Holley Centre Hung Brass Float Kit – Secondary Side – Model 4160 / 4150

Superior Durability and Fuel Control

The Holley 116-2 Centre Hung Brass Float Kit is the gold standard for carburettor reliability. Engineered to replace factory Nitrophyl (plastic/composite) floats, this brass unit offers superior resistance to modern fuel blends and eliminates the risk of fuel absorption over time—a common failure point in older floats.

Performance Application This kit is designed specifically for centre hung fuel bowls. It is an ideal upgrade for racers and enthusiasts looking to improve the longevity and consistency of their fuel delivery system.

Critical Fitment Note for 4160 Models:

Technical Warning: While this float is compatible with centre hung bowls, please exercise caution when installing on the secondary side of Model 4160 carburettors (such as the 0-3310C).

If your carburettor is equipped with a secondary metering plate (standard on most 4160s), this brass float may contact the plate, causing the float to stick and resulting in flooding. This float is best suited for 4160 models that have been converted to a secondary metering block or Model 4150 carburettors.

Why Choose Brass?

• Zero Saturation: Unlike Nitrophyl, soldered brass cannot absorb fuel, ensuring the weight and buoyancy remain constant for decades.

• Corrosion Resistance: Highly resistant to aggressive race fuels and ethanol blends.

• Precision Weight: Factory calibrated for accurate fuel level control.

Kit Includes:

• 1 x Brass Centre Hung Float

• (Hardware/Hangers usually sold separately or reused, check kit contents)

Technical Specifications

• Manufacturer Part Number: 116-2

• Material: Brass

• Float Type: Centre Hung (Center Pivot)

• Application: Holley Model 4160 & 4150 (Secondary Side)

• Fitment Requirement: Requires Centre Hung Fuel Bowls

• Emission Code: 5 (Racing / Non-Emissions / Uncontrolled Vehicles)

For over a century Holley has driven the cutting edge of fuel-system design. That work continues today through Holley’s market-leading EFI products as well as through Holley’s family of best-in-industry brands. Top brands like MSD and many more make up the industry’s leading offering of enthusiast-driven products to deliver robust, complete performance solutions for builders, racers, and drivers. From propelling the LS-, Coyote-, and Gen 3 Hemi-swap trends, to continuously innovating late-model and vintage vehicle performance, Holley’s commitment to its customers and their cars is at the core of everything Holley do.