HOLLEY 8528 Carburetor Block Cfm 4150 4-BARREL 4778

( Brand: Holley ), ( Type: Double Pumper ), ( Manufacturer Part Number: 8528 ), ( Country Of Origin: United States )

Review HOLLEY 4150 4-barrel Carburetor Primary Metering Block Cfm fits 700

The Holley 8528 4150 4-barrel 4778 CFM carburetor is a high-performance automotive component designed to deliver optimal fuel delivery for enhanced engine performance. This carburetor is part of Holley's renowned 4150 series, which is known for its reliability, durability, and ability to provide consistent and precise fuel mixtures.

The Holley 4778 CFM carburetor is a 4-barrel design, meaning it utilizes four separate barrels to draw fuel from the float bowls and deliver it to the engine's intake manifold. Each barrel is orificed to provide the optimal fuel mixture for the specific engine conditions, ensuring a smooth and efficient combustion process.

This particular Holley carburetor features a block design, which is a compact and self-contained unit that includes the fuel bowls, float bowls, jets, needles, and other internal components. The block design simplifies the installation process, as it eliminates the need for additional fuel bowls and other components that are typically required with a traditional carburetor setup.

The Holley 8528 4150 4-barrel carburetor is capable of delivering a massive 4778 CFM (cubic feet per minute) of airflow, making it an excellent choice for high-performance applications. The large CFM rating allows the carburetor to provide a generous amount of fuel to the engine, ensuring it receives the necessary mixture for optimal power and torque.

The carburetor is also equipped with a number of performance-enhancing features, such as a vacuum secondary system, which utilizes a vacuum diaphragm to control the secondary circuits. This system provides additional fuel during full throttle conditions, helping to ensure the engine maintains optimal power and performance.

The Holley 8528 4150 4-barrel carburetor is also compatible with a wide range of fuel systems, including gasoline, E85 ethanol, and methanol. This versatility makes it an excellent choice for a variety of high-performance applications, from street rods and hot rods to drag racing and circle track competition.

In summary, the Holley 8528 4150 4-barrel 4778 CFM carburetor is a high-performance component designed to deliver optimal fuel delivery for enhanced engine performance. Its block design simplifies the installation process, while its large CFM rating and vacuum secondary system ensure the engine receives the necessary fuel mixture for optimal power and torque. With its versatility and compatibility with a wide range of fuel systems, this carburetor is an excellent choice for a variety of high-performance applications.

The Holley 8528 4150 4-barrel 4778 carburetor is a high-performance carburetor that is widely used in hot rods and custom applications. Here are some pros and cons that may help you make an informed decision about purchasing this carburetor.

1. High CFM (Cubic Feet per Minute) Rating: With a 4778 CFM rating, this carburetor is capable of delivering a large amount of air and fuel to an engine, making it an excellent choice for high-performance applications.

2. Adjustable Features: The Holley 8528 comes with multiple adjustable features, including the primary and secondary throttle bore sizes, jet sizes, and emulsion tube length. These adjustments allow for fine-tuning of the carburetor to optimize engine performance.

3. Durable Construction: The carburetor is made with high-quality materials, including billet aluminum and stainless steel components. This makes it a durable option that can withstand the demands of high-performance applications.

4. Easy Installation: The Holley 8528 comes with a fully assembled base gasket, making the installation process relatively straightforward.

1. Complexity: Due to its adjustable features and high-performance capabilities, the Holley 8528 can be more complex to tune than some other carburetors. This may require additional time and expertise to get the carburetor set up correctly.

2. Cost: The Holley 8528 is a premium carburetor that comes with a premium price tag. It may be more expensive than other options on the market.

3. Size: The carburetor is relatively large, which may make it difficult to install in some applications where space is limited.

In conclusion, the Holley 8528 4150 4-barrel 4778 carburetor is a high-performance option that offers adjustable features, durable construction, and easy installation. However, it also comes with some drawbacks, including complexity, cost, and size. Ultimately, the decision to purchase this carburetor will depend on your specific application and budget.

If you are looking for a high-performance carburetor with adjustable features and a durable construction, the Holley 8528 may be an excellent choice. However, if you are working with a limited budget or space, or if you prefer a simpler tuning process, you may want to consider other options. Ultimately, it's important to weigh the pros and cons carefully to determine whether this carburetor is the best fit for your needs.

part # 8528 prices

• $40.00-$899.95

specifications carbcaddie:

• for models: 700
• brand: Holley
• type: Double Pumper
• manufacturer part number: 8528
• country of origin: United States

offer carbcaddie:

• started: June 10, 2026
• quantity: 1
• options: Ship-to-home
• best offers: True
• availability: In Stock
• sold: 0

general carbcaddie:

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

returns carbcaddie:

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

shipping carbcaddie:

• class: Standard
• transit: 6-13 Days
• service: USPS Ground Advantage
• carrier: USPS
• cost: $0.00
• type: Calculated

seller carbcaddie:

• # reviews: 35003
• rating: 100.0%

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• wallet: Apple-pay
• credit card: Mastercard
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