gt40p headers

1BADSTANG · February 11th, 2008, 03:34 PM

I am getting a set of free gt40-p headers ported. I have long tubes on my stock heads, and an o/r h pipe and a mac catback. What headers can i buy that are cheap and will hook right up to my o/r h for long tubes? Is this possible? my long tubes are currently bbk. if that made sense lol

1BADSTANG · February 11th, 2008, 03:35 PM

also how much difference in sound and hp will these make?

ThreeHonks302 · February 11th, 2008, 05:16 PM

your BBK long tubes will work just fine... u just need to get special spark plug boots

Iwannagofast · February 11th, 2008, 06:49 PM

like he said the bbk's and most long tubes work on the gt40p heads

1BADSTANG · February 11th, 2008, 07:59 PM

what kind of spark plug boots? wow now im excited sweet!!! What are the specs on these heads? are they better than gt 40's? how much power should i except? what kind of intake manifold should i get to pair it up with? i have an e303 cam.. will it match up well?

87foxbodylx · February 11th, 2008, 08:06 PM

gt40-p heads are the more economical heads to go with since they have a smaller valve, and flow just as good as gt40's.the better velocity and revised spark plug position make for a cleaner burn and improved fuel economy. They are also pretty cheap. It depends what you want? most people who go for gt-40 heads are for power only

1BADSTANG · February 11th, 2008, 08:08 PM

well im getting the gt40p's ported for free. Let me know if anyone knows power increases, and what kind of spark plug boot i need

87foxbodylx · February 11th, 2008, 08:13 PM

Originally Posted by 1BADSTANG

well im getting the gt40p's ported for free. Let me know if anyone knows power increases, and what kind of spark plug boot i need

id say roughly 285? but since your getting them ported. maybe 325...but im not entirely sure. What type of cam?

1BADSTANG · February 11th, 2008, 08:17 PM

i have an ford abc E303 cam

. i dont have an intake manifold.. So i need someone or people to help me pick one out thats used or cheap, my uncle will help me clean it up if its used. I want 300 rwhp with the HCI when im done, so i hope thats accheiveable.

87foxbodylx · February 11th, 2008, 08:22 PM

Originally Posted by 1BADSTANG

i have an ford abc E303 cam . i dont have an intake manifold.. So i need someone or people to help me pick one out thats used or cheap, my uncle will help me clean it up if its used. I want 300 rwhp with the HCI when im done, so i hope thats accheiveable.

well i know with a 1.7 roller rocker and a mac p headers, you should be well over 300. I'm not sure, but i think the intake on the 98 ford explorers (v8 of course) will fit. I'm not entirely sure. Maybe Darrel can shed some light on it.

1BADSTANG · February 11th, 2008, 08:33 PM

hit me up darrel!! when you see this help me out

Tony_90fox · February 11th, 2008, 08:33 PM

If you get 300 HP with that setup, i would love to see a dyno sheet.

1BADSTANG · February 11th, 2008, 08:34 PM

Originally Posted by Tony_90fox

If you get 300 HP with that setup, i would love to see a dyno sheet.

are you doubting it?

Tony_90fox · February 11th, 2008, 08:35 PM

I have a similar combo and I know i am not pushing 300 to the wheels.

1BADSTANG · February 11th, 2008, 08:38 PM

well how do you know? How do you know its not just because your motor is worn? my motor got rebuilt 16k miles ago.. Do you know around where you are?

87foxbodylx · February 11th, 2008, 08:38 PM

Originally Posted by Tony_90fox

I have a similar combo and I know i am not pushing 300 to the wheels.

well, you do have a AOD.. that could be robbing some power from you

notchabovechevy · February 11th, 2008, 08:40 PM

StangPro.com - Ford's GT-40P Cylinder Head
some helpful info and just my input 275 280 at best

87foxbodylx · February 11th, 2008, 08:41 PM

Originally Posted by notchabovechevy

StangPro.com - Ford's GT-40P Cylinder Head
some helpful info and just my input 275 280 at best

very good tech info site notchabovechevy.. thats the exact site i was looking for since i lost it in my bookmarks.

notchabovechevy · February 11th, 2008, 08:41 PM

are you looking to buy or sell gt 40's?

notchabovechevy · February 11th, 2008, 08:46 PM

February 11th, 2008, 03:34 PM	#1
1BADSTANG Hardcore Enthusiast Join Date: Sep 2007 Location: long island Posts: 1,514	gt40p headers I am getting a set of free gt40-p headers ported. I have long tubes on my stock heads, and an o/r h pipe and a mac catback. What headers can i buy that are cheap and will hook right up to my o/r h for long tubes? Is this possible? my long tubes are currently bbk. if that made sense lol __________________ 331s burn oil and have a bad piston to head ratio. http://www.StreetChallenge3D.com/sig...?referal=1BAD1 LOL @ THIS http://www.ihateyoujulia.com/?id=0a8...27aa2c6245e4c2

February 11th, 2008, 03:35 PM	#2
1BADSTANG Hardcore Enthusiast Join Date: Sep 2007 Location: long island Posts: 1,514	also how much difference in sound and hp will these make? __________________ 331s burn oil and have a bad piston to head ratio. http://www.StreetChallenge3D.com/sig...?referal=1BAD1 LOL @ THIS http://www.ihateyoujulia.com/?id=0a8...27aa2c6245e4c2

February 11th, 2008, 07:59 PM	#5
1BADSTANG Hardcore Enthusiast Join Date: Sep 2007 Location: long island Posts: 1,514	what kind of spark plug boots? wow now im excited sweet!!! What are the specs on these heads? are they better than gt 40's? how much power should i except? what kind of intake manifold should i get to pair it up with? i have an e303 cam.. will it match up well? __________________ 331s burn oil and have a bad piston to head ratio. http://www.StreetChallenge3D.com/sig...?referal=1BAD1 LOL @ THIS http://www.ihateyoujulia.com/?id=0a8...27aa2c6245e4c2

February 11th, 2008, 08:06 PM	#6
87foxbodylx Enthusiast 1987 Mustang LX 13.9@102.43 Join Date: Oct 2006 Location: Ephrata PA Posts: 649	gt40-p heads are the more economical heads to go with since they have a smaller valve, and flow just as good as gt40's.the better velocity and revised spark plug position make for a cleaner burn and improved fuel economy. They are also pretty cheap. It depends what you want? most people who go for gt-40 heads are for power only __________________ HONDA: Hold on, Not done Accelerating A girl's legs are her best friends, but the best of friends must part. LIVE Tag- foxbody87

February 11th, 2008, 08:08 PM	#7
1BADSTANG Hardcore Enthusiast Join Date: Sep 2007 Location: long island Posts: 1,514	well im getting the gt40p's ported for free. Let me know if anyone knows power increases, and what kind of spark plug boot i need __________________ 331s burn oil and have a bad piston to head ratio. http://www.StreetChallenge3D.com/sig...?referal=1BAD1 LOL @ THIS http://www.ihateyoujulia.com/?id=0a8...27aa2c6245e4c2

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February 11th, 2008, 05:16 PM	#3
ThreeHonks302 Regular 1986 Mustang GT Join Date: Jan 2008 Location: Michigan Posts: 284	your BBK long tubes will work just fine... u just need to get special spark plug boots

February 11th, 2008, 06:49 PM	#4
Iwannagofast Hardcore Enthusiast 1990 Mustang GT 9.39@76.09----1/8th mile Join Date: Feb 2007 Location: Arkansas Posts: 1,829	like he said the bbk's and most long tubes work on the gt40p heads

February 11th, 2008, 08:17 PM	#9
1BADSTANG Hardcore Enthusiast Join Date: Sep 2007 Location: long island Posts: 1,514	i have an ford abc E303 cam . i dont have an intake manifold.. So i need someone or people to help me pick one out thats used or cheap, my uncle will help me clean it up if its used. I want 300 rwhp with the HCI when im done, so i hope thats accheiveable. __________________ 331s burn oil and have a bad piston to head ratio. http://www.StreetChallenge3D.com/sig...?referal=1BAD1 LOL @ THIS http://www.ihateyoujulia.com/?id=0a8...27aa2c6245e4c2

February 11th, 2008, 08:33 PM	#11
1BADSTANG Hardcore Enthusiast Join Date: Sep 2007 Location: long island Posts: 1,514	hit me up darrel!! when you see this help me out __________________ 331s burn oil and have a bad piston to head ratio. http://www.StreetChallenge3D.com/sig...?referal=1BAD1 LOL @ THIS http://www.ihateyoujulia.com/?id=0a8...27aa2c6245e4c2

February 11th, 2008, 08:38 PM	#15
1BADSTANG Hardcore Enthusiast Join Date: Sep 2007 Location: long island Posts: 1,514	well how do you know? How do you know its not just because your motor is worn? my motor got rebuilt 16k miles ago.. Do you know around where you are? __________________ 331s burn oil and have a bad piston to head ratio. http://www.StreetChallenge3D.com/sig...?referal=1BAD1 LOL @ THIS http://www.ihateyoujulia.com/?id=0a8...27aa2c6245e4c2

February 11th, 2008, 08:40 PM	#17
notchabovechevy Regular Join Date: Nov 2007 Location: South Carolina Posts: 398	StangPro.com - Ford's GT-40P Cylinder Head some helpful info and just my input 275 280 at best

February 11th, 2008, 08:41 PM	#19
notchabovechevy Regular Join Date: Nov 2007 Location: South Carolina Posts: 398	are you looking to buy or sell gt 40's?

February 11th, 2008, 08:46 PM	#20
notchabovechevy Regular Join Date: Nov 2007 Location: South Carolina Posts: 398

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