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Author
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Topic: How Do you ID Junkyard GT40 heads?
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Rustang351c
Journeyman Posts: 45
From: Watkinsville, GA, USA
Registered: Jun 2001
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posted 02-01-2003 11:42 AM
   
Are they on all V8 explorers of a certain year range? What other vehicles might they be on, and that years? Is there a code on the car or motor to give it away?
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Moneymaker
Administrator Posts: 21725
From: Lyons, IL, USA
Registered: May 99
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posted 02-01-2003 12:31 PM
Exploders have GT-40 "P" heads.
Only Cobra's and Lightnings have GT-40 heads.
Simplest way to identify either is the intake valve size is 1.85 on all of them.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00,'01,'02,&'03
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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cobravenom71
Gearhead Posts: 831
From: Kissimee, Fl USA
Registered: Aug 2002
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posted 02-01-2003 01:52 PM
What is the difference between the GT-40 'P' heads and the regular GT-40 heads?
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Bloose
Gearhead Posts: 295
From: Milwaukee, WI
Registered: Dec 2001
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posted 02-01-2003 06:08 PM
I think the plug angle is a bit different. Making it nessesary to use special headers. SOmeone correct me if I'm wrong.B-loose
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capri man
Gearhead Posts: 4320
From: doerun, ga.
Registered: Nov 2000
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posted 02-01-2003 08:15 PM
the gt40-p heads have 4 slash marks (lines) on the end of the head. they also have gt40-p stamped by the 1st plug hole. they do require special headers because of the plug placement. the flow very similar to the gt40 heads. here is a great article on them.http://www.geocities.com/MotorCity/Pit/5755/gt40p.html ------------------
mike r
racing is real
everything else is just a game.
81 capri-7.51 @89mph 1/8
1.54 60 ft.
http://prestage.com/site/site_display.asp?SiteID=141
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JCQuinn@work
Gearhead Posts: 542
From: Lakewood, CO, USA
Registered: Jun 2001
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posted 02-02-2003 01:19 AM
The GT40 head was used in the 96 and early 97 Exploders. I have a pair of them that came off an Exploder.The main difference is the plug placement. -P heads will not accept regular headers. John
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