Throttle Return Spring Kit - Square Flange

The Throttle Return Spring Kit - Square Flange is an essential component for automotive enthusiasts who are optimizing high-performance carbureted setups. This kit ensures that throttle blades close promptly when the pedal is released, which is crucial for preventing engine runaway and enhancing drivability. It is particularly beneficial for both street and track vehicles utilizing square flange intake manifolds.

Constructed from robust steel and finished with a protective zinc oxide coating, this throttle return spring kit is designed to endure the extreme heat cycles typical of high-output engine bays. The dual spring design acts as a fail-safe, ensuring that if one spring fails, the other maintains sufficient tension to return the throttle linkage to the idle position. This design feature enhances reliability and performance during rapid throttle transitions.

Ideal for mechanics and DIY builders, the Throttle Return Spring Kit - Square Flange offers straightforward installation on square flange mounting surfaces, eliminating the need for custom fabrication. It is specifically compatible with Holley 4150 and Quick Fuel carburetors, making it a perfect choice for those completing crate engine installations or upgrading existing fuel systems.