Carb Linkage Bushing Kit

The Carb Linkage Bushing Kit by MOROSO is a precision throttle linkage solution designed for carburetor-equipped engines, particularly Holley carburetors. This two-piece bushing set eliminates wear and slop in the mechanical linkage between your throttle pedal and carb body, restoring crisp throttle response and eliminating the dead zones that develop as factory bushings degrade. For any serious street or race engine builder, carburetor tuner, or hot rod enthusiast, quality linkage bushings are non-negotiable for drivability and fuel curve consistency.

Manufactured from zinc-plated steel, each bushing features a 1/2-inch mounting diameter that accommodates standard carburetor linkage pivot points. The zinc plating provides corrosion resistance in high-heat engine bays and wet climates, while the steel core maintains rigidity under repeated throttle cycling and engine vibration. The pair design—one inlet and one outlet bushing—ensures full coverage of the linkage geometry, allowing the throttle cable or linkage rod to articulate freely without binding or creating friction-induced lag. This controlled clearance is critical for engines running carbs, where precise fuel-air metering depends on instantaneous throttle plate positioning.

Installers will appreciate the straightforward bolt-in fit on Holley four-barrel and two-barrel carburetor mounting bosses. The compact footprint (3.7 x 0.75 x 5 inches) keeps package weight minimal at just 0.05 lbs, making this an essential upgrade for carb restoration, engine swaps, and performance builds where throttle response precision matters. Whether you're rebuilding a vintage muscle car, tuning a street rod, or dialing in a weekend racer, this kit eliminates worn-out linkage play and restores the mechanical feel your engine deserves. Compatible with most Holley carburetors featuring standard 1/2-inch linkage mounts.