SPARK 16R-178A Box Carburetor Float Holley 21-274 49-71 1-BBL

( Brand: Spark ), ( Part Type: Box Carburetor ), ( Manufacturer Part Number: 16R-178A ), ( Ipn: 21-274 )

Review SPARK New Out Of Box Brass Carburetor Float 49-71 Holley fits 1904–1960

The Holley 1904 1-bbl 49-71 Spark Plug IAC (Idle Air Control) Float (Part Number: 16-178-A) is a crucial component of your Holley 1-barrel carburetor, designed specifically for use with Holley carburetors that were manufactured between the years 1949 and 1971. This float plays a vital role in maintaining the proper fuel level in the carburetor's float bowls, ensuring consistent engine performance and idling.

This float is constructed from high-quality materials, including a durable, lightweight aluminum body and a precision-machined brass float bowl gasket. The brass gasket is designed to provide a reliable seal, preventing fuel leakage and ensuring optimal fuel delivery to the engine. The float features a unique, polished finish that not only looks great but also enhances its durability and resistance to corrosion.

One of the key features of this float is its adjustable float level. This adjustment allows you to fine-tune the fuel level in the float bowls to suit your specific engine and driving conditions. By adjusting the float level, you can optimize your engine's idle quality, fuel economy, and performance. The float also comes with a set of adjustment clips, making it easy to make adjustments without the need for additional tools.

The Holley 16-178-A float is compatible with a wide range of Holley 1-barrel carburetors, including those with vacuum secondary systems and various vacuum advance setups. It is also suitable for use with a variety of fuel systems, including both gasoline and alcohol. This makes it an excellent choice for hot rods, custom cars, and vintage vehicles.

In summary, the Holley 1904 1-bbl 49-71 Spark Plug IAC Float (Part Number: 16-178-A) is a high-quality, adjustable float designed specifically for Holley 1-barrel carburetors manufactured between 1949 and 1971. Constructed from durable materials, this float ensures consistent fuel delivery, allows for fine-tuning of the fuel level, and is compatible with a wide range of fuel systems and engine configurations.

The Holley 1904 1-bbl 49-71 Sprint Car 16R-178A Float is a popular choice for those looking to upgrade their carburetor in older hot rods and race cars. Here are some pros and cons to consider before making a purchase.

1. Holley is a well-known brand in the automotive performance industry, and their carburetors are known for their reliability and ease of tuning.

2. The 16R-178A design is specifically for sprint cars and provides excellent air/fuel mixture delivery for high-performance applications.

3. The float design allows for a larger fuel capacity, which can reduce the need for frequent fuel stops during races.

4. Holley offers a wide range of accessories and modifications for this carburetor, allowing for customization to meet specific engine requirements.

1. The price point for this carburetor is higher than some other options on the market, which may be a deterrent for some buyers.

2. Installation can be complex, requiring some mechanical knowledge and experience.

3. The carburetor may require frequent tuning to maintain optimal performance, especially when making significant changes to engine components.

4. The design may not be suitable for everyday driving, as it is optimized for high-performance applications.

The Holley 1904 1-bbl 49-71 Sprint Car 16R-178A Float is an excellent choice for those looking to upgrade their carburetor for high-performance applications, such as sprint cars or hot rods. While the price point may be higher than some other options, the reliability, tunability, and customization options offered by Holley make it a worthwhile investment for serious enthusiasts. However, it may not be the best choice for everyday driving or those with limited mechanical knowledge or experience.

If you are in the market for a high-performance carburetor and have the necessary knowledge and experience for installation and tuning, the Holley 1904 1-bbl 49-71 Sprint Car 16R-178A Float is an excellent choice. However, if you are looking for a more affordable option or require a carburetor for everyday driving, there may be other options on the market that better suit your needs. It's always a good idea to do your research and consult with a knowledgeable mechanic or performance specialist before making a purchase.

part # 16r178a prices

• $79.99-$95.00

specifications carbcaddie:

• for years: 1904-1960
• brand: Spark
• part type: Box Carburetor
• manufacturer part number: 16R-178A
• interchange part number: 21-274

seller carbcaddie:

• rating: 99.5%
• # reviews: 250440

shipping carbcaddie:

• class: Standard
• transit: 3-7 Days
• service: USPS Ground Advantage
• type: Fixed
• cost: $0.00
• carrier: USPS

general carbcaddie:

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

returns carbcaddie:

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

offer carbcaddie:

• started: October 22, 2025
• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 750

payments carbcaddie:

• wallet: Apple-pay
• credit card: Diners-club
• other

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