Howards Racing Components Camshaft / Lifters - Retro Fit - Hydraulic Roller - Lift 0.567 / 0.578 in - Duration 278 / 284 - 110 LSA - 1800 / 5400 RPM - Big Block Chevy - Kit-CL120245-10--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO