This comprehensive kit allows the user to easily add boost and horsepower to the factory supercharged Lightning and Harley Davidson trucks. The kit installs easily with no modifications or special tools required, and provides for quick and simple boost level changes once installed. The kit includes a crank pulley hub precision-machined from billet aluminum, one pulley ring of your choice, specially machined tools to hold the engine in position during installation and to break the original crank pulley bolt loose, and Grade 8 fasteners. Pulley ring +4 lb of boost over the stock level. Stock-size and 1" smaller than stock size pulley rings are also available.
