gt40p spark plug question

R0B0T · May 25th, 2008, 11:19 PM

they say long tube headers wont work with the p's, is this because there's no room to change the spark plug once the headers are installed? i hope that's why, seeing as how you can buy specialty spark plug sockets for working in the crowded f body(camaro) engine compartments, and they would be easy enough to make at home.

i would like a set of gt40p's, but if they wont work with long tubes for some other reason, i'll go with gt40's.

anything else i should grab besides upper/lower intake and heads?

also, with a mild cam, how much difference will the 40's/p's make?
i have no clue of the exact cam.

e3sean · May 26th, 2008, 01:27 AM

i dont see why long tubes wouldnt work... the only reason that some headers wont work is cause the spark plug is angled and with most wires unless its a 90* elbow then some of the wires will touch the header.. to eliminate that problem u need to look for a header that will go out a few inches before it starts to turn down like some go stright from the head and immiadetly start turning down and some will go stright out about 2 inches before starting to turn. i am sure there are long tubes out there that will work just ask around.

1slo5.0 · May 26th, 2008, 02:24 AM

There are several long tube headers that will work with P heads.

R0B0T · May 26th, 2008, 11:56 AM

yes, but i already have a set of long tubes and im not sure what kind they are.

e3sean · May 26th, 2008, 01:25 PM

to they go out stright before they turn down or do the just statt turning down right away?

jrh_1980 · May 26th, 2008, 02:04 PM

If worse comes to worse, accel makes header plugs that have a shorter body. you may have to do some searching to get some but well worth it. had some trouble with the long tube headers i have and the angle of the plug coming out of my 65 289 heads. I used those plugs and they worked great. you would have to use a different part number than i did because the gt40 have 5/8 plugs.

DrHoward · May 26th, 2008, 02:10 PM

you should find out what kind of long tubes they are because there are a few sets that work with p heads

And those shorter spark plug sockets work well with them

R0B0T · May 26th, 2008, 03:15 PM

heres some pictures of my long tubes

R0B0T · May 27th, 2008, 10:30 AM

nobody can tell if these headers will work with gt40p's?

May 25th, 2008, 11:19 PM	#1
R0B0T Banned 12.8@103... stock motor 11.8@113...150 shot Join Date: Apr 2008 Posts: 464 iTrader: 0 reviews	gt40p spark plug question they say long tube headers wont work with the p's, is this because there's no room to change the spark plug once the headers are installed? i hope that's why, seeing as how you can buy specialty spark plug sockets for working in the crowded f body(camaro) engine compartments, and they would be easy enough to make at home. i would like a set of gt40p's, but if they wont work with long tubes for some other reason, i'll go with gt40's. anything else i should grab besides upper/lower intake and heads? also, with a mild cam, how much difference will the 40's/p's make? i have no clue of the exact cam.

May 26th, 2008, 01:27 AM	#2
e3sean I Post Entirely Way Too Much 1988 lx 9.68@142 Join Date: Nov 2007 Location: goldsboro NC Posts: 5,609 iTrader: 0 reviews	i dont see why long tubes wouldnt work... the only reason that some headers wont work is cause the spark plug is angled and with most wires unless its a 90* elbow then some of the wires will touch the header.. to eliminate that problem u need to look for a header that will go out a few inches before it starts to turn down like some go stright from the head and immiadetly start turning down and some will go stright out about 2 inches before starting to turn. i am sure there are long tubes out there that will work just ask around. __________________

May 26th, 2008, 02:24 AM	#3
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	There are several long tube headers that will work with P heads. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

May 26th, 2008, 01:25 PM	#5
e3sean I Post Entirely Way Too Much 1988 lx 9.68@142 Join Date: Nov 2007 Location: goldsboro NC Posts: 5,609 iTrader: 0 reviews	to they go out stright before they turn down or do the just statt turning down right away? __________________

May 26th, 2008, 02:10 PM	#7
DrHoward Newbie 1994 Mustang GT Join Date: Apr 2006 Location: Calgary Alberta Posts: 35 iTrader: 0 reviews	you should find out what kind of long tubes they are because there are a few sets that work with p heads And those shorter spark plug sockets work well with them __________________ 1994 Mustang GT HCI N2O yada yada yada http://www.cardomain.com/id/bigshirtlesspete

May 26th, 2008, 11:56 AM	#4
R0B0T Banned 12.8@103... stock motor 11.8@113...150 shot Join Date: Apr 2008 Posts: 464 iTrader: 0 reviews	yes, but i already have a set of long tubes and im not sure what kind they are.

May 26th, 2008, 02:04 PM	#6
jrh_1980 Regular 89 Mustang LX 7.90@90mph 8th Join Date: Feb 2008 Location: Macomb, Illinois Posts: 151 iTrader: 1 reviews	If worse comes to worse, accel makes header plugs that have a shorter body. you may have to do some searching to get some but well worth it. had some trouble with the long tube headers i have and the angle of the plug coming out of my 65 289 heads. I used those plugs and they worked great. you would have to use a different part number than i did because the gt40 have 5/8 plugs.

May 26th, 2008, 03:15 PM	#8
R0B0T Banned 12.8@103... stock motor 11.8@113...150 shot Join Date: Apr 2008 Posts: 464 iTrader: 0 reviews	heres some pictures of my long tubes

May 27th, 2008, 10:30 AM	#9
R0B0T Banned 12.8@103... stock motor 11.8@113...150 shot Join Date: Apr 2008 Posts: 464 iTrader: 0 reviews	nobody can tell if these headers will work with gt40p's?

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