Chevrolet Performance Camshaft / Springs - LS1 Hot Camshaft - Hydraulic Roller - Lift 0.525 / 0.525 in - Duration 219 / 228 - 112 LSA - Idle / 6000 RPM - GM LS-Series - Kit-19355738--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO