Author Topic: 1st Design HP289 4V Ford Carburetor : Extremely Rare  (Read 1256 times)

Dan Case

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1st Design HP289 4V Ford Carburetor : Extremely Rare
« on: May 24, 2019, 09:25:33 AM »
I am in no way connected to this offering on Ebay®. 


https://www.ebay.com/itm/1963-Ford-Fairlane-AUTOLITE-4100-4-BARREL-CARBURETOR-1-12-C3OF-AB-HIPO-289/312625681311?hash=item48c9f1539f:g:-fcAAOSwXexc5Yz8


This assembly has been commercially rebuilt before so it is missing its assembly tag and the top cover assembly is not correct BUT the main casting is stamped C3OF-AB.  That was the original HP289 carburetor model for all of preproduction engines during late 1962 through mid May 1963 production or about the first 1000± HP289 engines. (Regular production of HP289s started March 1, 1963.) They are super rare now in any condition. This is only the second core I have ever come across.


This model was replaced by the C3OF-AJ one in mid May 1963. There are many calibrated parts differences between the suffix AB and AJ models.


If you have a car (1963 Fairlane or Cobra are the most likely candidates) with a 1963˝ engine assembled before about mid-May 1963 this would the original model for your engine. Check your engine assembly date and or the engine serial number.

« Last Edit: March 16, 2024, 01:20:07 PM by Dan Case »
Dan Case
1964 Cobra owner since 1983, Cobra crazy since I saw my first one in the mid 1960s in Huntsville, AL.

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Re: 1st Design HP289 4V Ford Carburetor : Extremely Rare
« Reply #1 on: May 24, 2019, 12:07:38 PM »
   I have the C3OE intake manifold and C3OE spacer to complement it. LOL
Celebrating 46 years of drag racing 6S477 and no end in sight.