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  1. Four-barrel carburetor
    • According to 2 sources
    The Rochester Quadrajet is a four-barrel carburetor that was first introduced in 1965 by the Rochester Products Division of General Motors. It was designed to meet the requirements for better fuel economy, improved emissions, and increased power.

    Rochester Quadrajet Carbur…

    carburetor-parts.com
    The Quadrajet is a four barrel carburetor with a "spread bore" throttle plate, made by the Rochester Products Division of General Motors. Its first application was the new-for-1965 Chevy 396ci engine.

    Quadrajet - Wikipedia

    en.wikipedia.org
     
  2. People also ask
    What is the difference between a Quadrajet and a square bore carburetor?
    The Quadrajet is a "spread bore" carburetor; the secondary venturis are much larger than the primary venturis. By comparison, a "square bore" carburetor has primary and secondary venturis of similar size.

    Quadrajet - Wikipedia

    en.wikipedia.org
    What is a Quadrajet carburetor?
    The Quadrajet was actually the successor to the previously-built Rochester 4GC carburetor that was manufactured from 1952 to 1967. 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.

    Choose Your Quadrajet: Number Identification Guide - Chevy Hardcore

    chevyhardcore.com
    How does the Rochester Quadrajet carburetor work?
    Before diving into specific problems and solutions, it's essential to have a basic understanding of how the Rochester Quadrajet carburetor works. The Rochester Quadrajet carburetor is a sophisticated four-barrel carburetor that plays a crucial role in mixing air and fuel for combustion in an internal combustion engine.

    Common Rochester Quadrajet Carburetor Problems and How to Fix Th…

    carburetor-parts.com
    How do you identify a Quadrajet carburetor?
    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. The large flat area on the main body just above the secondary throttle shaft has a series of numbers stamped into the casting.

    Quadrajet Casting Number Chart - Cliffs High Performance

    cliffshighperformance.com
    Is a Quadrajet carburetor still viable?
    One company that is proving the carburetor – especially the Quadrajet – is still viable, is Jet Performance. Each carburetor is inspected and assembled by one technician. Before any work can begin, the unit being rebuilt gets a thorough cleaning and inspection to ensure all parts are usable.

    Rebuilding The Quadrajet Carburetor. Yes, They Are Worth It

    chevyhardcore.com
    When did Quadrajet carbs come out?
    The “ 1705 ” series of carburetors would run until 1979. Beginning in 1980, the first four numbers were changed to “1708,” and this number series would continue until the last carburetors were produced in the late 1980s. Plant Codes Plant codes identify which plant the Quadrajet carb was cast at.

    Quadrajet Casting Number Chart - Cliffs High Performance

    cliffshighperformance.com
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  3. Chevy Hardcore
    https://www.chevyhardcore.com › tech …

    Choose Your Quadrajet: Number Identification Guide

    Apr 28, 2016 · Learn how to identify different models and variations of the Rochester Quadrajet carburetor, a performance and economy carb used on GM …

    • Estimated Reading Time: 8 mins
       
    • Mike's Carburetor Parts
      https://www.carburetor-parts.com › roches…

      Rochester Quadrajet Carburetor: A Complete Guide

      Apr 20, 2023 · The Rochester Quadrajet is a four-barrel carburetor that was first introduced in 1965 by the Rochester Products Division of General Motors. It was designed to meet the requirements for better fuel economy, improved …

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