Piston Rings - Classic Race Gas Port - 4.145 in Bore - Drop In - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Gas Ported - Ductile Iron - Plasma Moly - 8-Cylinder - Kit

Piston Rings - Classic Race Gas Port - 4.165 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile Iron - Plasma Moly - 8-Cylinder - Kit

Piston Rings - Classic Race Gas Port - 4.280 in Bore - Drop In - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile Iron - Plasma Moly - 8-Cylinder - Kit

Piston Rings - Classic Race Gas Port - 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

Piston Rings - Classic Race Gas Port - 4.530 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile Iron - Plasma Moly - 8-Cylinder - Kit

Piston and Rings - Professional Series - Forged - 3.445 in Bore - 1.0 x 1.2 x 2.8 mm Ring Grooves - Plus 5.00 cc - Honda K-Series - Kit