Factory Headers On Gt40p Heads

RedGT88

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Jan 7, 2014

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Jan 22, 2014

#1

• Jan 22, 2014

• #1

I just bought myself a 99 Explorer motor to rebuild and I know this rebuild is gonna hurt my wallet. So I was wondering will the factory mustang headers work with the gt40p heads?

 

Grabbin' Asphalt

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Jan 22, 2014

#2

• Jan 22, 2014

• #2

Pretty sure you have to buy "P" headers because of the spark plug angle.

 

madspeed

Colonel Mustard

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Jan 22, 2014

#3

• Jan 22, 2014

• #3

Your factory headers wont work as mentioned due to the revised plug angles. Ford did make p head specific shorties, but at that point you might as well upgrade. I used to run MAC equal lengths with 90 degree plug boots with no issues. Ther are other shorties that will work, but i dont recall which off hand.

 

RangerJoe

I leave the horn on while driving

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Jan 23, 2014

#4

• Jan 23, 2014

• #4

I saw a thread a year or so ago where someone made them work. But it took so much bangin and dinging, the headers looked like a twisted driveshaft by the time they were done. What about using the Explorer exhaust?

Joe

 

RedGT88

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Jan 23, 2014

#5

• Jan 23, 2014

• #5

View attachment 182130Way to restrictive and they look like crap. I considered getting mac equal length, but ill probably go with bbk unequals for cost and simplicity.

 

madspeed

Colonel Mustard

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Jan 23, 2014

#6

• Jan 23, 2014

• #6

and ugly as fck

 

ReefBlueHatch

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Jan 23, 2014

#7

• Jan 23, 2014

• #7

I highly recommend the FRPP headers - awesome quality and great fitment. I found a set barley used on CL for $150 from a guy who did a turbo swap.

 

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krazedstang

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Streamwood

Jan 24, 2014

#8

• Jan 24, 2014

• #8

CL is the way to go I bought my BBK equal length headers on there for $80

 

stykthyn

I want to measure mine. It doesn't look that tall.

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Jan 24, 2014

#9

• Jan 24, 2014

• #9

FRPP headers are p friendly. Dont quote me but I believe that BBK shorties are as well.

 

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mikestang63

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Aug 27, 2012

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Jan 24, 2014

#10

• Jan 24, 2014

• #10

stykthyn said:

FRPP headers are p friendly. Dont quote me but I believe that BBK shorties are as well.

Click to expand...

Correctomundo Sir.

 

Chuckman

GTFO you fat, heavy bastard

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Jan 24, 2014

#11

• Jan 24, 2014

• #11

stykthyn said:

FRPP headers are p friendly. Dont quote me but I believe that BBK shorties are as well.

Click to expand...

they are, but just barely. need 90 degree plug boots and boot protectors. and if you gotta change plugs, you gotta pull the header. they do work though, just not ideal.

 

Grabbin' Asphalt

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Jan 24, 2014

#12

• Jan 24, 2014

• #12

Oriellys has the smaller splug boots and they stay on the plug good, mine work great, not one issue with them.

 

rdharper02

like kicking myself in the junk

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Jan 25, 2014

#13

• Jan 25, 2014

• #13

I ran BBK shortys on my P heads. It required shorty plugs, but I don't believe I needed the 90 degree boots (still have them in a package in the garage). I can't remember the plugs, but one of the GT40 info sites has the part number. It saved me from buying the overpriced plugs from Accel. BBKs are easy to find use, but know that changing the plugs will still be a PITA. I sold the car before needing to change them out, but knew the Trick Flow socket was going to help.

 

RedGT88

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Jan 25, 2014

#14

• Jan 25, 2014

• #14

I heard the only issue with non p headers is on cylinder #7. When you need to remove the plug I've heard you can take a spark plug socket cut off about 3/4" and take out the rubber and it will work for #7 plug. Has any one heard of that or used it?

 

Chuckman

GTFO you fat, heavy bastard

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Jan 26, 2014

#15

• Jan 26, 2014

• #15

RedGT88 said:

I heard the only issue with non p headers is on cylinder #7. When you need to remove the plug I've heard you can take a spark plug socket cut off about 3/4" and take out the rubber and it will work for #7 plug. Has any one heard of that or used it?

Click to expand...

At least in my case, it's not just #7, but also #6. There's just not much room there, and I kept burning wires (or having one pop off) on those plugs until i put boot protectors on it. As far as a socket goes, maybe it would work, havent tried it, I usually just take the header off. Fwiw, the drivers side and 5 and 8 are easier to get to. In the end though if I didnt already have the bbks I would have gotten the frpps, and the only reason im running the p heads is because I crashed the valves in a set of wedge heads and putting the explorer engine in was way cheaper than a rebuild