-P heads (from Explorers) have a different shape exhaust port that requires different headers. __________________ 2003 10th Anniversary Cobra Convertible All Stock and staying that way... well maybe some pipes since it's so quiet..ahhhh! it's a sickness 1995 mustang GT vert - all black (almost back together)

07-31-2006, 07:05 AM	#5 (permalink)
cobra1923 Senior Member Join Date: Nov 2004 Location: Baltimore Posts: 581	:bash: I think you might be correct about the GT40X heads also...but if you're putting stock headers on a gt40X head....:bash: ..then you need help __________________ 2003 10th Anniversary Cobra Convertible All Stock and staying that way... well maybe some pipes since it's so quiet..ahhhh! it's a sickness 1995 mustang GT vert - all black (almost back together)

07-31-2006, 07:07 AM	#6 (permalink)
cobra1923 Senior Member Join Date: Nov 2004 Location: Baltimore Posts: 581	You'll know if you have the GT40P heads, the bolt holes won't line up. __________________ 2003 10th Anniversary Cobra Convertible All Stock and staying that way... well maybe some pipes since it's so quiet..ahhhh! it's a sickness 1995 mustang GT vert - all black (almost back together)

07-31-2006, 08:40 AM	#7 (permalink)
kshmny925 95 GT 5.0 Join Date: Jan 2006 Location: FL Posts: 47	well the headers im using are on the car so i fitted the stock ones i had laying around. these heads arent the gt40p. i guess i dont need new headers?

08-13-2006, 07:06 PM	#8 (permalink)
nitrousstang88 Junior Member Join Date: Aug 2006 Location: massachusetts Posts: 6	the only problem with running gt40 p heads is that the last spark plug on the passengers side will be to close to the header so you will not be able to fit the spark plug boot on

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
2005-2007 GT engine in a 99-04 body	Silver2kGT	Modular 4.6L Tech	11	10-05-2006 09:58 AM
Armor all	1982 mustang 5.0	Show, Shine, and Tunes!	12	05-08-2006 10:26 PM
Cold Air Intakes	whitethunder46	Modular 4.6L Tech	32	01-05-2006 12:54 PM
Nitrous or LT headers	Christian's02GT	Modular 4.6L Tech	23	06-01-2005 03:33 PM
Is/Does MT sell Autometer Gauges?	Ponyman460	AmericanMuscle	12	05-30-2005 08:19 PM