Comp Cams Camshaft - LSR Rectangular Port - Hydraulic Roller - Lift 0.624 / 0.624 in - Duration 289 / 305 - 114 LSA - 2400 / 7200 RPM - GM LS-Series - Each-54-471-11--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO