HOLLEY Carburetor Barrel Original/us V8 4BBL LIST-N8977 572 387

( Brand: Holley ), ( Type: Carburetor ), ( Manufacturer Warranty: No ), ( Items Included: As Seen In Pictures ), ( Manufacturer Part Number: N8977 ), ( Material: Aluminum, Steel ), ( Vintage Part: Yes ), ( Country Of Origin: United States ), ( Placement On Vehicle: Front )

Review HOLLEY Original/us V8 Carburetor Barrel 572 387

Holley N8977 Original/US V8 4bbl Carburetor - 572 cfm, 387 Length

The Holley N8977 Original/US V8 4bbl Carburetor is a high-performance, classic fuel delivery system designed for 572 cfm (cubic feet per minute) airflow applications. This carburetor is a part of Holley's line of US V8 4-barrel carburetors, which are renowned for their reliability, consistency, and ability to deliver exceptional power and torque to American V8 engines.

This particular model, the N8977, is a 387 length carburetor, making it suitable for various applications. Its barrel design is unique to this model, and it features a classic Holley look with a traditional 4-barrel configuration. The carburetor is constructed using high-quality materials, including a robust cast aluminum base and a durable, corrosion-resistant barrel.

The N8977 comes with several features to optimize its performance. It includes a Holley 0-8000 vacuum secondary system, which provides excellent idle quality and offers improved power at low engine speeds. Additionally, it features a Holley's proven accelerator pump system, which ensures excellent throttle response and quick fuel delivery during acceleration.

Holley's N8977 carburetor is also equipped with a float bowl venturi system that helps maintain consistent fuel level and prevents vapor lock. Furthermore, it offers excellent adjustability, with multiple jets, needles, and emulsion tubes available to fine-tune the fuel mixture for optimal engine performance.

In summary, the Holley N8977 Original/US V8 4bbl Carburetor is a high-performance, reliable, and adjustable fuel delivery system designed for 572 cfm applications. Its 387 length and classic 4-barrel configuration make it an excellent choice for various V8 engine setups, while its features, such as the vacuum secondary system, accelerator pump system, and float bowl venturi system, ensure consistent performance and excellent power delivery.

The Holley N8977 Original/US V8 4bbl Carburetor is a popular choice among automobile enthusiasts for its ability to provide optimal engine performance in vintage and muscle cars. Here are some pros and cons of buying this carburetor:

1. Authentic Design: This carburetor is an exact replica of the original Holley 4-barrel carburetors used in 1960s and 1970s muscle cars. It offers an authentic look and feel, making it a desirable choice for car restoration projects.

2. High Performance: The Holley N8977 is known for its excellent fuel delivery and air flow characteristics, resulting in improved engine performance, increased horsepower, and better fuel efficiency.

3. Easy Installation: The carburetor comes with all necessary hardware for a straightforward installation process. Holley also provides detailed instructions and technical support to help with any installation concerns.

4. Customizable: The N8977 carburetor can be customized to meet specific engine requirements. Holley offers a wide range of options, including different emblem styles, venturi sizes, and fuel bowls.

5. Durable: The carburetor is constructed using high-quality materials, ensuring long-lasting performance and reliability.

1. Cost: The Holley N8977 is a high-performance carburetor, and its price tag reflects its advanced engineering and design. It may be more expensive than other aftermarket carburetors.

2. Complexity: Compared to modern fuel injection systems, carburetors require more maintenance and fine-tuning to ensure optimal engine performance. This may not be ideal for those who are less mechanically inclined or prefer a simpler solution.

3. Fuel Economy: The N8977 carburetor may not offer the same fuel efficiency as modern fuel injection systems. This could result in higher gasoline consumption and increased operating costs.

The Holley N8977 Original/US V8 4bbl Carburetor is a high-performance, authentic, and customizable option for those restoring vintage or muscle cars. Its advantages include improved engine performance, easy installation, and durability. However, its high cost, complexity, and lower fuel efficiency are potential drawbacks.

If you are looking for an authentic and high-performance carburetor for your vintage or muscle car, the Holley N8977 is an excellent choice. Its advantages outweigh the disadvantages for those who prioritize engine performance and classic appearance. However, if you are on a tight budget or prefer a simpler solution, there may be other aftermarket carburetors that better suit your needs.

part # n8977 prices

• $170.63-$400.00

specifications carbcaddie:

• brand: Holley
• type: Carburetor
• manufacturer warranty: No
• items included: As Seen In Pictures
• manufacturer part number: N8977
• material: Aluminum, Steel
• vintage part: Yes
• country of origin: United States
• placement on vehicle: Front

seller carbcaddie:

• rating: 96.4%
• # reviews: 216

payments carbcaddie:

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

returns carbcaddie:

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

general carbcaddie:

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

shipping carbcaddie:

• service: USPS Ground Advantage
• carrier: USPS
• type: Fixed
• transit: 5-12 Days
• cost: $19.95
• class: Standard

offer carbcaddie:

• quantity: 1
• sold: 0
• options: Ship-to-home
• started: October 24, 2025
• availability: In Stock
• best offers: True

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