ROCHESTER 17057235 Quadrajet Carburetor 4-BARREL

( Brand: Rochester ), ( Manufacturer Part Number: 17057235 ), ( Type: Chevy Carb ), ( Features: Quadrajet ), ( Universal Fitment: No )

Review ROCHESTER Quadrajet 4-barrel Carburetor Late Cadillac fits 1970

The Rochester Quadrajet 4-barrel carburetor, model number 17057235, is a classic automotive component that was widely used in various applications during the 1970s, including on Cadillac models. This carburetor is a four-barrel design, meaning it utilizes four separate barrels to provide increased fuel delivery compared to a single or double-barrel carburetor. This design was particularly popular during the muscle car era for its ability to enhance engine performance.

The Quadrajet 17057235 is a mechanical fuel delivery system that relies on vacuum and engine suction to draw fuel from the carburetor bowls into the intake manifold and combustion chambers. The carburetor features a sophisticated design with a venturi-shaped barrel, which creates a vacuum that draws fuel into the engine. Each barrel is equipped with an individual float and needle valve that regulates the fuel flow to the corresponding intake port.

The Quadrajet 17057235 is also known for its advanced choke system, which uses a vacuum-operated mechanism that ensures a smooth and reliable cold start. The choke system allows for an increased fuel flow to the engine during start-up, providing an enriched air-fuel mixture that helps the engine ignite more easily.

Additionally, this carburetor is equipped with a power valve that improves engine performance under heavy load conditions. The power valve, located in the throttle body, opens when the engine RPM increases, allowing for a larger fuel flow to the engine, which results in improved power and torque.

The Rochester Quadrajet 17057235 is a well-engineered component that offers excellent fuel efficiency, reliable performance, and easy adjustability. However, it is essential to note that installing and tuning a Quadrajet carburetor requires a certain level of expertise and experience, as improper adjustment can lead to engine performance issues.

In summary, the Rochester Quadrajet 17057235 is a high-performance 4-barrel carburetor that was commonly used on Cadillacs during the 1970s. Its advanced design features include a venturi-shaped barrel, individual float and needle valves, a vacuum-operated choke system, and a power valve for improved performance under heavy load conditions. Installing and tuning this carburetor requires a certain level of expertise to ensure optimal engine performance.

Pros and Cons of Installing a Rochester 17057235 Quadrajet 4-Barrel Carburetor on a 1970s Cadillac

A Rochester 19057235 Quadrajet 4-barrel carburetor is a popular choice for those looking to upgrade the fuel delivery system on their 1970s Cadillac. This carburetor was originally used on various GM vehicles during the 1970s and is known for its smooth operation and reliable performance. However, like any automotive component, it comes with its advantages and disadvantages. This article aims to provide an unbiased analysis of both.

1. Improved Performance: A 4-barrel carburetor, such as the Rochester 17057235, delivers more air and fuel to the engine compared to a stock 2-barrel carburetor. This results in better combustion, increased horsepower, and improved throttle response.

2. Smoother Idle: The Quadrajet design utilizes a fuel pressure regulator, which maintains a consistent fuel pressure at the carburetor, ensuring a smoother idle and better fuel distribution.

3. Improved Fuel Economy: Due to the more efficient fuel delivery, some users report improved fuel economy with a 4-barrel carburetor.

4. Easy to Tune: The Quadrajet design offers easy access to the adjustment screws, making it easier to tune the carburetor for optimal performance.

1. Complexity: Installing a 4-barrel carburetor is more complex than a 2-barrel carburetor. It requires more time, expertise, and resources.

2. Cost: A Quadrajet 4-barrel carburetor, along with the necessary installation components, can be more expensive than a stock 2-barrel carburetor.

3. Fuel Mileage: Some users report a decrease in fuel mileage due to the increased fuel consumption that comes with the improved performance.

4. Potential for Leaks: A 4-barrel carburetor has more fuel lines and connections, increasing the potential for fuel leaks.

The decision to install a Rochester 17057235 Quadrajet 4-barrel carburetor on a 1970s Cadillac depends on individual priorities. For those seeking improved performance, smoother idling, and better fuel economy, the benefits may outweigh the costs and complexity. However, for those who prefer a simpler setup or are budget-conscious, a stock 2-barrel carburetor may be a better choice. Ultimately, careful consideration of the pros and cons, along with a thorough understanding of the installation process, is necessary before making a decision.

If you are committed to installing a 4-barrel carburetor on your 1970s Cadillac and have the necessary resources, the Rochester 17057235 Quadrajet 4-barrel carburetor is a reliable and proven choice. Ensure that you have the necessary tools, knowledge, and experience to complete the installation process, or consider seeking assistance from a professional mechanic. For those who prefer a simpler setup or are budget-conscious, a stock 2-barrel carburetor may be a more suitable option.

Details:

Will need rebuilt but everything moves freely. Rochester Quadrajet 4 barrel carb from a 1980 GM truck. Please see pictures and ask any questions before purchasing.

part #: 17057235 prices

• $47.67-$499.99

specifications carbcoon:

• for makes: Cadillac, Rochester
• for years: 1970
• brand: Rochester
• mpn: 17057235
• type: Chevy Carb
• features: Quadrajet
• universal fitment: No

general carbcoon:

• condition: Used
• Car Truck Parts Accessories > Air Fuel Delivery > Carburetors

offer carbcoon:

• availability: In Stock
• started: March 24, 2025
• best offers: True
• sold: 0
• options: Ship-to-home
• quantity: 1

seller carbcoon:

• # reviews: 1388
• city: Rockford, Michigan
• rating: 100.0%

payments carbcoon:

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• credit card: Visa

returns carbcoon:

• policy: No Returns

shipping carbcoon:

• service: USPS Ground Advantage
• carrier: USPS
• transit: 3-8 Days
• cost: $19.95
• class: Standard
• type: Calculated

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