The Stovebolt Site Forums The Shop Area Engine Shop Zenith physical carburetor sizes

There have been some questions concerning whether or not Zenith carbs will bolt on in place of other carbs. Rather than answer in individual threads, I decided to open a new thread.

Please check the following link to my articles page:

http://www.thecarburetorshop.com/Zenithsizebreakdown.htm

And this link also may be useful:

http://www.thecarburetorshop.com/Zenithcodebreakdown.htm

Jon.

This thread was basically a response to a question about the G.M.C. 270.

If you check this link:

http://www.thecarburetorshop.com/TruckkitsG.htm#TkitGMC

You will find G.M.C. used Zenith 28AV11, 28AV12, 28BV11, 28BV12.

And Zenith made the 28AV12 WITH DIFFERENT INTERNAL VENTURI SIZES for engines from 245 CID to 525 CID.

To determine the airflow, one MUST do more research than just the carburetor type.

Jon.

Excellent information. Thanks for posting.