Description
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 PART # 93-5095 be used Cam bearings and gaskets must be replaced when installing new cams Cams are also available with inner gears only; intended for cam replacement for motors that have already been converted to an S&S gear-drive system Made in the U.S.A. 635 H.O. SERIES GRIND CAMS High-power cam for modified engines, increase compression, high-lift springs and large bore throttle body required For best results requires ported heads, low restriction intake/exhaust RPM range 4000-6500 Grind Open Close @ .053 Valve Lift 635 H.O. Series Intake 19.5° 58.5° 243° .635 Exhaust 43.5° 37.5° 276° .635 Grind Open Close @ .053 Valve Lift Stock Carburetors/Injected Cams Intake -02° / 02° 38°/34° 216°/216° .473 Exhaust 36° 04/04° 220/220° .473
