I've searched the bronco sites and cant seem to find which exhaust gasket folks are using with GT-40 heads and shorty headers from Bronco Hut. The gaskets that came with the headers only had 3k miles on them but like a fool I tossed them saying I'll just buy some more. I just got back from the main Napa hub and they could even find one to order, everything they brought out had the small ports 1.24W - 1.450 T I'm looking for 1.24W - 1.917 range. This shouldn't be this difficult especially since the heads are out of 1996 Explorer and was hoping to source them locally?
Anyone have a part number other than these which are the small port.
Felpro 1215 or 1415
Mr Gasket 5930
Remflex 3003
GT-40 Exhaust Gasket
- ZOSO
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Re: GT-40 Exhaust Gasket
tallest port I could find was 1.75". did you measure the ports on the heads to be sure they are 1.9" tall?
Rob
74 Ranger EFI351w, 4r70w, ARB 5.13 9in, ARB 5.13D44, and a bunch of other goodies. Best of all the family memories.
04 Mustang Cobra, KenneBell 2.2 feeding a lot of boost on E85. Tire shredding machine
New project: 77 Bronco Ranger, body work and more body work.
Very little left of a 72 durango tan explorer sport
74 Ranger EFI351w, 4r70w, ARB 5.13 9in, ARB 5.13D44, and a bunch of other goodies. Best of all the family memories.
04 Mustang Cobra, KenneBell 2.2 feeding a lot of boost on E85. Tire shredding machine
New project: 77 Bronco Ranger, body work and more body work.
Very little left of a 72 durango tan explorer sport
- Eck
- Official CCB Member

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Re: GT-40 Exhaust Gasket
If I am not mistaken-- Andy Janes is now selling the Sanderson shorty headers that Bronco Hut used to sell. Maybe he could give you a part number or has them for sale?
69 Wagon, 351W, Explorer EFI & Serpentine, ZF5, 35" tires, 3.5 SL, 2 BL, WARN 8274
- Strike2
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Re: GT-40 Exhaust Gasket
ZOSO wrote:tallest port I could find was 1.75". did you measure the ports on the heads to be sure they are 1.9" tall?
I spoke with Nascar Mike at this months breakfast and he said I was way overthinking it and said since the head ports and header ports where not the same size just match the heads ports so I ended up getting the Cometic C5898HTS header gaskets locally.
Janes Automotive thanks for the lead Eck I've never heard of them.
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Mr. Lav
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Re: GT-40 Exhaust Gasket
Also if I remember correctly in the Sanderson's installation papers they called for 1/8" bead of permatex Ultra black high heat silicone around each port.