The Stovebolt Site Forums The Shop Area Engine Shop 1946 Carburetor?

I corrected my first post above.

The GM Specifications Manual shows the following downdraft carburetors for 1946:

Carter W1-616S (downdraft) - 3000, 4100, 4400 series
Carter W1-574S (downdraft) - 4502, 6000 series

However, as posted by Jon, this Canadian GM document shows the 574S for all vehicles - cars & trucks (GMC & Chevrolet)