How do you date a Quadrajet carburetor?
Most Rochester-built Quadrajet carburetors were given a four-number date stamp. This code can be deciphered as such: the first three numbers are the day of the year (082x = 82nd day of the year) the carburetor was built. The last number is the year (0828 = 82nd day of 1968).
What was the first year for the Quadrajet carburetor?
First released by Rochester in 1965 and used extensively in GM cars from late 1967 on, The Quadrajet was the evolution of the earlier Rochester 4GC carburetor; however, it also incorporated ideas from the other manufacturers, such as the spread-bore design and vacuum secondaries.
Is a quadrajet a good carburetor?
A lot of good and bad has been written about the use of a Rochester Quadrajet carburetor as a replacement four-barrel. The truth is, a properly tuned Quadrajet can be just as efficient and reliable as a bolt-on substitute performance carburetor.
Is a quadrajet carb any good?
The truth is, a properly tuned Quadrajet can be just as efficient and reliable as a bolt-on substitute performance carburetor. The Quadrajet has many model designations; the most adaptable units were designated as 4M, 4MC and 4MV, and most were rated at 750cfm until 1972 when their rating was increased to 800cfm.
How did the Quadrajet carburetor become a success?
This new carburetor was blended with what Rochester knew about carburetors, mixed with ideas from other manufacturers, (spread-bore design and vacuum secondaries). The Quadrajet became an instant success. The Quadrajet carburetor was available on GM passenger and performance cars, as well as its trucks. Image courtesy www.chevytalk.com
Where are the carburetor tags on a Quadrajet?
Through the years of production, the manufacturers of Quadrajet carburetors used numbers for carburetor identification. Very early Quadrajets had tags installed into a cast round area on the drivers side of the main body of the carburetor. In and after about 1968, stamped numbers were used for Quadrajet Carburetor identification.
Where was the Rochester Carb Quadrajet part made?
Rochester Carb / QuadraJet Parts This carburetor was made by Rochester , The Rochester Products Division of General Motors was located in Rochester New York and built carburetors for GM vehicles since 1949 .
What do the last two digits on a Quadrajet mean?
Chevrolet Quadrajet carburetors would have a 0, 1, or even a 2. The last two remaining digits determine whether the carburetor came from a car equipped with an automatic or manual transmission. Usually an even number will indicate an automatic car, while odd numbers indicate a manual transmission.
This new carburetor was blended with what Rochester knew about carburetors, mixed with ideas from other manufacturers, (spread-bore design and vacuum secondaries). The Quadrajet became an instant success. The Quadrajet carburetor was available on GM passenger and performance cars, as well as its trucks. Image courtesy www.chevytalk.com
Through the years of production, the manufacturers of Quadrajet carburetors used numbers for carburetor identification. Very early Quadrajets had tags installed into a cast round area on the drivers side of the main body of the carburetor. In and after about 1968, stamped numbers were used for Quadrajet Carburetor identification.
Rochester Carb / QuadraJet Parts This carburetor was made by Rochester , The Rochester Products Division of General Motors was located in Rochester New York and built carburetors for GM vehicles since 1949 .
Chevrolet Quadrajet carburetors would have a 0, 1, or even a 2. The last two remaining digits determine whether the carburetor came from a car equipped with an automatic or manual transmission. Usually an even number will indicate an automatic car, while odd numbers indicate a manual transmission.