ROCHESTER B5059-235 Carburetor 1-BARREL 261 6-CYLINDER

( Brand: Rochester ), ( Manufacturer Part Number: B5059-235 ), ( Type: Chevy Carb ), ( Oe/oem Part Number: 1951 1952 1953 1954 1955 1956 1957 1958 )

Review ROCHESTER Model 1-barrel Carburetor Chevrolet Gmc 235 261 6-cylinder fits 1950–1959

The Rochester B5059-235 1-barrel carburetor is a classic automotive component that was commonly used on 1950-1959 Chevrolet and GMC vehicles equipped with the 235 cubic inch, 6-cylinder engine. This carburetor is a vital part of the engine's fuel delivery system, ensuring optimal performance and efficient combustion.

The B5059-235 carburetor is a single-barrel design, meaning it utilizes a single throttle body and intake manifold port. This setup offers responsive acceleration and good fuel economy, making it a popular choice for drivers who value both performance and economy. The carburetor features a venturi design, which creates a vacuum that draws fuel into the engine for combustion.

This Rochester carburetor comes with several key features that make it a reliable and effective component for 1950s Chevrolet and GMC engines. It includes a vacuum secondary system, which uses engine vacuum to enrich the fuel mixture during acceleration, providing smoother and more powerful performance. Additionally, it comes with a power valve, which improves idle stability and reduces engine vibration.

The B5059-235 carburetor is also designed with ease of adjustment in mind, allowing users to fine-tune the fuel mixture for their specific driving conditions. It comes with adjustable idle mixture screws, main jet needle and seat, and power valve adjustments. These adjustments can be made using common hand tools, making it a convenient and accessible option for DIY enthusiasts.

The Rochester B5059-235 1-barrel carburetor is a high-quality replacement part for original equipment on 1950-1959 Chevrolet and GMC 6-cylinder engines. It is manufactured to meet or exceed OEM specifications, ensuring reliable and long-lasting operation. The carburetor is also backed by a 12-month limited warranty, providing peace of mind and protection against manufacturing defects.

In conclusion, the Rochester B5059-235 1-barrel carburetor is an essential component for 1950s Chevrolet and GMC vehicles with the 235 cubic inch, 6-cylinder engine. It offers responsive performance, good fuel economy, and ease of adjustment, making it a popular choice for classic car enthusiasts. With its high-quality manufacturing and 12-month limited warranty, this carburetor is a reliable and effective solution for maintaining the performance and longevity of your classic vehicle.

The Rochester B5059-235 1-barrel carburetor is a popular choice for restoring or rebuilding 1950-1959 Chevrolet and GMC 6-cylinder engines. Here are some pros and cons to help you make an informed decision:

1. Authenticity: This carburetor is original equipment for the specified Chevrolet and GMC models, ensuring a correct fit and authentic look.

2. Availability: The B5059-235 is widely available from various suppliers, making it easier to find and purchase.

3. Support: There is a large community of enthusiasts and restoration specialists who can offer advice, tips, and resources for installing and tuning this carburetor.

4. Performance: Many users report improved engine performance and drivability after installing this carburetor.

5. Cost-effective: Compared to some aftermarket options, the B5059-235 can be a cost-effective choice for those on a budget.

1. Restoration needed: Depending on the condition of the used carburetor, you may need to invest time and money into restoring it to working order.

2. Adjustments required: Properly tuning this carburetor for optimal performance can be a complex and time-consuming process.

3. Limited compatibility: This carburetor is specific to the 1950-1959 Chevrolet and GMC 6-cylinder engines. Those with different engines or years may need to look for alternative options.

4. Potential for leaks: As with any carburetor, there is a risk of fuel leaks that could require repairs or replacement.

If you're looking for an authentic, cost-effective, and widely available option for restoring or rebuilding a 1950-1959 Chevrolet or GMC 6-cylinder engine, the Rochester B5059-235 1-barrel carburetor could be an excellent choice. However, be prepared for the potential need for restoration, adjustments, and ongoing maintenance to ensure optimal performance.

Before purchasing, make sure to research the specific condition and requirements of the used carburetor. Consider seeking advice from restoration specialists or online communities to ensure a successful installation and tuning process. Additionally, set aside time and budget for any necessary restoration or tuning work.

Details:

Core for rebuilding or parts. Please verify pics match your application. Throttle bore measures 1-9/16 and mounting bolt holes to measure Carb core appears to be mostly complete.

See pics for condition. Linkage moves free. Rochester model B 1-barrel carburetor, no ID tag or stamp number.

part #: b5059235 prices

• $101.00-$164.00

specifications carbcoon:

• for makes: Chevrolet, Gmc, Rochester
• for years: 1950-1959
• brand: Rochester
• mpn: B5059-235
• type: Chevy Carb
• oe/oem part number: 1951 1952 1953 1954 1955 1956 1957 1958

payments carbcoon:

• wallet: Google-pay
• other
• credit card: Diners-club

general carbcoon:

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

offer carbcoon:

• best offers: True
• started: November 13, 2025
• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1

shipping carbcoon:

• type: Calculated
• service: USPS Ground Advantage
• cost: $0.00
• carrier: USPS
• class: Standard
• transit: 2-6 Days

seller carbcoon:

• city: Sheboygan Falls, Wisconsin
• rating: 100.0%
• # reviews: 31978

returns carbcoon:

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

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