GP Gasket for 847D

1940 - 1941 BRC, MA, GP, Preproduction Prototypes. Knowledge Base NO EBAY or COMMERCIAL SALES.
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DUKE
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GP Gasket for 847D

Post by DUKE » Sat Jun 29, 2019 10:34 am

Hi Gentlemen,

I just got one of the repro Holley 847Ds and my question is, do I use the thin flat gasket or the thicker one with the diffuser? Thanks
48 CJ2A 167227
41 GP 14334

George Hollins
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Re: GP Gasket for 847D

Post by George Hollins » Sun Jul 07, 2019 8:52 am

The original GP carb to manifold gasket GP-9447 was flat, no diffuser. Therefore, I decided to stay with the original design, and I made my own flat gasket for my repro Holley. Also, I made a flat gasket GP-9508 between the air horn elbow and the top of the carb.

I guess using a gasket with diffuser would be a personal choice. Here is a G503 topic about the diffuser that was added to the MB carb gasket in 1942:
viewtopic.php?f=4&t=227927

George
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DUKE
G-Sergeant
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Posts: 41
Joined: Fri Apr 04, 2003 11:12 pm
Location: O'Fallon, IL

Re: GP Gasket for 847D

Post by DUKE » Sun Jul 07, 2019 2:04 pm

Thanks for the reply George. I had overlooked that I need the gasket on the air horn elbow. I appreciate your effort.
48 CJ2A 167227
41 GP 14334

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