Throttle Return Sring Ki

The Throttle Return Spring Kit by Moroso is a manifold-mounted carburetor system component engineered for small-block Chevy and V6 engines running traditional carbureted setups. This 4-3/4 inch tall bracket assembly restores reliable throttle closing action on carb spacer applications where OEM spring geometry has been compromised or lost during engine modification. Whether you're rebuilding a classic street engine or refurbishing a vintage performance platform, a quality return spring kit prevents hanging throttle conditions that can cause rough idle, hesitation, or uncontrolled engine speed.

Constructed from durable steel with a professional chrome finish, this kit delivers consistent spring tension and longevity in high-heat underhood environments. The manifold-mount design allows direct attachment to the intake manifold for secure positioning and minimal deflection under load. Chrome plating provides both corrosion resistance and a clean, finished appearance that complements period-correct or modern engine bays. The 3.45 x 3.45 inch footprint keeps the assembly compact while the 5.75 inch height ensures clearance around throttle linkages and intake manifold fasteners, making installation straightforward on both street and race applications.

Mechanics and enthusiasts frequently specify this Moroso return spring kit when upgrading carburetor spacers, tall intake manifolds, or non-standard throttle linkage geometries that shift the pivot point away from factory locations. The kit is ideal for single-plane manifold conversions, tunnel ram builds, or any small-block Chevy or V6 carb application where the original return spring mount has been removed or relocated. Weighing just 0.64 pounds, installation requires only basic hand tools and takes less than 30 minutes, making it an efficient upgrade for carburetor tuning, engine rebuilds, or mid-project modifications.