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Headers for GT40P heads and Duff long radius arms

Jedeka

Contributor
Full Member
Joined
Oct 5, 2014
Messages
241
Is anyone running the GT40P heads and Duff long radius arms? If so, what are you running for exhaust? Any headers clear this setup? Thanks.
 

ngsd

Bronco Guru
Joined
Mar 2, 2019
Messages
2,546
Trans makes a difference. Dual ex or 2 into 1? I used the Duff 2 into 1 with their shorty (Drake) headers due to the AX15 conversion needing the clearance.
 

Timmy390

Contributor
Bronco Guru
Joined
Jan 1, 2011
Messages
5,632
Loc.
Conway, AR
With P heads I think the only option is BH shorties........

I don't recall anyone specifically posting they had P heads and long tube headers.

Tim
 

SteveL

Huge chevy guy
Joined
Jun 24, 2001
Messages
11,674
Loc.
Hawthorne ca
I heard bronco hut or bc headers for those heads. Also have heard 96 explorer heads have the plugs angled back like stock eb heads so most other headers should fit depending on what transmission you run. That was my dream to get the 96 heads to go with a lightning intake and later explorer efi on my spare 351w.
 

1badd73

Newbie
Joined
Dec 15, 2016
Messages
17
Bronco Hut (Sandersen) headers will definitely work with GT40P heads. I just bought a set for my 98 Explorer engine.
 

JohnJohn

Bronco Guru
Joined
May 6, 2005
Messages
2,157
Loc.
Richmond
Not sure if the GT40 P head is different from the heads on my two broncos but I am running angled plug heads on both broncos with Duff long tube headers and long arms. Dual exhaust also with no issues. Some long tube headers will contact the drivers long arm when it comes up. I had this issue with an unknown brand of long tube headers a previous owner installed. I swapped them for another set of Duff's long tube and have no issues.
HotRod.com wrote an interesting article on Long vs. Short headers on 302's and 351's.
https://www.hotrod.com/articles/ford-351w-dyno-test-shorty-versus-long-tube-headers/
 
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