GP Piston Ring Set 4.040 Bore 1/16 1/16 3/16

Piston Rings - Classic Race Gas Port - 4.040 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile Iron - Plasma Moly - 8-Cylinder - Kit

GP Piston Ring Set 4.060 Bore 1/16 1/16 3/16

Piston Rings - Classic Race Gas Port - 4.060 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile Iron - Plasma Moly - 8-Cylinder - Kit

GP Piston Ring Set 4.125 Bore 1/16 1/16 3/16

Piston Rings - Classic Race Gas Port - 4.125 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile Iron - Plasma Moly - 8-Cylinder - Kit

GP Piston Ring Set 4.145 Bore 1/16 1/16 3/16

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

GP Piston Ring Set 4.155 Bore 1/16 1/16 3/16

Piston Rings - Classic Race Gas Port - 4.155 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile Iron - Plasma Moly - 8-Cylinder - Kit

GP Piston Ring Set 4.165 Bore 1/16 1/16 3/16

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

GP Piston Ring Set 4.185 Bore 1/16 1/16 3/16

Piston Rings - Classic Race Gas Port - 4.185 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile Iron - Plasma Moly - 8-Cylinder - Kit

GP Piston Ring Set 4.185 Discontinued 04/21/22 PD

Piston Rings - Classic Race Gas Port - 4.185 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

GP Piston Ring Set 4.250 Bore 1/16 1/16 3/16

Piston Rings - Classic Race Gas Port - 4.250 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile Iron - Plasma Moly - 8-Cylinder - Kit

GP Piston Ring Set 4.280 Bore 1/16 1/16 3/16

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

GP Piston Ring Set 4.290 Bore 1/16 1/16 3/16

Piston Rings - Classic Race Gas Port - 4.290 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile Iron - Plasma Moly - 8-Cylinder - Kit

GP Piston Ring Set 4.310 Bore 1/16 1/16 3/16

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