Comp Cams Camshaft / Lifters - Xtreme Energy - Hydraulic Flat Tappet - Lift 0.477 / 0.480 in - Duration 268 / 280 - 110 LSA - 1600 / 5800 RPM - Small Block Chevy - Kit-CL12-242-2--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO