Comp Cams Camshaft - Xtreme Energy - Hydraulic Roller - Lift 0.510 / 0.510 in - Duration 276 / 282 - 110 LSA - 1900 / 5600 RPM - Big Block Chevy - Each-01-416-8--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO