Piston Rings - TNT Gapless - Gapless 2nd - 4.165 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile Iron - Natural - 8-Cylinder - Kit Brand- TOTAL SEAL MPN T0690 45 . **NOTE: Truck Freight- NO State Restrictions Canada Restrictions- NO