Piston Rings - Classic Steel Advanced Profiling - 4.145 in Bore - File Fit - 0.043 in x 0.043 in x 3.0 mm Thick - Low Tension - Steel - Chromium Nitride - 8-Cylinder - Kit Brand- TOTAL SEAL MPN CS9010 25 . **NOTE: Truck Freight- NO State Restrictions Canada Restrictions- NO