head swap question?

WVSNS& · February 18th, 2006, 07:37 PM

When I get the GT-40 heads will the factory exhaust manifolds work or do I have to get some headers?

vfast · February 18th, 2006, 09:18 PM

no but I would make a swap to one's that flow better than stock

Twist 2 Go · February 19th, 2006, 10:00 AM

the stock ones don't work but if you search around, you will find some shorties that will fit both stock-type heads and the gt40's. This is a nice feature to have as if you ever decide to upgrade heads again, you can still use the same headers

fakesaleen · February 19th, 2006, 04:05 PM

they might fit if they are the gt40 heads from a 93 cobra but i'm not sure

1slo5.0 · February 20th, 2006, 07:37 AM

Stock everything will bolt up to them.

fakesaleen · February 20th, 2006, 10:04 AM

i know if they are the gt-40p heads you need special headers

1slo5.0 · February 20th, 2006, 02:49 PM

Originally Posted by fakesaleen

i know if they are the gt-40p heads you need special headers

Yes and no. I have seen guys get away with stock headers on P heads. I think they used a different spark plug though. I know they did something like that to make them work.

IcantDo55 · February 25th, 2006, 11:38 AM

So are these
GT-40's or GT-40P's?

The 40 fit stock everything
The 40P's only for P headers.

87vert · February 25th, 2006, 11:04 PM

Originally Posted by IcantDo55

So are these
GT-40's or GT-40P's?

The 40 fit stock everything
The 40P's only for P headers.

i think bbk longtubes will work with the p's

p's basicly have a differnt plug angle, usually end up right where the tube is so you'd never get a wire on there.

February 18th, 2006, 07:37 PM	#1
WVSNS& Regular 2001 Mustang Cobra Join Date: Dec 2005 Location: va beach Posts: 214 iTrader: 0 reviews	head swap question? When I get the GT-40 heads will the factory exhaust manifolds work or do I have to get some headers?

February 19th, 2006, 10:00 AM	#3
Twist 2 Go Hardcore Enthusiast Join Date: Aug 2005 Location: Chesapeake, Virginia Posts: 1,716 iTrader: 0 reviews	the stock ones don't work but if you search around, you will find some shorties that will fit both stock-type heads and the gt40's. This is a nice feature to have as if you ever decide to upgrade heads again, you can still use the same headers __________________ 88 Mustang Coupe 2006 FFW Richmond True Street Runner-Up www.rickscarcare.net

February 19th, 2006, 04:05 PM	#4
fakesaleen Enthusiast 1988 lx t-top Join Date: Feb 2006 Location: Port Huron, MI. Posts: 530 iTrader: 0 reviews	they might fit if they are the gt40 heads from a 93 cobra but i'm not sure __________________

February 20th, 2006, 07:37 AM	#5
1slo5.0 MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: North Fond du Lac, Wisconsin Posts: 11,375 iTrader: 1 reviews	Stock everything will bolt up to them. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

February 20th, 2006, 10:04 AM	#6
fakesaleen Enthusiast 1988 lx t-top Join Date: Feb 2006 Location: Port Huron, MI. Posts: 530 iTrader: 0 reviews	i know if they are the gt-40p heads you need special headers __________________

February 18th, 2006, 09:18 PM	#2
vfast Banned Join Date: Aug 2005 Location: shimmy shack takeout Posts: 1,092 iTrader: 0 reviews	no but I would make a swap to one's that flow better than stock

February 25th, 2006, 11:38 AM	#8
IcantDo55 Enthusiast Join Date: Aug 2005 Location: Va Beach VA Posts: 590 iTrader: 0 reviews	So are these GT-40's or GT-40P's? The 40 fit stock everything The 40P's only for P headers. __________________ -Mike Link to My Site Want to Play Some Pool??? Stroked and Blown!

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