Piston Rings - Classic Steel Advanced Profiling - 4.600 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Steel - Chromium Nitride - 8-Cylinder - Kit Brand- TOTAL SEAL MPN CS9150 5 . **NOTE: Truck Freight- NO State Restrictions Canada Restrictions- NO