Comp Cams Camshaft - Xtreme 4 x 4 - Hydraulic Flat Tappet - Lift 0.505 / 0.515 in - Duration 262 / 270 - 111 LSA - 1400 / 5400 RPM - Big Block Chevy - Each-11-235-3--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO