BRAND NEW Part Number: 310-0814 Upgrade to S&S performance gear 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: 510G; Duration at 0.053: 238 /252 ; Lift at TDC: .187″/.179″; Timing Open: 20 /52 ; Timing Closed: 38 /20 ; Valve Lift: .510″/.510″