Question: Does Rochester still make carburetors?

When looking under the hood of most classic Chevy’s, odds are you are going to see some version of a Rochester carburetor. Although the manufacturer did not start their storied existence by manufacturing carburetors, their fuel-delivery offerings were — and still are, a mainstay with Chevrolet enthusiasts.

Are Rochester carburetors still made?

In 1995 Rochester became part of Delphi, which in turn became a separate company four years later, and continues to manufacture fuel injection systems in Rochester, now part of General Motors Automotive Components Holdings- Rochester Operations.

Are Rochester carburetors good?

A lot of good and bad has been written about the use of a Rochester Quadrajet carburetor as a replacement four-barrel. Some enthusiasts love them while others avoid them like the plague. The truth is, a properly tuned Quadrajet can be just as efficient and reliable as a bolt-on substitute performance carburetor.

Who makes Rochester Quadrajet carburetor?

The Quadrajet is a four barrel carburetor, made by the Rochester Products Division of General Motors.

How do I know what Rochester carb I have?

All Rochester carburetors, including the Quadrajet, are identified by a 7-digit or 8-digit part number; the earliest units, made before mid-1968, had a round metal tag attached to the fuel bowl. The 7-digit part number ran around the outside edge of the tag.

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How do I identify a Rochester quadrajet?

All Rochester Quadrajet carburetors are identified by a seven- or eight-digit GM part number. On units made before mid-1968, the part number was stamped around the outside edge of a round metal tag attached to the fuel bowl.

Is Carter carburetor still in business?

Carter Carburetor Company in St. Louis, Missouri was established in 1909, and ceased operation in 1985. It was founded by William Carter, who started experimenting with automotive carburetors while running a successful bicycle shop.

Is quadrajet better than Holley?

QuadraJet hands down. It’s not as easy to work on as the Holley but the throttle response for street driving and better gas mileage make it worth the effort. Plus there’s nothing like the sound of a Q-Jet at WOT.

Is a quadrajet worth rebuilding?

Yes, They Are Worth It.

How do I identify my Rochester 2 barrel?

All Rochester carburetors are identified by a seven- or eight-digit part number. The earliest units, made before mid-1968, had a triangular metal tag attached to the fuel bowl. The seven-digit part number is listed on the tag.

What is a divorced choke quadrajet?

PHOTO 3 A divorced choke uses a spring housing that is separate from the carburetor body. Some Rochester Quadrajet carburetors employed a divorced choke spring that is very sensitive to intake manifold heat to open the butterfly.

Where is the carburetor number located?

The list number is stamped on your carburetor, either on the corner of the airhorn or choke tower or, if it doesn’t have an airhorn, on the mainbody. Remove the carburetor from your vehicle before looking for the list number to easily find the information you need.

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How much horsepower can a quadrajet support?

Re: How much hp can a quadrajet support? most decent quadrajets are about 10 to 15 hp shy of a good holley on a motor like your talking, and they lose another 10 or so more with an aircleaner. The ones that make big numbers on SS cars are big $$$. at 500hp and above the fuel capacity of the bowl becomes an issue.

Are all Quadrajets the same?

No they are not the same at all. Different size jets, oumps and there was even different cfm. Normal is 750 cfm and I think it was 800 or 830 was the bigger one.

What is a 2GC carb?

The 2GC (right), came with an air-horn-mounted spring/pod that operated the choke. In the late ’60s, the choke assembly pod on the 2GC was moved to a lower position on the carburetor. This configuration continued until the end of 2G/2GC automotive production in 1979.

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