Description
IN BRAND NEW CONDITION PART # 33-5178 DRAG PART # 2007-2570 TUCKER PART # 499471 Fits: 1999-2006 Harley-Davidson Twin Cam Models (Excluding 06 Dyna) with Chain Drive 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. Note: Installation kit required for proper installation - sold separately. 1999 Twin Cam will need to use the splined cam drive OEM 25716-99 570 SERIES GRIND CAMS 570G/570C chain drive cams are for 88/96/103 cubic-inch engines with compression ratios between 9:1 and 10:1 Strongest from 3,200-5,700 rpm Grind Open Close @ .053 Valve Lift 570 Series Intake 20° 40° 240° .570 Exhaust 55° 20° 255° .570 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
