fits model: 300. make: Buick, Rochester. year: 1966.

( Brand: Rochester ), ( Manufacturer Part Number: 7026046 ), ( Type: Carburetor )
The Rochester 7026046 2-barrel carburetor is a classic automotive component designed specifically for use with the 1966 Buick 300 V-8 engine. This carburetor, part of the 2-jet 2GC series, is a two-barrel design, meaning it features two separate barrels instead of the single barrel found in some carburetors. This configuration allows for increased airflow and improved performance.
The 7026046 carburetor is equipped with the 2-jet design, which utilizes two separate fuel jets to atomize the fuel before it enters the engine. This results in a more efficient fuel-air mixture, leading to improved combustion and increased power output. The jets are adjustable, allowing for fine-tuning of the carburetor to optimize performance for various driving conditions.
The carburetor comes with a mechanical fuel pump, which is located at the base of the carburetor and is responsible for supplying fuel from the fuel tank to the carburetor. The pump is driven by the engine's serpentine belt, ensuring a steady supply of fuel to the carburetor.
The 7026046 carburetor also features a vacuum secondary system, which is designed to add additional fuel to the engine under certain conditions, such as wide-open throttle or high RPMs. This system helps to ensure that the engine receives the optimal amount of fuel for optimal performance.
The carburetor is constructed from high-quality materials, including cast aluminum, which provides excellent heat dissipation and durability. The exterior of the carburetor is finished in a shiny chrome plating, which not only looks great but also provides an additional layer of protection against the elements.
The Rochester 7026046 2-barrel carburetor is a high-performance component that is well-suited for use in the 1966 Buick 300 V-8 engine. Its two-barrel design and 2-jet fuel system provide improved airflow and efficient fuel atomization, leading to increased power and better overall performance. The mechanical fuel pump and vacuum secondary system ensure a steady fuel supply and optimal combustion under various driving conditions. With its durable construction and classic design, this carburetor is a must-have for any serious Buick enthusiast.
The Rochester 7026046 2-barrel carburetor is a popular choice for restoring or upgrading a 1966 Buick 300 V-8 engine. This carburetor is a 2-jet, 2GC model, and offers both advantages and disadvantages.
Advantages:1. Authenticity: This carburetor is an original equipment manufacturer (OEM) part for Buick 300 V-8 engines, making it an ideal choice for those looking to maintain authenticity or restore their classic vehicle to its original specifications.
2. Proven Performance: The Rochester 7026046 carburetor has been used in Buick engines for decades and is known for its reliable performance. It offers a smooth idle and consistent throttle response, making it a popular choice among enthusiasts.
3. Availability: This carburetor is widely available from various suppliers, making it a convenient option for those looking to make a purchase.
Disadvantages:1. Cost: Original OEM carburetors, such as the Rochester 7026046, can be more expensive than aftermarket alternatives. This can be a significant consideration for those working on a tight budget.
2. Complexity: Carburetors, in general, can be complex systems to work on, and the Rochester 7026046 is no exception. Installing and tuning this carburetor may require some technical expertise and experience.
3. Vulnerability to Fuel Quality: Carburetors can be sensitive to the quality of the fuel they are fed. If the fuel contains impurities or contaminants, it can negatively impact the performance of the carburetor and, ultimately, the engine.
Conclusion:The Rochester 7026046 2-barrel carburetor offers several advantages for those looking to upgrade or restore a 1966 Buick 300 V-8 engine. Its proven performance, authenticity, and availability make it a popular choice among enthusiasts. However, its cost, complexity, and vulnerability to fuel quality are important considerations that must be weighed against the benefits. Ultimately, the decision to purchase this carburetor depends on the specific needs, budget, and expertise of the individual.
Recommendation:If authenticity and proven performance are top priorities, and the budget allows, the Rochester 7026046 2-barrel carburetor is a solid choice for a 1966 Buick 300 V-8 engine. For those on a tighter budget or seeking a simpler solution, aftermarket alternatives may be worth exploring. Regardless of the choice, proper installation, tuning, and maintenance are essential for optimal performance.
See pics for condition. Linkage moves free. Please verify part number and pics match your application. Rochester 2-Jet 2GC 2-barrel carburetor, ID tag number 7026046.
Throttle bores measure 1-7/16 and base mounting bolt pattern to measures 1-7/8 by 3-1/4. Carb core appears to be mostly complete, missing vent cap. Core for rebuilding or parts.