ROCHESTER 17056140 General Gm Carburetor 7-25 2535AFF2 2-BARREL V8

( Manufacturer Part Number: 17056140 ), ( Choke Type: Mechanical ), ( Type: Carburetor ), ( Manufacturer Warranty: No ), ( Make: Gm ), ( Placement On Vehicle: Front )

Review ROCHESTER 7-25 Used General Motors Gm 2-barrel Carburetor V8 fits 1975–1976

The Rochester 17056140 7-25 General Motors 2-barrel carburetor, also known as the 2535 AFF2 model, is a classic automotive component designed for use in V8 engines manufactured by General Motors. This carburetor is a 2-barrel design, meaning it utilizes two separate barrels to supply fuel to each cylinder bank, enhancing engine performance and efficiency.

The 17056140 carburetor boasts a number of desirable features. It comes with a powerful vacuum secondary system, which helps to ensure optimal fuel delivery under various engine loads and conditions. This system allows the carburetor to provide an additional fuel mixture to the engine during periods of heavy acceleration, improving overall power and responsiveness.

The carburetor's meticulously engineered design includes a fine-tuned accelerator pump, which ensures a quick and smooth response when pressing the accelerator pedal. It also features a precisely calibrated idle mixture control, allowing the engine to maintain a stable idle speed even in various environmental conditions.

This Rochester carburetor is constructed from high-quality materials, including durable cast aluminum housing and corrosion-resistant internal components. Its robust design ensures reliable performance over extended periods, making it an excellent choice for both restoration projects and daily driven vehicles.

The 2535 AFF2 model is also designed for ease of installation and maintenance. It comes with an accessory bracket to simplify the mounting process, while its adjustable primary and secondary idle mixture screws enable users to fine-tune the carburetor for optimal engine performance.

In summary, the Rochester 17056140 7-25 General Motors 2-barrel carburetor is a high-performance, durable, and easy-to-install component that is perfect for enhancing the power and efficiency of your V8 engine. Its sophisticated design, including a vacuum secondary system and fine-tuned accelerator pump, ensures smooth and responsive engine performance under various conditions. With its robust construction and ease of maintenance, this carburetor is an excellent investment for any classic car enthusiast or automotive restoration project.

Pros and Cons of buying a Rochester 17056140 2-Barrel Carburetor

The Rochester 17056140 2-Barrel Carburetor is a popular choice for V8 engine vehicles. This carburetor is known for its durability and performance. However, like any other automotive part, it comes with its advantages and disadvantages. In this article, we will discuss the pros and cons of buying a Rochester 17056140 2-Barrel Carburetor.

1. Durability: The Rochester 17056140 carburetor is known for its robust construction. It is made of high-quality materials that can withstand extreme temperatures and heavy usage.

2. Fuel Efficiency: This carburetor delivers an excellent fuel-air mixture, leading to improved fuel efficiency. It helps in reducing the amount of fuel wasted, resulting in cost savings.

3. Performance: The Rochester 17056140 carburetor offers excellent performance. It provides smooth and consistent idling, quick throttle response, and excellent power delivery throughout the RPM range.

4. Easy Installation: The installation process of this carburetor is relatively straightforward. It comes with clear instructions and all necessary hardware, making it an easy DIY project for many.

1. Complexity: Compared to modern fuel injection systems, carburetors can be complex to understand and maintain. The Rochester 17056140 carburetor is no exception.

2. Maintenance: Carburetors require regular maintenance to ensure optimal performance. This includes adjusting the idle mixture, synchronizing the carburetors, and checking the floats and jets.

3. Emissions: Carburetors are known to produce higher emissions compared to modern fuel injection systems. This can be a concern for those looking to meet strict emissions standards.

4. Fuel Economy: While the Rochester 17056140 carburetor offers improved fuel efficiency compared to older carburetors, it still cannot match the fuel economy of modern fuel injection systems.

The Rochester 17056140 2-Barrel Carburetor is a reliable and durable choice for V8 engine vehicles. Its advantages include excellent fuel efficiency, smooth performance, and easy installation. However, its disadvantages, such as complexity, maintenance requirements, emissions, and fuel economy, must be considered before making a purchase. Ultimately, the decision to buy this carburetor depends on the specific needs and preferences of the vehicle owner.

If you are looking for a durable and high-performing carburetor for your V8 engine vehicle, the Rochester 17056140 2-Barrel Carburetor is an excellent choice. However, if you are concerned about maintenance requirements, emissions, and fuel economy, you may want to consider other options, such as modern fuel injection systems. Ultimately, it is essential to weigh the pros and cons carefully before making a purchase.

Details:

See pictures for condition, and if any missing parts. Lot Carb-25 This is a Rochester 2 Jet carb for parts, or rebuild. 1975-1976 Pontiac. Not in working condition now.

part #: 17056140 prices

• $22.08-$50.00

specifications carbcoon:

• for makes: Rochester
• for years: 1975-1976
• mpn: 17056140
• choke type: Mechanical
• type: Carburetor
• manufacturer warranty: No
• make: Gm
• placement on vehicle: Front

offer carbcoon:

• best offers: True
• sold: 0
• started: June 9, 2025
• quantity: 1
• availability: In Stock
• options: Ship-to-home

general carbcoon:

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

payments carbcoon:

• wallet: Apple-pay
• credit card: Discover
• other

seller carbcoon:

• city: Cedar Rapids, Iowa
• rating: 99.6%
• # reviews: 4162

shipping carbcoon:

• class: Expedited
• type: Fixed
• carrier: USPS
• cost: $16.00
• service: USPS Priority Mail Medium Flat Rate Box
• transit: 4-11 Days

returns carbcoon:

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

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