WTB (Want To Buy) Rochester QuadraJet 7042203 Carburetor - CorvetteForum - Chevrolet Corvette Forum Discussion

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WTB: Rochester QuadraJet 7042203 Carburetor

Old 12-17-2018, 02:25 PM
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fastimes
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Default Rochester QuadraJet 7042203 Carburetor

Looking for a Rochester Q-Jet 7042203 carburator. Needed for an early 1972 L-48 4-speed, no A/C, no A.I.R.
Build date is October 25, 1971 (Engine dated October 12, 1971), so anything date coded prior to and including October 1971 would be good.
Please let me know if you have one. The bootlegged Rochester I'm running now has to go (per Lars), and I'd like to find the proper replacement.

Fingers crossed. Thanks!
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Old 12-21-2018, 04:42 PM
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Old 12-28-2018, 11:33 AM
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Old 01-10-2019, 01:50 PM
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Old 01-10-2019, 08:30 PM
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Default Rochester carb

U have one that is a recent rebuild on a 72' 350 (I'm getting a 427) how can I tell if it's the one you need?
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Originally Posted by fastimes View Post
Looking for a Rochester Q-Jet 7042203 carburator. Needed for an early 1972 L-48 4-speed, no A/C, no A.I.R.
Build date is October 25, 1971 (Engine dated October 12, 1971), so anything date coded prior to and including October 1971 would be good.
Please let me know if you have one. The bootlegged Rochester I'm running now has to go (per Lars), and I'd like to find the proper replacement.

Fingers crossed. Thanks!
​​​​​​
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Old 01-11-2019, 09:08 AM
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Originally Posted by MIKA KLEIN View Post
U have one that is a recent rebuild on a 72' 350 (I'm getting a 427) how can I tell if it's the one you need?
​​​​​​







​​​​​​
Thank you for the reply. If it is the original carburetor, do you know the build date for your car? If you post a photo of the date stamp on the left side of the carb, I can look into it to see if it works.

Thanks!
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Old 01-11-2019, 11:07 AM
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I think a date code of H1, J1 or K1 or 2382 to 2912 would work. I don't fully understand Rochester date codes.
My 72 car was built on the 298th day of 1971, so I think those numbers work (???)

Last edited by fastimes; 01-12-2019 at 06:54 PM.
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Old 01-12-2019, 12:02 PM
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Default Carb available 7042203.

Originally Posted by fastimes View Post
Looking for a Rochester Q-Jet 7042203 carburator. Needed for an early 1972 L-48 4-speed, no A/C, no A.I.R.
Build date is October 25, 1971 (Engine dated October 12, 1971), so anything date coded prior to and including October 1971 would be good.
Please let me know if you have one. The bootlegged Rochester I'm running now has to go (per Lars), and I'd like to find the proper replacement.

Fingers crossed. Thanks!
Hello,

I have a Q-Jet carb available, from a 72. Base SB motor, manual trans. Numbers: 7042203, Dated 2156. It's in decent shape. all parts free, fairly clean, and primary and secondary jetting numbers are correct. Have added a pick up tube, so the 4 inside the carb are there. Would need a more complete cleaning, and a carb rebuild kit.

Will send photos if interested.

Fred
Milwaukee
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Old 01-12-2019, 12:27 PM
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Originally Posted by C2-C3Guy View Post
Hello,

I have a Q-Jet carb available, from a 72. Base SB motor, manual trans. Numbers: 7042203, Dated 2156. It's in decent shape. all parts free, fairly clean, and primary and secondary jetting numbers are correct. Have added a pick up tube, so the 4 inside the carb are there. Would need a more complete cleaning, and a carb rebuild kit.

Will send photos if interested.

Fred
Milwaukee
Hi Fred,
Thank you for the reply. Definitely interested. As I mentioned, I'm still trying to figure out the date coding. I would like to find something that is appropriate for my build date.
The 2156 date confuses me. I thought the las digit was the year of manufacture. (i.e. 1976). I've also read the the 2 in 7042203 is the year of manufacture, not the model year of the car. I have a 1972 that was built in 1971. How does that work?
I would appreciate the photos when you have the time.
Thanks!
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Old 01-12-2019, 12:28 PM
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Default Carb available 7042203.

Originally Posted by fastimes View Post
Looking for a Rochester Q-Jet 7042203 carburator. Needed for an early 1972 L-48 4-speed, no A/C, no A.I.R.
Build date is October 25, 1971 (Engine dated October 12, 1971), so anything date coded prior to and including October 1971 would be good.
Please let me know if you have one. The bootlegged Rochester I'm running now has to go (per Lars), and I'd like to find the proper replacement.

Fingers crossed. Thanks!
Hello,

I have a Q-Jet carb available, from a 72. Base SB motor, manual trans. Numbers: 7042203, Dated 2156. It's in decent shape. all parts free, some old varnish and some carbon on the inside. The primary and secondary jetting numbers are correct. Have added a pick up tube, so the 4 inside the carb are there. Linkage appears correct and complete. Would need a more complete cleaning, and a carb rebuild kit.

Will send photos if interested.

Fred
Milwaukee

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Old 01-12-2019, 12:38 PM
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Here are a few photos of the carb I have available. 7042203 Julian date 2156. Can't tell you much about it.. extra part from a project car...

Model is correct, Julian date may indicate a mfg dating 215th day of 1976. Other forum members would be able to clarify this.

Fred


Quadrajet 7042203

Quadrajet 7042203

Quadrajet 7042203 - brown varnish on the outside.

Quadrajet 7042203 - brown varnish on the outside




Last edited by C2-C3Guy; 01-12-2019 at 12:56 PM.
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Old 01-12-2019, 01:18 PM
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Thank you Fred. I did run it by the C3 Tech forum, and a member confirmed that it is a replacement manufactured in 1976.
I will hold out to see if a correctly dated one comes along (although your's with a rebuild is probably better than the Frankensteined mess I'm running now )
I will keeps your's in mind (wouldn't be suprosed if someone else scoops it up).
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