BRAND NEW Part Number: 330-0553 Upgrade to S&S performance chain drive camshafts Replace stock oil pump, cam support plate, cams, and tappets with all new premium U.S. made S&S components Improved engine performance C higher lift and optimized cam timing Better, more consistent oil pressure Peace of mind – No worries about cam chain failure (no chains) Type: 585C; Timing Open: 20 /60 ; Timing Closed: 45 /20 ; Duration at 0.053: 245 /260 ; Lift at TDC: .186″/.179″; Valve Lift: .585″/.585″