Comp Cams Camshaft - LSR Rectangular Port - Hydraulic Roller - Lift 0.614 / 0.624 in - Duration 277 / 293 - 113 LSA - 1900 / 7000 RPM - GM LS-Series - Each-54-454-11--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO