Comp Cams Camshaft - Xtreme Energy - Hydraulic Roller - Lift 0.555 / 0.560 in - Duration 284 / 290 - 110 LSA - 1800 / 6200 RPM - Big Block Chevy - Each-48-802-11--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO