Comp Cams Camshaft - Xtreme Energy - Hydraulic Flat Tappet - Lift 0.453 / 0.456 in - Duration 256 / 268 - 110 LSA - 1000 / 5200 RPM - Oldsmobile V8 - Each-42-221-4--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO