Howards Racing Components Camshaft / Lifters - Hydraulic Flat Tappet - Lift 0.545 / 0.553 in - Duration 281 / 289 - 109 LSA - 1800 / 5600 RPM - Big Block Chevy - Kit-CL128001-09--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO