Throttle Return Sprng Ki

The Throttle Return Spring Kit by MOROSO is a critical engine bay component designed to restore proper throttle blade return function on small block Chevy and V6 engine platforms. This manifold-mount assembly solves a common carburetor tuning problem: worn or broken factory throttle return springs that fail to smoothly reset the throttle to idle. Whether you're rebuilding a classic muscle car, restoring a vintage truck, or upgrading an existing carbureted engine, this spring kit ensures reliable, consistent throttle response and prevents dangerous engine run-on conditions caused by a stuck-open throttle plate.

Built from durable steel construction with a protective chrome finish, the Throttle Return Spring Kit features a 1-13/16 inch tall bracket that securely anchors to the intake manifold using proven MOROSO engineering. The chrome plating resists corrosion in the high-heat engine compartment environment while maintaining a clean, factory-correct appearance. The spring assembly is calibrated to provide smooth, progressive return force without excessive stiffness that could interfere with carburetor linkage geometry. This kit's compact design (measuring 3.9 x 2.8 x 5 inches) fits neatly in tight engine bays without requiring additional bracket fabrication or modification to surrounding components.

Installation is straightforward for small block Chevy and compatible V6 platforms—the bracket bolts directly to standard manifold mounting points with no welding or cutting required. Carburetor enthusiasts, hot rodders, and engine rebuilders rely on this kit to achieve proper idle control and eliminate throttle lag during acceleration. The lightweight 0.5 lb assembly integrates seamlessly with factory and performance carburetors alike, making it an essential upgrade for any carbureted engine swap or restoration project where original return springs have deteriorated or been lost.