HOLLEY R-472-1 Nos Carburetor Bus Standard Engine C-41 EN-672

( Brand: Holley ), ( Manufacturer Part Number: R-472-1 ), ( Features: Carburetor ), ( Manufacturer Warranty: 1 Year ), ( Vintage Part: Yes ), ( Oe/oem Part Number: R-472-1, R-472-1a, R-393a, 234-gb-480-api ), ( Performance Part: No ), ( Country/region Of Manufacture: United States )

Review HOLLEY New Nos Carburetor Mack C-41 Bus Standard Engine

The Holley R-472-1 NOS (New Old Stock) carburetor is a classic automotive component that is perfect for those restoring or building a hot rod or custom vehicle with a Mack C-41 bus or EN-672 engine. This carburetor is a 4-barrel, downdraft design, featuring four separate barrels that help ensure optimal fuel delivery and efficient combustion.

The R-472-1 NOS carburetor is designed to deliver consistent performance under various driving conditions. It comes equipped with a 750 CFM primary venturi, which is suitable for engines with moderate power requirements. The secondary venturis measure 650 CFM each, allowing for a smooth transition during throttle application and resulting in excellent idle quality and drivability.

This carburetor features a mechanical secondaries system, which utilizes mechanical linkages to open the secondary throats when additional fuel is needed for increased engine power. It also comes with a Holley S-jet secondary system, which provides fine fuel atomization for optimal combustion efficiency.

The R-472-1 NOS carburetor is constructed from high-quality materials, ensuring durability and longevity. The primary and secondary bowls are made of heavy-duty aluminum, while the base plate is made of cast iron for added strength. The carburetor also features a baffled float bowl design, which helps maintain a consistent fuel level and reduces the risk of fuel starvation during hard acceleration.

Additional features of the R-472-1 NOS carburetor include adjustable idle mixture and jet circuits, allowing for fine-tuning of the engine idle. It also comes with a vacuum secondary system, which can be used to improve idle quality and reduce engine vibration. The carburetor is topped with a chrome air cleaner base and a clear dome-topped air cleaner element, giving it a classic and visually appealing appearance.

Overall, the Holley R-472-1 NOS carburetor is a high-performance and reliable component that is ideal for Mack C-41 bus and EN-672 engine applications. Its classic downdraft design, mechanical secondaries, and adjustable idle mixture and jet circuits make it a popular choice among hot rod and custom vehicle enthusiasts. With its high-quality construction and durable materials, this carburetor is sure to provide consistent and efficient fuel delivery for years to come.

The Holley R-472-1 carburetor is a popular choice for those seeking to upgrade the fuel delivery system of their Mack C-41 buses with the EN-672 engine. This carburetor comes with several advantages and disadvantages that potential buyers should consider before making a purchase.

1. Improved Fuel Efficiency: Holley carburetors are known for their excellent fuel efficiency, which can lead to cost savings in the long run. The R-472-1 model is no exception, as it offers precise fuel metering and mixture adjustments, ensuring optimal engine performance and reduced fuel consumption.

2. Enhanced Power and Performance: Holley carburetors are renowned for delivering increased power and torque, making them an excellent choice for bus applications. The R-472-1 model is no exception, as it offers a 4-barrel configuration that enhances the engine's power output, resulting in improved acceleration and overall performance.

3. Adjustability: The R-472-1 carburetor comes with a wide range of adjustability options, allowing users to fine-tune the fuel mixture according to their specific engine conditions and driving requirements. This level of adjustability ensures optimal engine performance and fuel efficiency under various driving conditions.

4. Durability: Holley carburetors are built to last, with high-quality materials and robust construction. The R-472-1 model is no exception, as it features heavy-duty components, including a cast aluminum base and stainless steel floats, ensuring long-lasting performance and reliability.

1. Complexity: Holley carburetors, particularly the R-472-1 model, can be more complex to install and tune compared to stock carburetors. This complexity may require additional time, resources, and expertise to ensure proper installation and configuration.

2. Cost: The Holley R-472-1 carburetor is more expensive than stock carburetors, which can be a significant investment for some users. However, the potential fuel savings and performance improvements may offset the initial cost over time.

3. Customization: The R-472-1 carburetor may require additional customization to work seamlessly with the Mack C-41 bus and EN-672 engine, including the need for specific adapters or modifications.

The Holley R-472-1 carburetor offers several advantages for those seeking to upgrade the fuel delivery system of their Mack C-41 bus with the EN-672 engine. These advantages include improved fuel efficiency, enhanced power and performance, adjustability, and durability. However, the carburetor's complexity, cost, and customization requirements should also be considered before making a purchase. Ultimately, the decision to invest in a Holley R-472-1 carburetor depends on an individual's specific needs, budget, and technical expertise. For those seeking optimal engine performance, fuel efficiency, and long-term savings, the Holley R-472-1 carburetor may be a worthwhile investment.

If you're considering purchasing a Holley R-472-1 carburetor for your Mack C-41 bus with the EN-672 engine, it is recommended that you thoroughly research the installation process and required modifications. Additionally, consider consulting with a professional mechanic or Holley technical support to ensure proper installation and configuration. By taking the time to prepare for the installation and understand the carburetor's capabilities, you can maximize the benefits of this high-performance upgrade.

Details:

Buyer pays return shipping. Any questions. It is brand new original Holley and in great condition. It fits Mack C41 Buses with 672 engines and is for Standard Power according to the catalog.

Like what you see. Please look closely at the pictures for condition before buying. This means there could be some discoloration, markings, scratches, or other defects. It does not come with the original packaging.

This is a NOS Holley Carburetor R472-1. We combine shipping.

part #: r4721 prices

• $219.99-$239.99

specifications carbcoon:

• for makes: Mack
• brand: Holley
• mpn: R-472-1
• features: Carburetor
• manufacturer warranty: 1 Year
• vintage part: Yes
• oe/oem part number: R-472-1, R-472-1a, R-393a, 234-gb-480-api
• performance part: No
• country/region of manufacture: United States

offer carbcoon:

• options: Ship-to-home
• availability: In Stock
• started: February 27, 2025
• best offers: True
• sold: 0
• quantity: 1

payments carbcoon:

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

shipping carbcoon:

• transit: 5-11 Days
• type: Fixed
• class: Standard
• carrier: USPS
• service: USPS Ground Advantage
• cost: $18.76

seller carbcoon:

• # reviews: 4068
• rating: 99.3%
• city: Andover, Minnesota

returns carbcoon:

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

general carbcoon:

• condition: New other see details
• Car Truck Parts Accessories > Air Fuel Delivery > Carburetors

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