ROCHESTER 17057553 Trans Am Quadrajet Carburetor

( Brand: Rochester ), ( Manufacturer Part Number: 17057553 ), ( Choke Type: Hot Air ), ( Type: Carburetor ), ( Mounting Flange Type: Spread Bore ), ( Features: Quadrajet )

Review ROCHESTER Pontiac Trans Am Quadrajet Carburetor Rebuilt fits 1977

The Rochester 17057553 Quadrajet carburetor is a legendary component of the 1977 Pontiac Trans Am's iconic engine setup. This carburetor, manufactured by Rochester Products, Inc., was a key contributor to the muscle car's impressive power and performance during its era.

The Quadrajet carburetor is a four-barrel, throttle-body design that features four separate barrels, each with its own intake manifold port and butterfly throttle valve. This configuration allows for a more efficient and even fuel-air mixture distribution to the engine, resulting in a more powerful and responsive engine.

One of the most distinctive features of the Quadrajet carburetor is its unique design of the secondary throttle plates. They are positioned further away from the main throttle plates, and they open at a higher engine vacuum level. This design helps to increase the engine's low-end torque and improve throttle response, making the car more responsive and quicker off the line.

The Quadrajet carburetor also features a choke system that uses a vacuum-operated mechanism to enrich the fuel-air mixture during engine start-up. This helps to ensure a smooth and easy start, even in cold weather conditions.

The Quadrajet carburetor is also known for its durability and reliability. It features a robust construction, with a cast aluminum body and heavy-duty components. The carburetor is also designed to be easy to tune, with accessible adjustments for the primary and secondary throttle circuits, idle mixture, and choke.

In summary, the Rochester 17057553 Quadrajet carburetor is a high-performance, reliable, and iconic component that contributed significantly to the legendary status of the 1977 Pontiac Trans Am. Its unique design features, such as the four-barrel configuration, the secondary throttle plates, and the vacuum-operated choke system, make it a favorite among car enthusiasts and collectors. Whether you're restoring a classic muscle car or building a high-performance hot rod, the Quadrajet carburetor is a must-have component that will help you achieve the power and performance you're looking for.

Pros and Cons of Buying a Rochester 17057553 Quadrajet Carburetor for a 1977 Pontiac Trans Am

The Rochester 17057553 Quadrajet carburetor is a popular choice for those restoring or working on a 1977 Pontiac Trans Am. This carburetor was originally used on the Trans Am and other muscle cars of the era, known for its ability to deliver excellent performance and fuel economy. In this analysis, we'll discuss the pros and cons of buying this carburetor for your 1977 Pontiac Trans Am restoration project.

1. Authenticity: The Rochester 17057553 Quadrajet carburetor is an original equipment manufacturer (OEM) part, meaning it was manufactured by the same company that originally supplied these carburetors to General Motors. Using an OEM part ensures that the carburetor is a perfect fit for your car and matches the factory specifications.

2. Performance: Quadrajet carburetors are known for their excellent performance. They offer smooth idling, quick throttle response, and excellent fuel economy. These carburetors were designed to provide optimal power delivery across the entire RPM range, making them an excellent choice for muscle cars like the Pontiac Trans Am.

3. Availability: Since the Rochester 17057553 Quadrajet carburetor was used on numerous muscle cars from the late 1960s to the late 1970s, they are relatively easy to find. You can find them at various salvage yards, online marketplaces, and specialized automotive parts stores.

1. Cost: Original Quadrajet carburetors, like the Rochester 17057553, can be expensive. While the price may vary depending on the condition and availability, you can expect to pay a significant amount of money for an authentic OEM part.

2. Complexity: Quadrajet carburetors are complex pieces of machinery. They have multiple jets, needles, and other components that need to be set correctly for optimal performance. Installing and tuning a Quadrajet carburetor requires a good understanding of carburetion and engine tuning.

3. Restoration Time: Installing an original Quadrajet carburetor can take longer than installing a modern replacement carburetor. The time required for tuning and setting up the carburetor can add days or even weeks to your restoration project.

The Rochester 17057553 Quadrajet carburetor offers numerous benefits for those restoring a 1977 Pontiac Trans Am. Its authenticity, performance, and availability make it an excellent choice for those seeking an original look and feel. However, its cost, complexity, and restoration time can be significant drawbacks. Ultimately, the decision to buy a Rochester 17057553 Quadrajet carburetor depends on your project goals, budget, and the level of authenticity you desire.

If you're restoring a 1977 Pontiac Trans Am for show or competition, and you want to maintain the authenticity of the car, then using an original Rochester 17057553 Quadrajet carburetor is highly recommended. However, if you're working on a budget or looking for a more straightforward restoration, you may want to consider using a modern replacement carburetor or an aftermarket Quadrajet clone to save time and money. Ultimately, the choice is yours, and your decision should be based on your project goals, budget, and the level of authenticity you desire.

Details:

Rebuilt by Thomas High Performance Quadrajet. Idle circuit slightly resized for better idle adjustments Main well plugs sealed with our special epoxy Steel parts are electroplated bright zinc to prevent rusting. We include an installation and tuning sheet with each order. If something isn't right, please let us know.

This is a completely rebuilt 1977 Pontiac Trans Am 800 cfm Rochester Quadrajet carburetor to fit most 77-79 model's with the 403 engine. All new USA made parts include float, high flow ethanol resistant accelerator pump and ball, gaskets, hoses, seals, secondary cam, springs, fuel filter, gasket, needle seat. Each carb is completely disassembled including the idle down tubes. Bronze throttle shaft bushings installed to prevent vacuum leaks at idle.

Eastwood coatings on air horn and bowl castings.

part #: 17057553 prices

• $22.75-$124.99

specifications carbcoon:

• for makes: Pontiac, Rochester
• for years: 1977
• brand: Rochester
• mpn: 17057553
• choke type: Hot Air
• type: Carburetor
• mounting flange type: Spread Bore
• features: Quadrajet

shipping carbcoon:

• class: Economy
• cost: $28.00
• carrier: UPS
• service: UPS Ground Saver
• type: Fixed
• transit: 5-11 Days

offer carbcoon:

• best offers: True
• started: March 20, 2025
• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1

general carbcoon:

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

returns carbcoon:

• policy: No Returns

payments carbcoon:

• other
• credit card: Discover
• wallet: Paypal

seller carbcoon:

• # reviews: 452
• city: Bulverde, Texas
• rating: 99.0%

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