NAPA 2-407 Echlin Holley Carburetor Float

( Brand: Napa ), ( Type: Carburetor Float ), ( Oe/oem Part Number: 2-407, 2407 ), ( Items Included: Float ), ( Manufacturer Part Number: 2-407 ), ( Vintage Part: Yes )

Review NAPA Echlin Holley Carburetor Float fits B55

The Napa 2-407 Echlin Holley B55 carburetor float is a crucial component in the proper functioning of your B55 Holley carburetor. This float plays a vital role in maintaining the correct fuel level in the carburetor's float bowls, ensuring a consistent fuel supply to the carburetor's jets.

This float is manufactured by Napa under the Echlin brand, which is known for its high-quality automotive parts. The B55 carburetor float is specifically designed to fit and function optimally within a Holley B55 carburetor. Its dimensions are 1.375 inches in length, 0.875 inches in width, and it has a height of 1.125 inches.

The float is made from durable cast aluminum, which makes it lightweight yet robust. Its surface is finished with a smooth, polished coating that not only looks great but also helps minimize fuel adhesion, reducing the potential for fuel spillage.

The top of the float features a flat, smooth surface with a small, round hole in the center. This hole serves as the float's venturi, allowing air to enter and equalize the pressure between the float bowl and the atmospheric pressure outside the carburetor. This venturi design ensures that the float maintains a constant fuel level in the bowl, even during varying engine RPMs and road conditions.

The bottom of the float features a concave, dished shape that sits flush against the float bowl's surface. The dished shape allows the float to maintain a consistent fuel level while also minimizing fuel sloshing and splashing within the bowl.

The Napa 2-407 Echlin Holley B55 carburetor float is an essential upgrade for any Holley B55 carburetor user looking to improve their carburetor's performance and reliability. Its high-quality construction and precise design ensure a perfect fit and optimal fuel delivery for your engine.

The NAPA 2-407 Echlin Holley B55 carburetor float is a popular aftermarket option for those looking to upgrade their carburetor's performance. Here are some pros and cons that may help you make an informed decision:

1. Enhanced Performance: The NAPA 2-407 Echlin Holley B55 carburetor float is designed to provide better fuel flow, allowing for improved engine performance.

2. Durability: This float is made of heavy-duty materials, ensuring it can withstand the rigors of regular use.

3. Adjustability: The float is adjustable, allowing users to fine-tune their carburetor to achieve optimal fuel mixture for their specific engine and driving conditions.

1. Cost: Compared to stock floats, the NAPA 2-407 Echlin Holley B55 carburetor float can be more expensive.

2. Installation: Installing the new float may require some mechanical knowledge and tools, making it a less desirable option for those without experience.

3. Potential for Overfueling: Improperly adjusting the float could lead to overfueling, which can result in decreased performance and increased emissions.

The NAPA 2-407 Echlin Holley B55 carburetor float offers several advantages, including improved performance and durability. However, it also comes with some drawbacks, such as cost, installation requirements, and the potential for overfueling if not adjusted properly.

If you are comfortable with basic mechanical work and are looking for a significant performance upgrade, the NAPA 2-407 Echlin Holley B55 carburetor float may be a worthwhile investment. Ensure that you follow the proper installation instructions and make any necessary adjustments carefully to avoid overfueling. If you are not confident in your mechanical abilities, it may be best to consult a professional mechanic or service center for assistance.

part # 2407 prices

• $12.50-$12.90

specifications carbcaddie:

• for models: B55
• brand: Napa
• type: Carburetor Float
• oe/oem part number: 2-407, 2407
• items included: Float
• manufacturer part number: 2-407
• vintage part: Yes

payments carbcaddie:

• wallet: Paypal
• other
• credit card: Discover

general carbcaddie:

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

returns carbcaddie:

• policy: No Returns

seller carbcaddie:

• rating: 100.0%
• # reviews: 13304

offer carbcaddie:

• availability: In Stock
• started: February 20, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home

shipping carbcaddie:

• service: USPS Ground Advantage
• cost: $0.00
• transit: 4-8 Days
• type: Calculated
• class: Standard
• carrier: USPS

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