Upgrade to S&S Cycle bolt-in performance chain drive camshafts Improved engine performance - higher lift and optimized cam timing S&S Quickee pushrods - easy installation, without removing rocker covers Replace stock oil pump, cam support plate, cams, chain tensioners, and tappets with all new premium U.S. made S&S Cycle components Upgrade 1999-'06 models to 2007-'16 style oil pump (included) for better, moreconsistent oil pressure S&S Cycle Hydraulic Cam Chain Tensioners -improved valve timing and chain life Centerline Intake:92.5° Duration Exhaust @ .020:237° Grind:551CE Lift @ Top Dead Center Intake:.163" Duration Intake @ .020:215° Lift @ Top Dead Center Exhaust:.179" Lift:.550" Valve Timing Exhaust:39°/18° Centerline Exhaust:100.5° Valve Timing Intake:15°/20°