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Quadrajet red flags?

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Old Dec 15, 2025 | 11:04 AM
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Default Quadrajet red flags?

For the Quadrajet gurus... from an external view any red flags here, assuming 72 service replacement?



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Old Dec 15, 2025 | 12:14 PM
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Just stand by and most likely Lars will chime is bc he is the only QJet guru on the planet!!!

JJ78
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Old Dec 15, 2025 | 01:38 PM
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The entire body has been sandblasted or chemically stripped, removing the goldish greenish brown color that they’re supposed to be. If I had to bet, I’d say it’s been commercially rebuilt, meaning it could be a mish mash of all sorts of different model parts, probably never even tried being run on an engine.

Here’s the same carb # in the for sale section with the correct finishes. A better piece at a probably much better price.
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Old Dec 15, 2025 | 04:36 PM
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Ok thanks guys 👍
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Old Dec 15, 2025 | 04:53 PM
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Also like the thread I linked says, that’s for a 1969 350/350. Here is how to decode the numbers.
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Old Dec 15, 2025 | 04:56 PM
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Originally Posted by Piersonpie
Also like the thread I linked says, that’s for a 1969 350/350. Here is how to decode the numbers.
thank you... I figured the carb to be 1972 by the date code and have the same carb... good stuff you sent, im passing on it however, no rush here, just gaining info and thank you again.
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Old Dec 15, 2025 | 06:31 PM
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Get a hold of Lars. He is the ONLY Q-jet guru.
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Old Dec 15, 2025 | 10:45 PM
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First, that's not a '72 carb. It's a 1969 Service Replacement for manual transmission only.

Secondly, it's a hacked, commercially rebuilt carb that has been sandblasted and stripped of all coatings. E-Mail me for my "Commercially Rebuilt Q-Jets Problems" paper for a list of just a few of the 100 things that will be wrong with that carb.

This is what a small block '72 should look like:














This is a 7029207 1969 carb:



Lars

Last edited by lars; Dec 16, 2025 at 12:25 AM.
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Old Dec 16, 2025 | 05:31 AM
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Thanks Lars... I have passed on it
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