S&S 33-5177 High Torque Gear Drive Camshaft Kit For Harley-Davidson Twin Cam. 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. S&S recommends that adjustable pushrod/cover kit be used. Cam bearings and gaskets must be replaced when installing new cams. Specially designed to improve the torque of Touring bikes. Stock pushrods and valve springs acceptable. Designed as bolt-in cam for 88", 95", 96" and 103" engines with compression ratios below 9.7:1. The item "S&S 510G Torque Gear Drive Camshaft Kit For Harley-Davidson Twin Cam 1999-2006" is in sale since Thursday, February 21, 2019. This item is in the category "Motor\ piezas y accesorios\Motos\ recambios\Motores y piezas\Árboles de levas". The seller is "california-motorcycles" and is located in Madrid. This item can be shipped worldwide.