Aluminum Gilmer Drive Long Crank Pulley Only Bearing wear is dramatically reduced

Bearing wear is dramatically reduced and the fatigue strength is greatly improved

and quality components are combined into a precision-machined compact package

race-bred styling will make bad intentions clear for drag race

The Speedmaster Serpentine Pulley Kit is engineered to offer a balance of performance and value for high-performance street cars and race car applications

Grab one of these race-ready Speedmaster billet steel flywheels for the durability and performance that you demand

Aluminum Gilmer Drive Long Crank Pulley Only Bearing wear is dramatically reducedSpeedmaster offers all the accessories you will need to find the proper configuration for your supercharger combination. Whether it's a new build or just general maintenance Speedmaster has what you need to get out on the road.