Throttle Return Spring

The MOROSO Throttle Return Spring Kit is a manifold-mount solution engineered for big block Chevy engines seeking reliable, consistent throttle control. This steel throttle return spring features a 1-13/16 inch tall bracket and chrome finish, delivering the mechanical reliability and corrosion resistance required in high-heat engine compartments. Built as a complete kit, it eliminates the guesswork of sourcing individual components and ensures proper throttle return function under varying load conditions.

The manifold-mount design positions the throttle return spring directly at the intake manifold, minimizing cable routing complexity and reducing the number of connection points that can wear or fail. Chrome plating protects against rust and corrosion while maintaining clean aesthetics under the hood. The 1-13/16 inch bracket height is sized specifically for big block Chevy applications, ensuring proper spring tension and throttle linkage geometry. Steel construction provides the strength necessary to handle repeated throttle cycles without permanent deformation or loss of return force.

This kit serves builders and restorers working on big block Chevy engines where original throttle return mechanisms are worn, damaged, or incompatible with modified intake manifolds. Street engines, muscle car restorations, and performance builds all benefit from a dedicated return spring system that prevents throttle hang and ensures responsive pedal return. The complete kit format makes installation straightforward, requiring only basic mechanical skills and standard hand tools.

MOROSO is recognized for fuel system, ignition, and engine accessory components that prioritize proven mechanical function over novelty. A throttle return spring kit addresses a fundamental requirement of any carbureted or mechanical fuel injection system—predictable, fail-safe throttle closure. For big block Chevy applications where OEM or aftermarket manifolds demand a purpose-built solution, this spring kit provides the engineering specificity that generic universal springs cannot match.