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  3. ROCHESTER 2GC6566

ROCHESTER 2GC6566 Carburetor 2-BARREL V-8

fits model: 330. make: Oldsmobile, Olds, Rochester. year: 1965–1966.

2gc6566 Rochester Rebuilt 2-barrel Carburetor 2gc 1965 1966 Oldsmobile Olds 330 V-8

( Brand: Rochester ), ( Manufacturer Part Number: 2GC6566 ), ( Type: Carburetor ), ( Oe/oem Part Number: 7025058 )

Review ROCHESTER Rebuilt 2-barrel Carburetor 2gc Oldsmobile Olds V-8 fits 330 1965–1966

The Rochester 2GC6566 2-barrel carburetor is a vintage automotive component designed for use in Oldsmobile vehicles equipped with the OLDS 330 V-8 engine during the years 1965 and 1966. This carburetor, manufactured by Rochester Products, Inc., is a crucial element in the fuel delivery system of these classic cars.

The 2GC6566 carburetor is a 2-barrel design, meaning it utilizes two separate barrels for intake and fuel mixture. Each barrel contains an intake manifold port, a float bowl, and an intake valve. The carburetor's primary function is to meter the correct amount of fuel and air mixture into the engine's cylinders for efficient combustion.

The carburetor features a unique design, with a rectangular shape and a prominent air cleaner base. The top of the carburetor is adorned with a chrome plated venturi area, which is where the intake manifold ports connect to the carburetor. The venturi shape helps to create a vacuum, allowing the fuel to be sucked into the engine.

The carburetor is equipped with a mechanical fuel pump, which is located at the bottom of the unit. The pump draws fuel from the fuel tank and pressurizes it, allowing it to flow through the carburetor and into the engine. The fuel pump is driven by the engine's camshaft through a drive gear.

The carburetor is also equipped with various adjustment features, allowing the user to fine-tune the fuel mixture for optimal engine performance. These adjustments include the idle mixture screws, which control the fuel mixture during idle conditions, and the main jet and power jet, which control the fuel mixture during cruising and wide-open-throttle conditions.

The Rochester 2GC6566 2-barrel carburetor is a highly valued component among enthusiasts of Oldsmobile vehicles. Its classic design, combined with its functionality and adjustability, makes it a popular choice for those looking to restore or maintain their vintage automobiles. This carburetor is a critical piece in the puzzle of bringing a classic Oldsmobile back to life.

The Rochester 2GC6566 2-barrel carburetor is a common choice for Oldsmobile Olds 330 V-8 engines manufactured between 1965 and 1966. Like any automotive part, this carburetor comes with its own set of advantages and disadvantages.

Advantages:

1. Authenticity: Choosing an original equipment manufacturer (OEM) carburetor, such as the Rochester 2GC6566, ensures that you are using the same component that came installed on your Oldsmobile when it was new. This can be beneficial for maintaining the originality and value of your vehicle.

2. Reliability: OEM parts, like the Rochester 2GC6566, are often designed specifically for the vehicle and engine in question. As a result, they may be more reliable than aftermarket alternatives, which could save you time and money in the long run.

3. Performance: While some enthusiasts might prefer high-performance aftermarket carburetors, the Rochester 2GC6566 offers a more stock or factory-like driving experience. This could be desirable for those who value the original character and feel of their Oldsmobile.

Disadvantages:

1. Cost: OEM carburetors, like the Rochester 2GC6566, can be more expensive than their aftermarket counterparts. This is due to the fact that they are produced in smaller quantities and are typically only sold through authorized dealers.

2. Availability: The availability of OEM carburetors, especially for older vehicles, can be limited. This may require you to search extensively or wait for a long time to obtain one.

3. Complexity: Older carburetors, like the Rochester 2GC6566, can be more complex to tune and maintain than modern alternatives. This may require additional time, expertise, or resources.

Conclusion:

The decision to purchase a Rochester 2GC6566 2-barrel carburetor for your Oldsmobile Olds 330 V-8 ultimately depends on your priorities and preferences. If maintaining the originality and reliability of your vehicle is a priority, then an OEM carburetor like the Rochester 2GC6566 may be the best choice. However, if cost, availability, or complexity are concerns, you may want to consider an aftermarket alternative.

Recommendation:

If you are committed to using an OEM carburetor, I would recommend contacting authorized Oldsmobile dealerships or parts suppliers to check their availability and pricing for the Rochester 2GC6566. If cost is a concern, you may also want to explore rebuilt or remanufactured OEM carburetors, which can offer a more affordable alternative while still providing the benefits of an authentic OEM part.

Details:

Carb is dinged/nicked up and linkage bent from handling. Please verify pics match your application. See pics for condition. Rebuilt Rochester 2gc 2-barrel carburetor, no ID tag or stamp number.

It is dirty and shows some patina from sitting on the shelf. Throttle bores measure 1-11/16 and mounting bolt holes to 2 by 3-5/8. Choke cover and threads are damaged. Will need some work before use.

part #: 2gc6566 prices

  • $67.50-$85.50

specifications carbcoon:

  • for models: 330
  • for makes: Oldsmobile, Olds, Rochester
  • for years: 1965-1966
  • brand: Rochester
  • mpn: 2gc6566
  • type: Carburetor
  • oe/oem part number: 7025058

returns carbcoon:

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

offer carbcoon:

  • sold: 0
  • quantity: 1
  • availability: In Stock
  • started: November 17, 2025
  • best offers: True
  • options: Ship-to-home

seller carbcoon:

  • rating: 100.0%
  • city: Sheboygan Falls, Wisconsin
  • # reviews: 32037

shipping carbcoon:

  • cost: $0.00
  • service: USPS Ground Advantage
  • class: Standard
  • type: Calculated
  • carrier: USPS
  • transit: 12-19 Days

general carbcoon:

  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetors
  • condition: For parts or not working

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for models: 330, for makes: oldsmobile, olds, rochester, for years: 1965-1966, type: carburetor, oe/oem part number: 7025058,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, sku: 8968712058585771,

Rochester 2GC6566 Is Similar To:

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2 offers $67.50–$85.50 USD
  • Offer #1: $67.50 price + $0.00 shipping estimate = $67.50* total. Core for rebuilding or parts. Carb core appears to be mostly complete.FREE SHIPPING
  • Offer #2: $85.50 price + $0.00 shipping estimate = $85.50* total. Carb is dinged/nicked up and linkage is bent from handling.FREE SHIPPING

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