05-06-2024, 04:21 PM | #1 |
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Location: Los Osos Ca
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Correct 292 carb ID
I’ve got a 65 with a 292. Years ago I installed a parts store rebuild Rochester B that has worked fine, but is now time to be gone through. Before I put in the time and money I’d like to verify it is truly a correct 292 style. How do I identify a “real” one?
Thanks, Tom
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65 short stepside K10 292-SM420-T221 8 lug closed D44 front NoSpin HO72 4.10 rear |
05-07-2024, 05:34 PM | #2 |
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Re: Correct 292 carb ID
Here's the little that I know. There's a lot of variations on the Rochester B, if the carb still has the triangular identification tag, that's your best place to start. If it's missing, I can tell you 2 things, the pump plunger is a different style on the earlier Rochester B (the earlier style uses leather, the later is plastic) and the jet for a 292 is around .072 vs. roughly .058 for a 250. There's not much else to distinguish them other than manual vs. auto choke.
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05-07-2024, 08:48 PM | #3 |
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Re: Correct 292 carb ID
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1960 Apache10 long fleetside, 235 and SM420, Brigade Blue and Bombay Ivory |
05-07-2024, 11:03 PM | #4 |
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Re: Correct 292 carb ID
Thanks for the info guys. Makes sense that the jets would be larger for the big six. I thought I remembered reading that the bore size was also slightly larger for the 292 applications. Thanks for the link. Looks like he’s a wealth of information and a good parts source as well.
While I’m on the subject, anyone know if there’s a difference between intake manifolds? I know for a fact mine came off a ‘66 with a 250. Thanks Tom
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65 short stepside K10 292-SM420-T221 8 lug closed D44 front NoSpin HO72 4.10 rear |
Yesterday, 09:00 AM | #5 |
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Re: Correct 292 carb ID
Look for a triangle shape tag screwed to top of the carb , many are missing but the original number to ID a 292 carb is 7024009 for 1964-1966
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