ROCHESTER 17058473 Quadrajet Carburetor Engine 1978/79

( Brand: Rochester ), ( Manufacturer Part Number: 17058473 ), ( Country Of Origin: United States ), ( Vintage Part: Yes ), ( Choke Type: Mechanical ), ( Type: Carburetor ), ( Mounting Flange Type: Spread Bore ), ( Features: Quadrajet )

Review ROCHESTER Quadrajet Carburetor 1978/79 Chevrolet Gmc Engine New fits 350

The Rochester Quadrajet Carburetor, model number 17058473, is a four-barrel carburetor specifically designed for use with 1978 and 1979 Chevrolet and GMC engines equipped with a 350 cubic inch V8. This carburetor is a crucial component of the vehicle's fuel delivery system, ensuring optimal engine performance.

The Quadrajet Carburetor features four separate barrels, each with its own throttle plate, which allows for a more efficient and even fuel mixture. The carburetor utilizes a mechanical secondaries system, where the secondary throttle plates open at a predetermined engine RPM to provide additional fuel for improved high-end power.

The Quadrajet Carburetor is equipped with an automatic choke system, which ensures easy starting in various weather conditions. This system uses a vacuum-operated mechanism to enrich the fuel mixture during engine cranking, making it easier to start the engine, especially in cold temperatures.

A unique feature of the Quadrajet Carburetor is its built-in power valve, which helps improve low-end torque and drivability. This valve regulates the amount of fuel delivered to the engine under light load conditions, allowing for smoother acceleration and better fuel economy.

The Quadrajet Carburetor comes with a factory-calibrated air cleaner assembly, which includes a filter element and a breather system to maintain proper air flow and engine health. The carburetor also features adjustable idle mixture screws, which allow for fine-tuning of the engine idle speed and quality.

This carburetor is designed to be a direct replacement for the original equipment on 1978 and 1979 Chevrolet and GMC vehicles with a 350 cubic inch V8 engine, making it an ideal choice for restoration projects or for vehicles in need of a carburetor upgrade. The Quadrajet Carburetor comes with a 12-month warranty from the manufacturer, ensuring peace of mind for the consumer.

In summary, the Rochester Quadrajet Carburetor, model number 17058473, is a high-performance, four-barrel carburetor specifically designed for use with 1978 and 1979 Chevrolet and GMC engines equipped with a 350 cubic inch V8. It features automatic choke, mechanical secondaries, and a built-in power valve for improved performance and drivability. The carburetor comes with a factory-calibrated air cleaner assembly and is a direct replacement with a 12-month warranty.

Pros and Cons of Buying a Rochester Quadrajet Carburetor (17058473) for a 1978/79 Chevrolet or GMC 350 Engine

The Rochester Quadrajet carburetor is known for its efficient fuel delivery system and smooth idling characteristics. If you own a 1978/79 Chevrolet or GMC vehicle with a 350 engine, you might consider upgrading to this carburetor for improved performance. In this article, we'll explore the pros and cons of making this purchase.

1. Improved Fuel Efficiency: The Quadrajet carburetor is designed to provide a consistent fuel mixture, which can lead to better fuel economy compared to older carburetors.

2. Smooth Idling: This carburetor is known for its smooth idling characteristics, ensuring a better driving experience.

3. Power Enhancement: The Quadrajet system can provide a noticeable increase in power and torque, making your vehicle feel more responsive.

4. Easy Installation: The Quadrajet carburetor is a direct replacement for most 1978/79 Chevrolet and GMC 350 engines, making the installation process relatively straightforward.

1. Cost: The Quadrajet carburetor can be more expensive than other aftermarket options, especially if you opt for a rebuilt or new unit.

2. Complexity: The Quadrajet system is more complex than some other carburetors, which can make troubleshooting and maintenance more challenging.

3. Fuel Pressure Requirements: The Quadrajet carburetor requires a higher fuel pressure than some other options, which may necessitate additional modifications or the purchase of a fuel pressure regulator.

The Rochester Quadrajet carburetor (17058473) offers several advantages for those looking to upgrade their 1978/79 Chevrolet or GMC 350 engine. These advantages include improved fuel efficiency, smooth idling, power enhancement, and easy installation. However, it also comes with some drawbacks, such as a higher cost, complexity, and fuel pressure requirements.

Based on the information provided, it is recommended that potential buyers carefully weigh the pros and cons of purchasing a Rochester Quadrajet carburetor (17058473) for their 1978/79 Chevrolet or GMC 350 engine. If you prioritize power, smooth idling, and fuel efficiency, and are willing to invest in a more complex and expensive carburetor, then the Quadrajet may be an excellent choice for you. However, if you're on a tight budget or prefer a simpler, more affordable aftermarket option, you may want to consider other alternatives.

Details:

The linkage and throttle plates move freely the threads on fuel inlet are in good condition the fitting easily by hand. Brand new factory original carburetor # 7029207 for 1978 and 1979 Chevrolet GMC with a 350 cubic inch engine. GM # 17058473 Rochester Carburetor - Delco.

part #: 17058473 prices

• $48.00-$349.99

specifications carbcoon:

• for models: 350
• for makes: Chevrolet, Gmc, Rochester
• brand: Rochester
• mpn: 17058473
• country of origin: United States
• vintage part: Yes
• choke type: Mechanical
• type: Carburetor
• mounting flange type: Spread Bore
• features: Quadrajet

payments carbcoon:

• other
• credit card: Diners-club
• wallet: Paypal

offer carbcoon:

• sold: 0
• best offers: True
• quantity: 1
• availability: In Stock
• started: March 11, 2026
• options: Ship-to-home

shipping carbcoon:

• transit: 3-7 Days
• carrier: USPS
• type: Fixed
• class: Standard
• service: USPS Ground Advantage
• cost: $0.00

seller carbcoon:

• rating: 100.0%
• # reviews: 2420
• city: Philadelphia, Pennsylvania

general carbcoon:

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

returns carbcoon:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

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