Comp Cams Camshaft / Lifters / Springs / Timing Set - Magnum - Hydraulic Flat Tappet - Lift 0.520 / 0.520 in - Duration 280 / 280 - 110 LSA - 2000 / 6000 RPM - Big Block Chevy - Kit-K11-208-3--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO