HOLLEY R-4523 Service Carburetor Carb Ci

( Brand: Holley ), ( Manufacturer Part Number: R-4523 ), ( Choke Type: Hot Air ), ( Type: Carburetor )

Review HOLLEY 4523 Ford Service Carburetor Carb Model For Ci fits 250 1940

Introducing the Holley R-4523 4523 Ford Service Carburetor, a high-performance carburetor engineered specifically for Ford engines with a displacement of 250 ci and a year of manufacture around 1940. This carburetor is a must-have for restorers, hot rodders, and enthusiasts seeking to restore the authentic look, feel, and power of their vintage Ford vehicles.

The Holley R-4523 4523 Ford Service Carburetor boasts a classic design reminiscent of the original Holley carburetors used in Ford applications during the 1940s. Despite its vintage appearance, this carburetor is built with modern engineering and materials to provide reliable and efficient fuel delivery.

The carburetor features a 1-barrel design with a 500 CFM venturi, ensuring ample airflow and fuel mixture for most performance applications. The Holley's proven design includes a cast aluminum body, heavy-duty base gasket, and a durable diaphragm-style fuel pump.

The R-4523 4523 carburetor comes with an adjustable primary and secondary metering blocks, enabling precise tuning for optimal engine performance. The primary metering block provides smooth idle and vacuum secondary circuit, while the secondary metering block ensures a strong and consistent power band.

The carburetor's top includes a Holley 0-8000 series vacuum secondary system, allowing for easy adjustment of the secondary circuit to optimize power output. Additionally, the carburetor comes with a Holley 1150-series accelerator pump, which delivers the proper fuel mixture for quick throttle response.

Holley's R-4523 4523 Ford Service Carburetor also includes an adjustable float level, ensuring proper fuel delivery at all engine speeds. The carburetor is compatible with various fuel systems, including gasoline and alcohol, making it a versatile choice for various applications.

The R-4523 4523 carburetor is backed by Holley's commitment to quality and performance. Each carburetor undergoes rigorous testing to ensure it meets Holley's stringent standards for accuracy and consistency. With its classic design and modern engineering, this carburetor is an excellent choice for those seeking authentic vintage Ford performance with contemporary reliability.

The Holley R-4523 4523 Ford Service Carburetor is a popular choice for those restoring or working on a 1940 Ford with a 250 ci engine. This carburetor offers several advantages and disadvantages that should be considered before making a purchase.

1. Authenticity and Fit: This Holley carburetor is designed specifically for use with 1940 Ford vehicles, ensuring a perfect fit and authentic look.

2. Performance: Holley carburetors are known for their excellent performance, providing consistent fuel delivery and easy tuning for optimal engine response.

3. Availability of Parts: Holley offers a wide range of accessories and replacement parts for the R-4523, making it easier to maintain and troubleshoot.

1. Cost: Holley carburetors can be more expensive than other aftermarket options, which may be a concern for some budget-conscious restorers.

2. Complexity: Compared to some simpler carburetors, the Holley R-4523 may require more time and expertise to install and tune effectively.

3. Adjustments: While the Holley carburetor offers excellent tunability, making the necessary adjustments can be a challenging process for those without experience.

The Holley R-4523 4523 Ford Service Carburetor is an excellent choice for those seeking authenticity, performance, and availability of parts for their 1940 Ford with a 250 ci engine. However, its higher cost and potential complexity may be a deterrent for some. Ultimately, the decision to purchase this carburetor depends on your specific needs, budget, and expertise level.

If you are looking for a high-performing, authentic carburetor for your 1940 Ford with a 250 ci engine and have the necessary budget and expertise, the Holley R-4523 4523 Ford Service Carburetor is an excellent choice. If budget or complexity concerns are a priority, alternative options may be worth considering.

Details:

Not what you are looking for. It was designed as a replacement for the 250 cubic inch 6 cylinder engine some 1969 Ford vehicles. Stamped on the carburetor is4523 D0PF9510. The to bolt hole is approximately 2 5/8 11/16 2.687 inches.

This is the carburetor only, not conversion kit. There are signs of some surface rust. This is a Holley factory Ford service replacement carburetor that was sold as part of conversion kit.

part #: r4523 prices

• $55.00-$67.00

specifications carbcoon:

• for models: 250
• for makes: Ford
• for years: 1940
• brand: Holley
• mpn: R-4523
• choke type: Hot Air
• type: Carburetor

general carbcoon:

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

payments carbcoon:

• credit card: Mastercard
• wallet: Google-pay
• other

seller carbcoon:

• rating: 100.0%
• city: Portland, Oregon
• # reviews: 1231

shipping carbcoon:

• cost: $32.55
• type: Calculated
• service: USPS Ground Advantage
• transit: 5-10 Days
• class: Standard
• carrier: USPS

offer carbcoon:

• options: Ship-to-home
• started: December 24, 2025
• availability: In Stock
• quantity: 1
• sold: 0

returns carbcoon:

• policy: No Returns

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