Comp Cams Camshaft - XFI RPM Hi-Lift - Hydraulic Roller - Lift 0.559 / 0.571 in - Duration 267 / 281 - 114 LSA - 1600 / 6700 RPM - GM LS-Series - Each-156-401-13--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO