HOLLEY 5275-5271 Carburetor Block Cfm 3310 4-BARREL 780

( Brand: Holley ), ( Type: Metering Block ), ( Oe/oem Part Number: 4150 4160 ), ( Manufacturer Part Number: 5275-5271 )

Review HOLLEY 4-barrel Carburetor Primary Metering Block 780 Cfm 5275 5271 fits 750

The Holley 5275-5271 3310 4-barrel carburetor is a high-performance automotive component designed for delivering optimal fuel mixtures to internal combustion engines. This specific model is part of Holley's 500 Series line, which is ideal for engines that require greater airflow and fuel delivery capabilities than standard carburetors.

This 750-780 CFM carburetor features a 3310-series base, making it suitable for various applications, particularly those requiring high-performance tuning. The 4-barrel design ensures efficient fuel distribution to all cylinders, enhancing engine performance and responsiveness.

The Holley 5275-5271 is engineered with a unique vacuum secondary system. This design adds an additional fuel circuit that is activated under vacuum conditions. It provides a significant power boost, especially during acceleration and high RPMs.

The carburetor's primary jets are adjustable, allowing users to fine-tune the fuel mixture according to their engine's specific needs. The secondary jets are also adjustable, enabling further optimization of the fuel mixture for various engine loads and conditions.

Moreover, this Holley carburetor comes with a heavy-duty aluminum base, which enhances its durability and heat dissipation capabilities. The base also features a built-in oil filter and oil pressure sending unit, ensuring easy installation and maintenance.

Additionally, the Holley 5275-5271 3310 4-barrel carburetor includes a high-performance float bowl gasket and a set of adjustable needle and seat jets. These components ensure consistent fuel delivery and help maintain optimal engine performance.

In summary, the Holley 5275-5271 3310 4-barrel carburetor is a high-performance, adjustable component designed to deliver optimal fuel mixtures to internal combustion engines. Its 4-barrel design, vacuum secondary system, and adjustable primary and secondary jets make it an excellent choice for high-performance applications. The durable aluminum base, included accessories, and ease of installation further make this carburetor an attractive option for automotive enthusiasts and professional mechanics.

The Holley 5275-5271 3310 4-barrel carburetor is a popular choice for automotive enthusiasts looking to upgrade their engine's fuel delivery system. This carburetor comes in a block design, which means that the intake manifold and carburetor are integrated into a single unit. It is available in two CFM ratings: 750 CFM and 780 CFM.

1. Performance: Holley carburetors are known for their high-performance capabilities. This 4-barrel carburetor delivers consistent fuel flow to the engine, resulting in improved throttle response and power output.

2. Design: The integrated intake manifold and carburetor design of the Holley 5275-5271 reduces the number of components in the intake system, making it simpler and easier to install.

3. Adjustability: Holley carburetors offer a high degree of tunability, allowing users to fine-tune the fuel mixture for optimal engine performance.

4. Durability: The Holley 5275-5271 is made from high-quality materials and is built to last. It is designed to withstand the rigors of high-performance driving and racing.

1. Cost: Holley carburetors are more expensive than stock carburetors. The integrated design of the 5275-5271 may add to the cost due to the complexity of the manufacturing process.

2. Installation: Installing a Holley carburetor can be a complex process, especially for those without experience in performance engine building. Professional installation may be required to ensure proper setup and tuning.

3. Maintenance: Carburetors require regular maintenance to ensure optimal performance. This can include adjusting the float levels, syncing the carburetor, and cleaning or replacing the air filter.

The Holley 5275-5271 3310 4-barrel carburetor is a high-performance, durable, and adjustable fuel delivery system that can significantly improve the power and responsiveness of an engine. However, it comes with a higher cost, installation complexity, and ongoing maintenance requirements compared to stock carburetors.

If you are looking for a high-performance carburetor for your vehicle and are willing to invest in the additional cost, complexity, and maintenance requirements, the Holley 5275-5271 3310 4-barrel carburetor is an excellent choice. It offers the potential for significant performance gains and is backed by Holley's reputation for quality and durability. However, if you are not ready for the additional cost or complexity, or if you are new to performance engine building, a stock carburetor or an entry-level performance carburetor may be a better fit for your needs.

part # 52755271 prices

• $24.95-$219.99

specifications carbcaddie:

• for models: 750
• brand: Holley
• type: Metering Block
• oe/oem part number: 4150 4160
• manufacturer part number: 5275-5271

payments carbcaddie:

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offer carbcaddie:

• sold: 0
• quantity: 1
• started: January 31, 2026
• availability: In Stock
• options: Ship-to-home
• best offers: True

general carbcaddie:

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

seller carbcaddie:

• # reviews: 33028
• rating: 100.0%

returns carbcaddie:

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

shipping carbcaddie:

• type: Calculated
• cost: $0.00
• transit: 4-10 Days
• class: Standard
• service: USPS Ground Advantage
• carrier: USPS

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