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Mod | | | Forums66 Topics128,042 Posts1,055,505 Members48,424 | | 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!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: May 2011 Posts: 35 New Guy | | New Guy Joined: May 2011 Posts: 35 | As a new owner of a 1952 3100 pickup, I would like to do as many of you and keep a few spares on the shelf just in case. Although the Carter YF carb on the 1961 235 engine in the truck is working great, it would be nice to have a backup unit.
I crawled all over the engine compartment yesterday with the flashlight looking for the id number. Finally found a "92" stamped (not cast) on the edge of the mounting flange but I can't find this number reference. Since my engine is a hybrid of parts, I doubt if the carb is also a 1961 part and may not even be a GM unit. I would appreciate any help in figuring out where the carb came from so I can search for another one..
Thanks.
1952 3100
| | | | | Joined: May 2011 Posts: 35 New Guy | | New Guy Joined: May 2011 Posts: 35 | I noticed that there are several cast numbers on the carb in addition to the stamped number. Will these help me id the carb????
Thanks
1952 3100
| | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | There should be a stamped number Like in this pic ...pic... | | | | | Joined: May 2011 Posts: 35 New Guy | | New Guy Joined: May 2011 Posts: 35 | Thanks.
I did find a stamped number on the edge of the mounting flange that appears to be "92" but can't find that number listed when I Google search id numbers. Would like to know what make and model vehicle the carb came from so I can look for a spare.
1952 3100
| | | | | Joined: Nov 2002 Posts: 2,763 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,763 | The Carter YF's were identified by two different methods:
(1) The vast majority were identified by a stamped 3 or 4 digit number, followed by the letter "S" as is (S)am. This stamped number will always be found on the CENTER casting.
(2) A very few YF's were identified by the number being stamped on a triangular brass tag under one of the screws holding the top casting to the center section.
No other numbers have meaning.
The smallest possible 3 digit number is 735s.
Jon. Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | | | | Joined: May 2011 Posts: 35 New Guy | | New Guy Joined: May 2011 Posts: 35 | Thanks Jon.
I guess the brass tag was lost some time in the past.
Since I only found two numbers stamped on the center casting flange, I will scrub the flange with a wire brush to see if the rest of the numbers are there altough the carb is pretty clean.
I appreciate the help.
Ron
1952 3100
| | | | | Joined: Apr 2006 Posts: 506 Shop Shark | | Shop Shark Joined: Apr 2006 Posts: 506 | I noticed that there are several cast numbers on the carb in addition to the stamped number. Will these help me id the carb???? While you're looking for the stamped number, can you list the "several cast numbers. Who knows.....you could get lucky. 735 S = 1950-53 International Truck
-Tom
1950 Chevy 3100 w/ 1956 235
| | | | | Joined: May 2011 Posts: 35 New Guy | | New Guy Joined: May 2011 Posts: 35 | Crawled on the engine again and finally found the number behind the throttle linkage.
2100S
the "92" stamped along the edge of the flange is still puzzling.
Again, thanks to everyone for their help. Can now look for a spare carb.
Ron
1952 3100
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