S&S CYCLE Cam Chest Kit with Plate M8 - Gear Drive - Oil Cooled - 475 Cam - Chrome Pushrods 310-1006A

Camshaft gear drive kits increase valve timing accuracy by eliminating timing chain lash and loosely-fit stock chain drive Reverses the rear cam's direction of rotation, providing additional operating clearance between cam lobes; as a result, higher cam lifts are possible with the gear drive kit Kits include cams, inner gears, outer drive gears, inner and outer bearings, gasket and instructions Material must be removed from the inner surface of the stock gear cover to install S&S gear drive cams A hydraulic press and other professional-level tools are required to install these kits Cam bearings and gaskets must be replaced when installing new cams Kits require high-performance valve springs when installed in 99-04 models. Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance. Due to the inherent characteristics of gear drives, you may experience more valve train noise. Original equipment specifications Bolt-in cam with stock cam timing Does not require tuning Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance. Made in the U.S.A.