Hastings Piston Rings - Premium Ductile Moly - 4.310 in Bore - Drop in - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile Iron - Plasma Moly - 8-Cylinder - Kit-2M5519060--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO