Carb Base Gasket

[norton]

Can anyone tell me if the base gasket for a 1973-340, 4bbl, work on a 1972-340, 4bbl. with a stock intake and Thermoquad. I ordered a new Fel Pro gasket and the packaging says it's for 1973 and up 318/340/360 and 400. The parts store tell me that it's the same part number as the 72.

 

[Locomotion]

I don't have a lot of experience with Thermoquads yet, but there are 2 sizes of OEM Mopar TQ carbs with the size difference being in the primaries. But all the 340 TQ's were small. The OEM gaskets were also 1/4" thick. Not sure if the Fel-Pro is that thick. I got some 1/4" gaskets from 2 different sources, but I don't recall from where or the brand. One of them fits the small version, but isn't quite right for the bigger version. The smaller one might be a Q-Jet base gasket.

Carter Thermo-Quad Carburetor Base Gaskets - Carburetor Parts & Kits for Carter, Ford Motorcraft, Holley & Rochester Carburetors

 

[rustycowll69]

technically, the books are correct. What you have in your possession, I cannot say. Can you post a pic? The ones they used to supply were like a 1/4" thick hard plastic, with a thin graphite like impregnated gasket, that was non-stick, laminated to both sides. They are reusable many, many times. But I don't know where you get them anymore. I used to get them from MA Mopar, but that was about 20 yrs ago. Maybe someone has the old part number and can supply it for you to check on.

 

[norton]

This is what I bought. I can't open the package because if I do then I can't return it, but it is about a 1/4".

technically, the books are correct. What you have in your possession, I cannot say. Can you post a pic? The ones they used to supply were like a 1/4" thick hard plastic, with a thin graphite like impregnated gasket, that was non-stick, laminated to both sides. They are reusable many, many times. But I don't know where you get them anymore. I used to get them from MA Mopar, but that was about 20 yrs ago. Maybe someone has the old part number and can supply it for you to check on.

 

[halifaxhops]

It looks right, Just make sure the primary's will fit in the openings when it is at WOT.

 

[rustycowll69]

View attachment 1715057037 View attachment 1715057038 This is what I bought. I can't open the package because if I do then I can't return it, but it is about a 1/4".

yeah, that seems to be all they sell nowadays. they'll work that's about all you can say. too bad you can't get the old ones anymore.

 

[norton]

yeah, that seems to be all they sell nowadays. they'll work that's about all you can say. too bad you can't get the old ones anymore.

Thanks Guys