Lt's on gt40p heads

Smirnoff · August 29th, 2008, 12:29 AM

i just picked up a set of gt40p heads off of a mountaineer in the local junkyard and was looking to buy some longtubes soon. im wondering what ones will work with the p heads

1slo5.0 · August 29th, 2008, 08:51 AM

Standard unequal length shorty headers won't work because of the GT40P spark plug location. MAC offers a coated GT40P-specific shorty and Ford Racing offers a set of stainless shorties that work. Stock Mustang headers work also. Most equal length shorties will not work. BBK equal length shorty headers have been known to fit. MAC, Hedman and BBK full length 1 5/8" headers fit. Some full length headers require minor clearancing on some primary tubes but is not a big issue. Spark plug wires with 90 degree boots are recommended with all headers.

August 29th, 2008, 12:29 AM	#1
Smirnoff Enthusiast 1982 GT t-top no proof of purchase Join Date: May 2008 Location: N.E.PA Posts: 717 iTrader: 0 reviews	Lt's on gt40p heads i just picked up a set of gt40p heads off of a mountaineer in the local junkyard and was looking to buy some longtubes soon. im wondering what ones will work with the p heads

August 29th, 2008, 08:51 AM	#2
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	Standard unequal length shorty headers won't work because of the GT40P spark plug location. MAC offers a coated GT40P-specific shorty and Ford Racing offers a set of stainless shorties that work. Stock Mustang headers work also. Most equal length shorties will not work. BBK equal length shorty headers have been known to fit. MAC, Hedman and BBK full length 1 5/8" headers fit. Some full length headers require minor clearancing on some primary tubes but is not a big issue. Spark plug wires with 90 degree boots are recommended with all headers. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

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