HOLLEY FR-4776C Double Pumper Carburetor 090127649176

( Brand: Holley ), ( Manufacturer Part Number: FR-4776C ), ( Part Type: Carburetor ), ( Manufacturer Warranty: Sold As-is ), ( UPC: 090127649176 )

Review HOLLEY Double Pumper Carburetor Factory Refurbished

The Holley FR-4776C Double Pumper Carburetor is a high-performance fuel delivery system, specifically designed for muscle cars and hot rods. This carburetor features a unique design with two separate bowls, each fed by its own float and needle valve assembly. This configuration allows for an increased volume of fuel delivery, making it ideal for large displacement engines or high-horsepower applications.

The FR-4776C is built with quarters-turn adjustment knobs that allow fine-tuning of the idle mixture and main jet circuits, enabling precise fuel mixture adjustments for optimal engine performance. The secondary metering rods are adjustable via screw-in needles, providing additional fuel enrichment during wide-open throttle operation for improved drivability and power.

The generous 750 CFM (cubic feet per minute) bore flow rate guarantees a steady fuel supply under all driving conditions, ensuring smooth idling and consistent power delivery throughout the RPM range. It's compatible with various fuel systems, including E85 and methanol, catering to a wide range of aftermarket fuel systems.

This carburetor comes equipped with Holley's tried-and-tested hollow-core borosilicate glass floats. Their larger cross-section ensures better air distribution and improved atomization for a more efficient fuel delivery. The floats' hollow core helps to remove air bubbles, ensuring a consistent fuel level and improved engine response.

The Holley FR-4776C Double Pumper Carburetor is constructed with drain plugs that enable easy access to the primary and secondary bowls. This design allows for easy and thorough cleaning, which contributes to an extended carburetor lifespan, increased fuel efficiency, and improved engine performance. These drain plugs feature a tapered design, ensuring a secure fit and prevention of leaks.

The product comes with a stainless steel linkage bracket and gaskets, making it easier for users to install without worrying about purchasing separate components. The base plate is made of an aluminum alloy, which adds durability and strength while reducing weight.

The Holley FR-4776C Double Pumper Carburetor comes with brass fittings for the fuel and vent lines, offering superior resistance to corrosion and prolonging the product lifespan. The carburetor body is constructed of cast aluminum with a polished finish, giving it an attractive appearance and providing protection against weathering and damage.

In summary, the Holley FR-4776C Double Pumper Carburetor presents a powerful and efficient fuel delivery solution for muscle cars and hot rods, offering increased power in high-performance applications, fine-tuning capabilities, and durability that ensures a professional-quality install and long-lasting performance.

The Holley FR-4776C Double Pumper Carburetor is a popular choice among automotive enthusiasts for various reasons. However, like any other automotive component, it has its advantages and disadvantages. Here's a balanced analysis of both:

1. Increased Air/Fuel Mixture: The double pumper design of the Holley FR-4776C provides an increased air/fuel mixture for better combustion efficiency. It can support higher horsepower levels than a single pumper carburetor, making it ideal for high-performance applications.

2. Customizable: Holley carburetors are renowned for their versatility. The double pumper design allows for easy tuning and customization through various arrangements of power valves and jets.

3. Improved Idle Quality: The Holley FR-4776C is equipped with an Acu-Fine Idle Mixture Circulator and Vacuum Secondary control system. These features help provide a smooth and stable idle, even with significant engine load changes.

4. Enhanced Power: This carburetor is suitable for engines that require a lot of power. It can smoothly deliver fuel to large engines, allowing for increased horsepower and torque.

5. Durable: The Holley FR-4776C is constructed of high-quality materials to ensure long-lasting performance. It can withstand the rigors of high-performance applications better than some of its competitors.

1. Complex Installation: Compared to single pumper carburetors or fuel injection systems, the installation process for a Holley FR-4776C double pumper carburetor can be more complex due to its additional components and tuning requirements.

2. Higher Cost: The Holley FR-4776C Double Pumper Carburetor is pricier than some other carburetors because of its advanced features and performance capabilities.

3. Frequent Tuning: As with any highly tuned carburetor, the Holley FR-4776C may require frequent tuning to maintain optimal performance. This is because different engine configurations and driving conditions can cause fuel mixture and engine performance variations.

The Holley FR-4776C Double Pumper Carburetor is a high-performance component that provides several advantages for those seeking increased power and enhanced engine response. Its ability to deliver a smooth idle and provide efficient combustion are significant selling points. However, its complex installation, higher cost, and frequent tuning requirements are important factors to consider. In conclusion, if you're building a high-performance vehicle and are willing to invest the time and resources into tuning and installation, the Holley FR-4776C Double Pumper Carburetor may be an excellent choice for you.

If you're not ready for the complexities and costs associated with a Holley FR-4776C Double Pumper Carburetor, you might consider other options, such as a single pumper carburetor or a fuel injection system. These alternatives offer less power potential but are generally simpler to install and maintain. Ultimately, your decision will depend on your engine requirements, budget, and familiarity with carburetor tuning. Consulting with a trusted automotive professional can help you weigh the pros and cons and determine which solution is best for your vehicle.

Details:

PowerPC Performance. Manual choke Cable driven, hand operated for precise cold start control. Gold Chromed finish for corrosion resistance and classic Holley looks. Dual feed fuel inlet's for constant high volume delivery.

Optimized street/strip calibration that works out-of-the-box. A signature is required on all UPS orders over $750. 100% wet-flow tested by Holley technicians to assure it arrives ready run. Buyer pays return shipping.

Mechanical secondaries for awesome tire turning performance.

part #: fr4776c prices

• $100.00-$178.78

specifications carbcoon:

• brand: Holley
• mpn: Fr-4776c
• part type: Carburetor
• manufacturer warranty: Sold As-is
• upc: 090127649176

offer carbcoon:

• sold: 0
• started: January 30, 2025
• options: Ship-to-home
• availability: In Stock
• quantity: 1

shipping carbcoon:

• class: Standard
• carrier: UPS
• type: Fixed
• service: UPS Ground
• transit: 2-6 Days
• cost: $0.00

general carbcoon:

• Car Truck Parts Accessories > Air Fuel Delivery > Carburetors
• condition: Remanufactured

payments carbcoon:

• wallet: Paypal
• other
• credit card: Discover

seller carbcoon:

• rating: 98.5%
• city: Bowling Green, Kentucky
• # reviews: 8805

returns carbcoon:

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

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