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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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| | | | Joined: Jun 2012 Posts: 142 Shop Shark | | Shop Shark Joined: Jun 2012 Posts: 142 | Working on my 39 jc and want to rebuilt the carter carb.problem is can't findo the darn rebuilt kit number the yf is 121A from hygrade,but can't find it for the w1 any help is appreciated. | | | | | Joined: Feb 2011 Posts: 583 'Bolter | | 'Bolter Joined: Feb 2011 Posts: 583 | The Carter W1 carburetor for Chevy truck is a 420S. The same carb was used for 1940. If there isn't a tag on the carb, it is sometimes stamped into the bottom of the throttle base.
Rick
1939 Chevrolet Stake Truck
| | | | | Joined: Jun 2012 Posts: 142 Shop Shark | | Shop Shark Joined: Jun 2012 Posts: 142 | Thanks,but what's the rebuilt kit number from hygrade or standard | | | | | Joined: Nov 2002 Posts: 2,766 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,766 | The Standard Hygrade kit number for the Carter 420s carb is C1080. This kit was discontinued in 1955! Good luck on finding a Hygrade kit for this application!
When Hygrade discontinued the old "contain all" kit line in the early 1950's, and started producing the "jiffy kits", no jiffy kit was produced for the 420s. Existing stocks of the C1080 were sold, and that was that.
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: Jun 2012 Posts: 142 Shop Shark | | Shop Shark Joined: Jun 2012 Posts: 142 | So I can't rebuilt my carb from a kit bought from the auto parts.that's a bummer. | | | | | Joined: Jun 2012 Posts: 142 Shop Shark | | Shop Shark Joined: Jun 2012 Posts: 142 | Any other company producing kits that I can buy from the local auto parts? | | | | | Joined: Nov 2002 Posts: 2,766 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,766 | I am unaware of any commercially available kits for any of the W-1 carbs which might be available through a local parts house.
They are readily available mail order.
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: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 |
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
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