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Mod | | | Forums66 Topics128,026 Posts1,055,407 Members48,422 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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| | | | Joined: May 2009 Posts: 107 Shop Shark | | Shop Shark Joined: May 2009 Posts: 107 | I'm trying to find the sizes of the single barrel base plate gaskets. I am not sure of the different number sizes listed. i also hear there is a number assotiated with them? Ex. a 2 may be 2 11/16ths? Does anyone have a chart or know what the sizes are for the 216, 235, and 261? Any assistance would be appreciated.
Take care,
Steven
No one can drive us crazy unless we give them the keys.
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | | | | | | Joined: Jun 2012 Posts: 1,747 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 1,747 | Looks to me that Chevs of the 40s has the gasket that fits between the intake manifold and the insulator as well as the carb base gaskets.....there is one there isn't there? Hum... I never took that bit apart..never needed to weld on one either...Lucky me..:)
Steve H
| | | | | Joined: May 2009 Posts: 107 Shop Shark | | Shop Shark Joined: May 2009 Posts: 107 | My Zenith- 20A, D18429; 7521D. Base inside bolt pattern of 2 & 11/16 in.
My Rochester C has a base number of 7004522C. Base inside bolt pattern 2&1/2 in.
I read someplace where the 216 has a base size of 2 and the 235 is a size 3? Or as I remember it anyway.
Take care,
Steven
No one can drive us crazy unless we give them the keys.
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