Comp Cams Camshaft - Xtreme Marine - Hydraulic Roller - Lift 0.495 / 0.503 in - Duration 270 / 276 - 112 LSA - 1500 / 5500 RPM - Small Block Chevy - Each-12-417-8--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO