HOLLEY 6501-6502 Carburetor Secondary Block Cfm 4150 4-BARREL 4776

( Brand: Holley ), ( Type: Double Pumper ), ( Manufacturer Part Number: 6501-6502 ), ( Country Of Origin: United States )

Review HOLLEY 4150 4-barrel Carburetor Secondary Metering Block Cfm 6501 6502 fits 600

The Holley 6501-6502 4150 4-barrel 4776 carburetor secondary block is a high-performance automotive component designed for use in racing and high-performance applications. This secondary block is specifically designed to work with Holley's 6501 and 6502 4150 4-barrel carburetors, which are known for their reliability and ability to deliver consistent and powerful fuel delivery.

This secondary block offers a flow rate of 600 CFM, making it suitable for use in larger engines that require increased fuel delivery. The 4776 size of the secondary block is ideal for applications where increased fuel capacity is required, such as high-horsepower engines or those that operate under high boost conditions.

The secondary block is constructed of high-quality aluminum, which is both lightweight and durable. It features a polished finish that not only looks great but also helps to reduce air turbulence and improve fuel atomization. The block also includes Holley's unique design for secondary venturi configuration, which helps to improve throttle response and overall engine performance.

The Holley 6501-6502 4150 4-barrel 4776 carburetor secondary block includes all necessary hardware for installation, including mounting bolts and gaskets. It is also compatible with Holley's various fuel system accessories, such as fuel pressure regulators and fuel pumps, making it a versatile and customizable solution for high-performance applications.

In summary, the Holley 6501-6502 4150 4-barrel 4776 carburetor secondary block is a high-performance component designed for use in racing and high-performance applications. It offers a flow rate of 600 CFM, suits 4776 size applications, and is constructed of high-quality aluminum. With its polished finish, unique secondary venturi design, and compatibility with various fuel system accessories, this secondary block is an excellent choice for those looking to maximize the performance of their engine.

The Holley 6501-6502 4150 4-barrel 4776 carburetor secondary block, with a secondary volume of 600 CFM, is a popular choice among performance enthusiasts for their hot rods and muscle cars. This carburetor offers several advantages and disadvantages, which are discussed below.

1. High Air Flow: The Holley 6501-6502 4-barrel carburetor delivers an impressive airflow of 600 CFM, making it suitable for high-performance applications.

2. Easy to Install: The secondary block design makes it relatively easy to install, as it replaces the factory intake manifold and carburetor in one piece.

3. Improved Performance: The Holley carburetor is known for its excellent metering capabilities, providing crisp throttle response and improved fuel efficiency.

4. Customizable: Holley offers a wide range of options to fine-tune the carburetor to your specific engine setup, including various jet sizes, emulsion tubes, and power valves.

1. Complexity: Compared to a standard carburetor, the Holley 4-barrel setup can be more complex, requiring more time and expertise to install and tune properly.

2. Cost: The Holley 6501-6502 4150 4-barrel carburetor and secondary block setup is more expensive than a factory carburetor and intake manifold.

3. Maintenance: The Holley carburetor may require more frequent maintenance to ensure optimal performance, including regular jetting adjustments and float level checks.

The Holley 6501-6502 4150 4-barrel 4776 carburetor secondary block is an excellent choice for hot rod and muscle car enthusiasts seeking improved performance and high airflow. While it comes with some disadvantages, such as complexity, cost, and maintenance requirements, the advantages often outweigh the drawbacks for those looking to enhance their engine's power and responsiveness.

If you're considering purchasing a Holley 6501-6502 4150 4-barrel carburetor secondary block, ensure that you have a solid understanding of the installation process and are willing to invest the necessary time and resources to properly tune and maintain the system. Additionally, consider consulting with a professional carburetor tuner or mechanic to help you optimize the setup for your specific engine configuration.

part # 65016502 prices

• $33.99-$48.89

specifications carbcaddie:

• for models: 600
• brand: Holley
• type: Double Pumper
• manufacturer part number: 6501-6502
• country of origin: United States

offer carbcaddie:

• best offers: True
• availability: In Stock
• started: April 1, 2026
• options: Ship-to-home
• quantity: 1
• sold: 0

shipping carbcaddie:

• type: Calculated
• service: USPS Ground Advantage
• cost: $0.00
• class: Standard
• carrier: USPS
• transit: 3-8 Days

returns carbcaddie:

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

general carbcaddie:

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

payments carbcaddie:

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• other

seller carbcaddie:

• rating: 100.0%
• # reviews: 33926

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