HOLLEY 6R5311B Carburetor 1BBL

( Brand: Holley ), ( Manufacturer Part Number: 6R5311B ), ( Type: Carburetor ), ( Placement On Vehicle: Front, Left, Rear, Right )

Review HOLLEY Genuine Carburetor Parts

The Holley 6R5311B Carburetor is a 1-barrel, street performance carburetor, designed to deliver exceptional power and fuel efficiency for your muscle car, hot rod, or custom project. This carburetor is part of Holley's Street Avenger series, which is known for its reliable and easy-to-tune design.

The 6R5311B features a 670 CFM primary venturi, suitable for small block Chevy and GM applications. The secondary venturi measures 750 CFM, providing ample fuel for high RPM power. The carburetor comes with a 1.6:1 secondary ratio and Holley's famous HP series accelerator pump. This design ensures smooth transition from idle to wide-open throttle, making it an ideal choice for both daily drivers and high-performance applications.

The Holley 6R5311B is constructed with a high-quality aluminum body and stainless steel components. Its hard anodized aluminum adjustment plates and fuel bowls offer superior corrosion resistance and durability. The carburetor also includes a built-in electric choke, making cold starts easier and more reliable.

This carburetor is designed for easy tuning with a 4-corner adjustment system. The primary and secondary idle mixtures, as well as the secondary enrichment circuits, can all be easily adjusted using the external screws. Additionally, the Holley Terminal Velocity Secondary (TVS) system can be added to enhance the carburetor's performance, providing a more consistent idle and improved fuel atomization.

The Holley 6R5311B comes with a 14-inch long, padded mounting pad and necessary hardware for a secure installation. It also features a 3/8 NPT threaded fuel inlet and a 1 1/8-inch throttle opening. The carburetor is compatible with various fuel systems, including returnless and return-style systems, as well as EFI fuel systems with a proper adapter.

In summary, the Holley 6R5311B Carburetor is a high-performance, durable, and easy-to-tune solution for your 1-barrel muscle car or hot rod application. Its reliable design, combined with its exceptional power delivery and fuel efficiency, makes it an excellent choice for both daily drivers and high-performance enthusiasts.

The Holley 650CFM 1bbl Carburetor 650-651-11B (6511B), part number 650-651-11B, is a popular choice among automotive enthusiasts for its reliability and performance enhancement in various applications. This carburetor is suitable for street rods, muscle cars, and hot rods, among other vehicles. Here are some pros and cons to help you make an informed decision about purchasing this carburetor:

1. High-performance: The Holley 650CFM 1bbl Carburetor is known for its excellent performance. It offers excellent fuel atomization, which results in a smooth idle and improved throttle response.

2. Versatile: The Holley 650CFM 1bbl Carburetor is suitable for a wide range of applications, including gasoline engines, EFI conversions, and nitrous applications.

3. Easy to install: The Holley 650CFM 1bbl Carburetor comes with a detailed instruction manual and easy-to-install features, making it a popular choice among DIY enthusiasts.

4. Durable: The carburetor is made of high-quality materials, including billet aluminum and stainless steel, which makes it durable and resistant to corrosion.

5. Customizable: The Holley 650CFM 1bbl Carburetor is highly customizable. It offers various options for jetting, air cleaners, and other accessories, allowing users to fine-tune their engine for optimal performance.

1. Cost: The Holley 650CFM 1bbl Carburetor is more expensive compared to other carburetors in the market. This could be a significant drawback for those on a tight budget.

2. Complexity: The Holley 650CFM 1bbl Carburetor may be more complex to install and tune compared to other carburetors, especially for those without extensive experience in carburetor tuning.

3. Requires regular maintenance: Like any other carburetor, the Holley 650CFM 1bbl Carburetor requires regular maintenance to ensure optimal performance. This may include regular jetting adjustments, float adjustments, and other maintenance tasks.

In conclusion, the Holley 650CFM 1bbl Carburetor is an excellent choice for those seeking high-performance and versatility in their vehicle's engine. Its durability, customizability, and ease of installation make it a popular choice among automotive enthusiasts. However, its cost and complexity could be significant drawbacks for some. Ultimately, the decision to purchase the Holley 650CFM 1bbl Carburetor depends on your specific needs, budget, and level of experience in carburetor tuning.

If you are looking for a high-performance, reliable, and versatile carburetor for your vehicle, the Holley 650CFM 1bbl Carburetor is an excellent choice. However, it is essential to consider the cost and complexity of the installation and tuning process before making a purchase. If you are on a tight budget or lack experience in carburetor tuning, it may be worth considering other options that are more affordable and easier to install. Overall, the Holley 650CFM 1bbl Carburetor is a top-quality carburetor that offers excellent performance and customizability, making it a worthwhile investment for many automotive enthusiasts.

Details:

This listing is 1 genuine Holley carburetor. Selling as is for parts.

part #: 6r5311b prices

• $16.99-$59.00

specifications hubcago:

• brand: Holley
• mpn: 6r5311b
• type: Carburetor
• placement on vehicle: Front, Left, Rear, Right

returns hubcago:

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

general hubcago:

• condition: For parts or not working
• Wheels, Tires Parts > Wheel Hub Caps, Caps Trim Rings > Wheel Hub Caps Trim Rings

offer hubcago:

• options: Ship-to-home
• availability: In Stock
• started: January 9, 2026
• quantity: 1
• sold: 0

seller hubcago:

• city: Frederick, Maryland
• rating: 100.0%
• # reviews: 29891

shipping hubcago:

• service: USPS Ground Advantage
• class: Standard
• cost: $0.00
• type: Fixed
• transit: 4-8 Days
• carrier: USPS

payments hubcago:

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