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8-Cylinder Premium Ductile Plasma Moly Napier Rings 4.0450 Inch, +.045 Bore; 8-Cylinder Premium Ductile Plasma Moly Top Ring, Napier Second Ring Set 4.0450 Inch, +.045 Bore, 1.5mm Ductile Iron Plasma Moly Top Rings, 1.5mm Ductile Iron Napier Second Rings, 3.0mm 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, 1.5mm Ductile Iron Plasma Moly Top Rings, 1.5mm Ductile Iron Napier Second Rings, 3.0mm Low Tension Flex-Vent Oil Rings

Engine Pro Performance Racing Rings 43M8525 Specifications Size: Std, .100 Bore Size: 4.5000, 4.6000 Sold in a Set of 8 Applies to: 1.5 - 1.5 - 3.0Mm Low Tension Description: None PREMIUM DUCTILE PLASMA MOLY Shell molded High tensile streng

8-Cylinder Premium Ductile Plasma Moly Napier Rings 4.5000 Inch, Standard Bore; 8-Cylinder Premium Ductile Plasma Moly Top Ring, Napier Second Ring Set 4.5000 Inch, Standard Bore, 1.5mm Ductile Iron Plasma Moly Top Rings, 1.5mm Ductile Iron Napier Second Rings, 3.0mm Low Tension Flex-Vent Oil Rings

8-Cylinder Premium Ductile Plasma Moly Napier Rings 4.5050 Inch, +.005 Bore; 8-Cylinder Premium Ductile Plasma Moly Top Ring, Napier Second Ring Set 4.5050 Inch, +.005 Bore, 1.5mm Ductile Iron Plasma Moly Top Rings, 1.5mm Ductile Iron Napier Second Rings, 3.0mm Low Tension Flex-Vent Oil Rings

8-Cylinder Premium Ductile Plasma Moly Rings Set 4.1250 Inch, Standard Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Cast Iron Reverse Torsional Twist Second Rings, 1/8 Inch Standard Tension Flex-Vent Oil Rings

8-Cylinder Premium Ductile Plasma Moly Napier Rings 4.5350 Inch, +.035 Bore; 8-Cylinder Premium Ductile Plasma Moly Top Ring, Napier Second Ring Set 4.5350 Inch, +.035 Bore, 1.5mm Ductile Iron Plasma Moly Top Rings, 1.5mm Ductile Iron Napier Second Rings, 3.0mm Low Tension Flex-Vent Oil Rings

8-Cylinder Premium Ductile Plasma Moly Rings Set 4.1300 Inch, +.005 Inch Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Cast Iron Reverse Torsional Twist Second Rings, 1/8 Inch Standard Tension Flex-Vent Oil Rings

Engine Pro Performance Ductile Plasma Moly Top Ring - Napier Second Ring 43M8542 Specifications Size: Std, .005, .030, .035, .040, .045, .060, .065 Bore Size: 4.0000, 4.0050, 4.0300, 4.0350, 4.0400, 4.0450, 4.0600, 4.0650 Sold in a Set of 8

8-Cylinder Premium Ductile Plasma Moly Rings Set 4.1550 Inch, +.030 Inch Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Cast Iron Reverse Torsional Twist Second Rings, 1/8 Inch Standard Tension Flex-Vent Oil Rings

8-Cylinder Premium Ductile Plasma Moly Napier Rings 4.0050 Inch, +.005 Bore; 8-Cylinder Premium Ductile Plasma Moly Top Ring, Napier Second Ring Set 4.0050 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 4.1600 Inch, +.035 Inch Bore, 1/16 Inch Ductile Iron Plasma Moly Top Rings, 1/16 Inch Cast Iron Reverse Torsional Twist Second Rings, 1/8 Inch Standard Tension Flex-Vent Oil Rings