Comp Cams Camshaft / Lifters - Xtreme Energy - Hydraulic Flat Tappet - Lift 0.480 / 0.485 in - Duration 256 / 268 - 110 LSA - 1000 / 5200 RPM - Big Block Chevy - Kit-CL11-234-3--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO