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8-Cylinder Premium Ductile Plasma Moly Napier Rings 4.0600 Inch, +.060 Bore; 8-Cylinder Premium Ductile Plasma Moly Top Ring, Napier Second Ring Set 4.0600 Inch, +.060 Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Ductile Iron Napier Second Rings, 3/16 Inch Low Tension Flex-Vent Oil Rings

8-Cylinder Premium Ductile Plasma Moly Rings Set 4.0350 Inch, +.035 Inch Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Cast Iron Reverse Torsional Twist Second Rings, 3/16 Inch Low Tension Flex-Vent Oil Rings

8-Cylinder Premium Ductile Plasma Moly Napier Rings 4.0650 Inch, +.065 Bore; 8-Cylinder Premium Ductile Plasma Moly Top Ring, Napier Second Ring Set 4.0650 Inch, +.065 Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Ductile Iron Napier Second Rings, 3/16 Inch Low Tension Flex-Vent Oil Rings

8-Cylinder Premium Ductile Plasma Moly Rings Set 4.0400 Inch, +.040 Inch Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Cast Iron Reverse Torsional Twist Second Rings, 3/16 Inch Low Tension Flex-Vent Oil Rings

Engine Pro Performance Ductile Plasma Moly Top Ring - Napier Second Ring 43M8552 Specifications Size: Std, .005, .030, .035, .040, .045, .060, .065 Bore Size: 4.1250, 4.1300, 4.1550, 4.1600, 4.1650, 4.1700, 4.1850, 4.1900 Sold in a Set of 8

8-Cylinder Premium Ductile Plasma Moly Rings Set 4.0450 Inch, +.045 Inch Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Cast Iron Reverse Torsional Twist Second Rings, 3/16 Inch Low Tension Flex-Vent Oil Rings

8-Cylinder Premium Ductile Plasma Moly Napier Rings 4.1250 Inch, +.005 Bore; 8-Cylinder Premium Ductile Plasma Moly Top Ring, Napier Second Ring Set 4.1250 Inch, +.005 Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Ductile Iron Napier Second Rings, 3/16 Inch Standard Tension Flex-Vent Oil Rings

8-Cylinder Premium Ductile Plasma Moly Rings Set 4.0600 Inch, +.060 Inch Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Cast Iron Reverse Torsional Twist Second Rings, 3/16 Inch Low Tension Flex-Vent Oil Rings

8-Cylinder Premium Ductile Plasma Moly Napier Rings 4.1350 Inch, +.010 Bore; 8-Cylinder Premium Ductile Plasma Moly Top Ring, Napier Second Ring Set 4.1350 Inch, +.010 Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Ductile Iron Napier Second Rings, 3/16 Inch Standard Tension Flex-Vent Oil Rings

8-Cylinder Premium Ductile Plasma Moly Rings Set 4.0650 Inch, +.065 Inch Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Cast Iron Reverse Torsional Twist Second Rings, 3/16 Inch Low Tension Flex-Vent Oil Rings

8-Cylinder Premium Ductile Plasma Moly Napier Rings 4.1450 Inch, +.020 Bore; 8-Cylinder Premium Ductile Plasma Moly Top Ring, Napier Second Ring Set 4.1450 Inch, +.020 Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Ductile Iron Napier Second Rings, 3/16 Inch Standard Tension Flex-Vent Oil Rings

Engine Pro Performance Racing Rings 43M5508 Specifications Size: Std, .005, .020, .025, .030, .035, .040, .045, .060, .065 Bore Size: 4.0000, 4.0050, 4.0200, 4.0250, 4.0300, 4.0350, 4.0400, 4.0450, 4.0600, 4.0650 Sold in a Set of 8 Applies