HOLLEY 2977-2 Barrel Carburetor

( Brand: Holley ), ( Manufacturer Part Number: 2977-2 ), ( Choke Type: Mechanical ), ( Type: Carburetor ), ( Mounting Flange Type: Square Bore ), ( Material: Aluminum ), ( Country/region Of Manufacture: United States ), ( Vintage Part: Yes ), ( Performance Part: No )

Review HOLLEY Barrel Carburetor List For Parts

The Holley 2977-2 is a high-performance, two-barrel carburetor that is ideal for hot rods, muscle cars, and other high-performance applications. This carburetor features a unique design that delivers excellent fuel economy, smooth idling, and powerful throttle response.

The Holley 2977-2 is a 650 CFM carburetor, which makes it suitable for larger engines that require more fuel flow. It comes with a set of 600 CFM secondary venturi and 570 CFM primary venturi, allowing for fine-tuning of the fuel mixture to optimize engine performance. The carburetor body is made of high-quality aluminum, which not only looks great but also ensures durability and resistance to corrosion.

One of the standout features of the Holley 2977-2 is its advanced vacuum secondary system. This system uses a secondary diaphragm that is vacuum-actuated, allowing for a more consistent and responsive fuel delivery. Additionally, the carburetor comes with a vacuum secondary metering rod, which provides excellent idle quality and improves drivability.

The Holley 2977-2 also includes a number of other performance-enhancing features. It has a removable bowls design, which makes it easier to clean and maintain. The carburetor also includes a built-in fuel pressure regulator, which ensures a consistent fuel pressure and eliminates the need for an external regulator. Furthermore, it comes with a high-performance air cleaner element and a baffled float bowl, which help to reduce fuel spillage and improve fuel economy.

The Holley 2977-2 is easy to install and can be used with a variety of fuel systems, including electric and mechanical fuel pumps. It also comes with a range of mounting hardware and gaskets, making installation a straightforward process. Additionally, the carburetor is compatible with a wide range of engine sizes and configurations, making it a versatile option for hot rods and muscle cars.

In summary, the Holley 2977-2 is a high-performance, two-barrel carburetor that delivers excellent fuel economy, smooth idling, and powerful throttle response. Its advanced vacuum secondary system, removable bowls design, and built-in fuel pressure regulator make it a top choice for hot rods and muscle cars. With its easy installation process and compatibility with a range of fuel systems, the Holley 2977-2 is a must-have for anyone looking to upgrade their car's engine performance.

The Holley 2977-2 is a popular 2-barrel carburetor model known for its performance and versatility in various applications. Below are some pros and cons that can help you decide if this carburetor is suitable for your project.

1. Wide Application: The Holley 2977-2 is suitable for a wide range of applications, including street rods, muscle cars, and hot rods.

2. High-Performance: This carburetor is designed for high-performance applications and can provide excellent throttle response and fuel efficiency.

3. Customizable: Holley offers various options and accessories to customize the 2977-2 carburetor to meet specific engine requirements.

4. Durable: The carburetor is built with high-quality materials and components, ensuring durability and reliability.

5. Easy-to-Tune: The Holley 2977-2 comes with a built-in vacuum secondary system, making it easier to tune for optimal performance.

1. Complexity: Compared to simpler carburetors, the 2977-2 is more complex and requires more time and expertise to install and tune.

2. Expensive: The Holley 2977-2 is more expensive than some other carburetor models due to its high-performance capabilities and versatility.

3. Fuel Economy: While the carburetor is designed for high-performance applications, it may not offer the best fuel economy, especially in comparison to fuel injection systems.

4. Maintenance: The carburetor requires regular maintenance to ensure optimal performance, including adjusting the float levels, syncing the barrels, and checking the vacuum secondary system.

The Holley 2977-2 is an excellent choice for those seeking high-performance and versatility in a carburetor. Its wide application, easy-to-tune features, and durability make it a popular choice among car enthusiasts. However, its complexity, expense, and maintenance requirements are important considerations. Ultimately, the decision to purchase the Holley 2977-2 depends on your specific requirements, budget, and expertise. If you're looking for a high-performance carburetor that can be customized to meet your engine's needs and are willing to invest the time and resources into its installation and maintenance, then the Holley 2977-2 is an excellent choice.

If you're considering purchasing the Holley 2977-2 carburetor, I would recommend thoroughly researching the installation and tuning process to ensure you're prepared for the time and expertise investment. Additionally, consider the cost of any necessary accessories or modifications to meet your engine's specific requirements. Finally, weigh the benefits of the carburetor's high-performance capabilities against its complexity, expense, and maintenance requirements to determine if it's the right choice for your project.

Details:

Donor Vehicle Information: YEAR: MAKE: model: OEM P/N. The manufacturer part number must match your vehicle. OEM part numbers and other fitment information are provided when applicable. For parts or restoration.

Part Fitment. The delivery date is an estimate and not a guarantee. All parts are marked to prevent tampering or false claims. This listing is for one used Holley Carburetor.

Buyer pays return shipping. Please review the photos provided. Most parts are tested and work. Please do your research prior to purchasing.

part #: 29772 prices

• $41.99-$69.00

specifications carbcoon:

• brand: Holley
• mpn: 2977-2
• choke type: Mechanical
• type: Carburetor
• mounting flange type: Square Bore
• material: Aluminum
• country/region of manufacture: United States
• vintage part: Yes
• performance part: No

shipping carbcoon:

• carrier: FedEx
• transit: 4-10 Days
• service: FedEx Ground Economy
• class: Economy
• type: Fixed
• cost: $10.00

seller carbcoon:

• # reviews: 339
• city: Wetumpka, Alabama
• rating: 100.0%

general carbcoon:

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

payments carbcoon:

• other
• wallet: Paypal
• credit card: Diners-club

returns carbcoon:

• policy: No Returns

offer carbcoon:

• started: July 29, 2025
• sold: 0
• availability: In Stock
• best offers: True
• options: Ship-to-home
• quantity: 1

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