1949-1954 Chevy 12412 Vacuum Secondary Spring Kit For 4150, 4150HP and 4160-Style Carburetors

Premium Carburetor Upgrade. The Edelbrock 1949-1954 Chevy 12412 Vacuum Secondary Spring Kit for 4150, 4150HP, and 4160-style carburetors is designed to provide precise vacuum secondary spring tuning for Holley and Demon carburetors. This kit enables enthusiasts to optimize throttle response and carburetor performance by selecting the ideal spring tension for specific engine requirements. Accurate spring selection ensures smooth and efficient throttle operation, enhancing overall drivability.

Construction and Appearance. This kit features high-quality steel springs, manufactured for durability and consistent performance. The springs have a clean steel finish, engineered to withstand the demands of automotive operation without degradation caused by heat or prolonged use. Each spring is precision-crafted to ensure reliable fitment and proper functionality within the specified carburetor models.

Installation. Installation is straightforward and typically requires minimal tools, with no drilling or modifications needed. These springs are designed to fit directly into compatible carburetor models, making the upgrade process accessible for both professionals and experienced enthusiasts.

Warranty. The product includes a 12-month warranty covering manufacturing defects and workmanship.

Application. Specifically designed to fit Holley 4150, 4150HP, 4160 series, and multiple Demon carburetor models including King, Mighty, Race, Road, Sea, Speed, and Barry Grant Claw Series carburetors. This set is not compatible with E85 or oxygenated fuels.

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