Quadrajet for an 82
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Melting Slicks
Joined: Apr 2023
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From: Poplar Bluff MO
Quadrajet for an 82
I have a weber carb on my 82 at the moment but I'm looking to replace it with a Quadrajet. I see a lot of Quadrajets close to me on FB Marketplace but don't know what to look for or what numbers I should look for. I'd like to find a rebuildable one and send it the the Quadrajet Guru Lars and get it rebuilt.
Edit: is there a guide somewhere that shows how to identify a Quadrajet?
JT
Edit: is there a guide somewhere that shows how to identify a Quadrajet?
JT
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I have a weber carb on my 82 at the moment but I'm looking to replace it with a Quadrajet. I see a lot of Quadrajets close to me on FB Marketplace but don't know what to look for or what numbers I should look for. I'd like to find a rebuildable one and send it the the Quadrajet Guru Lars and get it rebuilt.
Edit: is there a guide somewhere that shows how to identify a Quadrajet?
JT
Edit: is there a guide somewhere that shows how to identify a Quadrajet?
JT
All Quadrajets have the part number on the driver's side of the main body towards the rear. Usually starts with a 7 or 17.
Thread Starter
Melting Slicks
Joined: Apr 2023
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From: Poplar Bluff MO
Thread Starter
Melting Slicks
Joined: Apr 2023
Posts: 2,802
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From: Poplar Bluff MO
I found a note I made from I assume something Lars said and that may answer my question.
JT
A 17059216 manufactured by Carter is the exact same carb as a 17059216 carb manufactured by Rochester. They are the same carb, and both are correct and original factory-installed carbs for a '79 350 Vette with AC and AT. That carb will outperform anything else you can put on your car once it's correctly set up - don't ever get rid of it. It's a 750 cfm carb, and it's not a "vacuum secondary" carb.
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If you do some research I believe you will find that is a Carter Competition Series carburetor even though you may see the name Weber on it. If you look around the edge of the base plate you may find a number.
You have to check the top of the intake manifold. If all 4 holes are the same size a Quadrajet will not fit.
You have to check the top of the intake manifold. If all 4 holes are the same size a Quadrajet will not fit.
Race Director
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If you do some research I believe you will find that is a Carter Competition Series carburetor even though you see the name Weber on it. If you look around the edge of the base plate you may find a number.
You have to check the top of the intake manifold. If all 4 holes are the same size a Quadrajet will not fit.
An example.
Carter
You have to check the top of the intake manifold. If all 4 holes are the same size a Quadrajet will not fit.
An example.
Carter
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From: At my Bar drinking and wrenching in Lafayette Colorado
Lars
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Melting Slicks
Joined: Apr 2021
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From: Minnesota
It’s hard to tell from the picture, does that intake manifold have a spread bore mounting pattern for a Quadrajet? If not you would need to change it to one that does.
A stock L83 is fairly close to an L48 from previous years. I would be looking for one of those so the jetting and overall setup is in the ballpark of what you want. A 1975-1980 M4M style carb can be outfitted with an electric choke, which would be my personal choice.
A stock L83 is fairly close to an L48 from previous years. I would be looking for one of those so the jetting and overall setup is in the ballpark of what you want. A 1975-1980 M4M style carb can be outfitted with an electric choke, which would be my personal choice.
Melting Slicks
Joined: May 2021
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From: Fleming Island, FL
The L-83 has 9 to 1 flat top pistons and a 202/206 duration cam with slightly over.400 lift.
To the OP why do you want a Quadrajet? I see that you already have some sort of aftermarket/performance intake. IMO I would stick with what you already have. If you need to replace your current carburetor I would just replace it with a Edelbrock 1406 or Holley Warrior. I have the Warrior and I like it.
To the OP why do you want a Quadrajet? I see that you already have some sort of aftermarket/performance intake. IMO I would stick with what you already have. If you need to replace your current carburetor I would just replace it with a Edelbrock 1406 or Holley Warrior. I have the Warrior and I like it.
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Melting Slicks
Joined: Apr 2023
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From: Poplar Bluff MO
The L-83 has 9 to 1 flat top pistons and a 202/206 duration cam with slightly over.400 lift.
To the OP why do you want a Quadrajet? I see that you already have some sort of aftermarket/performance intake. IMO I would stick with what you already have. If you need to replace your current carburetor I would just replace it with a Edelbrock 1406 or Holley Warrior. I have the Warrior and I like it.
To the OP why do you want a Quadrajet? I see that you already have some sort of aftermarket/performance intake. IMO I would stick with what you already have. If you need to replace your current carburetor I would just replace it with a Edelbrock 1406 or Holley Warrior. I have the Warrior and I like it.
JT
Thread Starter
Melting Slicks
Joined: Apr 2023
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From: Poplar Bluff MO
Thread Starter
Melting Slicks
Joined: Apr 2023
Posts: 2,802
Likes: 1,623
From: Poplar Bluff MO
It’s hard to tell from the picture, does that intake manifold have a spread bore mounting pattern for a Quadrajet? If not you would need to change it to one that does.
A stock L83 is fairly close to an L48 from previous years. I would be looking for one of those so the jetting and overall setup is in the ballpark of what you want. A 1975-1980 M4M style carb can be outfitted with an electric choke, which would be my personal choice.
A stock L83 is fairly close to an L48 from previous years. I would be looking for one of those so the jetting and overall setup is in the ballpark of what you want. A 1975-1980 M4M style carb can be outfitted with an electric choke, which would be my personal choice.
JT
Thread Starter
Melting Slicks
Joined: Apr 2023
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From: Poplar Bluff MO
@Fly skids up! Just looking at the Holley Street Warrior Model 4160® Carburetor and I see it's a 600 CFM, Vacuum Secondaries and something I didn't think about it's Integrated 700R4/200R4 transmission kick down cable mounting. So that's important for me.
JT
JT
Melting Slicks
Joined: May 2021
Posts: 2,271
Likes: 1,316
From: Fleming Island, FL
@Fly skids up! Just looking at the Holley Street Warrior Model 4160® Carburetor and I see it's a 600 CFM, Vacuum Secondaries and something I didn't think about it's Integrated 700R4/200R4 transmission kick down cable mounting. So that's important for me.
JT
JT
https://documents.holley.com/6e38060...a88a55d7d6.pdf
https://www.summitracing.com/parts/HLY-20-95
https://www.summitracing.com/parts/SUM-200280
600 CFM is not enough?? My engine dynoed at 343 horsepower with that carburetor.
Last edited by Fly skids up!; Jan 4, 2025 at 08:51 AM.
Thread Starter
Melting Slicks
Joined: Apr 2023
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From: Poplar Bluff MO
Links the Warrior manual and parts.
https://documents.holley.com/6e38060...a88a55d7d6.pdf
https://www.summitracing.com/parts/HLY-20-95
https://www.summitracing.com/parts/SUM-200280
600 CFM is not enough?? My engine dynoed at 343 horsepower with that carburetor.
https://documents.holley.com/6e38060...a88a55d7d6.pdf
https://www.summitracing.com/parts/HLY-20-95
https://www.summitracing.com/parts/SUM-200280
600 CFM is not enough?? My engine dynoed at 343 horsepower with that carburetor.
I did take the bolts out of the carburetor and peeked under it and it looks like a spread bore manifold, I'll have to disconnect everything so I can lift the carburetor up without tilting it or gas pours out.
I have no problem changing the manifold to a square bore to fit the Holley Street Warrior Model 4160 Carburetor, just need to know what is a good manifold that is low enough to have a normal air filter on the carburetor.
@Fly skids up! What have you done to your engine other than the carburetor?
Thanks for your replies
JT
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@Fly skids up! Just looking at the Holley Street Warrior Model 4160® Carburetor and I see it's a 600 CFM, Vacuum Secondaries and something I didn't think about it's Integrated 700R4/200R4 transmission kick down cable mounting. So that's important for me.
JT
JT
Melting Slicks
Joined: May 2021
Posts: 2,271
Likes: 1,316
From: Fleming Island, FL
@Fly skids up! What have you done to your engine other than the carburetor?
Thanks for your replies
JT
The Holley Warrior came with the engine but would have been my first choice if it hadn't.
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You should be able to tell just by looking from above and comparing the pair of forward bores with the size of the rear bores. A spread-bore will show a noticeable size difference between the pairs.