Carburetor base gasket
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Joined: Mar 2003
Posts: 98
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From: Oglesby Illinois
Carburetor base gasket
I have a 1970 LS5 and was wondering the original shape of the carburetor gasket between it and the manifold. Pictures would be great and where to get it would be great as well, thanks.
Drifting
Joined: May 2012
Posts: 1,353
Likes: 44
From: Calgary Alberta
This is what the car came with, but I wouldn't bother with it unless you're going after NCRS judging (it's too thin and was upgraded the next year):
http://www.parts123.com/corvettecent...50g&ukey=11326
Here's the 1971 version (thick base gasket, helps with keeping the heat of the intake out of the carb, etc.):
http://www.parts123.com/corvettecent...50g&ukey=11344
I have the latter on my 1970.
http://www.parts123.com/corvettecent...50g&ukey=11326
Here's the 1971 version (thick base gasket, helps with keeping the heat of the intake out of the carb, etc.):
http://www.parts123.com/corvettecent...50g&ukey=11344
I have the latter on my 1970.
Last edited by Brcmpbl; Apr 15, 2016 at 09:26 PM.
Thread Starter
Advanced
Joined: Mar 2003
Posts: 98
Likes: 3
From: Oglesby Illinois
I guess I should have given a little more detail. I had a problem with the idle and it turned out the wrong size base gasket was installed allowing it to leak air. I replaced it with a thick gasket of the correct size and that fixed the idle problem but now I have an off idle lag. I checked the float level and it is fine. Should the gasket have 4 separate holes or one large one? Based on the intake it should have a 4 hole version. Also there is an opening by the primaries, should that be covered by the gasket or exposed?
Thanks
Thanks
Drifting
Joined: May 2012
Posts: 1,353
Likes: 44
From: Calgary Alberta
If you have the stock manifold on the car, the gaskets I posted are the correct ones. The stock intake had four holes.
An off idle lag could be several things, including a vacuum leak or a worn accelerator pump, etc.
An off idle lag could be several things, including a vacuum leak or a worn accelerator pump, etc.
