GT-40 heads keep melting boots help!

trapwhizz88 · December 11th, 2006, 07:27 PM

I just put a set of gt-40 heads on my 1990 5.0 the headers are still stock. The passenger side is fine but on the driver side three of the four plug wire boots keep melting i have already put the nylon sheilds on or whatever and it didnt help umm some one told me that there are extenders that are made out of porcelin that make it so u dont have to plug the wire directly on the plug does ne one know what i am talking about and if so where can i find some my email is trapwhizz88@yahoo.com if u find ne thing thank u

Stangzilla · December 11th, 2006, 09:59 PM

They do make extenders. They are called Spark Arms. Never used them but they seem like a a good idea. I think they run about 40 bucks apiece or so

Mikes88 · December 12th, 2006, 08:31 PM

You should try getting larger headers due to the limited size ports. Causing your stock headers to get too hot.

Stangzilla · December 12th, 2006, 08:41 PM

Larger headers will not do anything. The exhaust gas temp for any good running 4 stroke engine is over 1000 degrees larger headers will not make the temp lower it will just put the hot pipe closer to the boots.

mikebert · December 13th, 2006, 10:01 PM

You have stock Fox body headers? Get headers designed for the P heads.

December 11th, 2006, 07:27 PM	#1
trapwhizz88 Look Ma! My First Post! Join Date: Dec 2006 Posts: 1	GT-40 heads keep melting boots help! I just put a set of gt-40 heads on my 1990 5.0 the headers are still stock. The passenger side is fine but on the driver side three of the four plug wire boots keep melting i have already put the nylon sheilds on or whatever and it didnt help umm some one told me that there are extenders that are made out of porcelin that make it so u dont have to plug the wire directly on the plug does ne one know what i am talking about and if so where can i find some my email is trapwhizz88@yahoo.com if u find ne thing thank u

December 12th, 2006, 08:41 PM	#4
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,020	Larger headers will not do anything. The exhaust gas temp for any good running 4 stroke engine is over 1000 degrees larger headers will not make the temp lower it will just put the hot pipe closer to the boots. __________________ Rotating The Earth 1320 Feet At A Time!! The very existence of flamethrowers proves that sometime, somewhere, someone said to themselves, “You know, I want to set those people over there on fire, but I’m just not close enough to get the job done.”

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December 11th, 2006, 09:59 PM	#2
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,020	They do make extenders. They are called Spark Arms. Never used them but they seem like a a good idea. I think they run about 40 bucks apiece or so

December 12th, 2006, 08:31 PM	#3
Mikes88 Newbie Join Date: Oct 2006 Posts: 24	You should try getting larger headers due to the limited size ports. Causing your stock headers to get too hot.

December 13th, 2006, 10:01 PM	#5
mikebert Enthusiast Join Date: Oct 2006 Location: Augusta, GA Posts: 906	You have stock Fox body headers? Get headers designed for the P heads.

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