Speed Pro Premium Piston Rings 4.100" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly 700020 4 60-foot combinations running these

4 60-foot combinations running these same pieces

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Interstitial carbide concentration improves wear resistance and running propertiesA distributor's performance is only as good as its drive gear

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Speed Pro Premium Piston Rings 4.100" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly 700020 4 60-foot combinations running theseProduct Description: Piston Rings Performance 4. 100 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Steel Moly 8 Cylinder From pistons to engine bearing components, Speed Pro offers an array of performance engine parts. You can rely on Speed Pro for industry leading performance engine technologies, from cutting edge Digital Diamond Profiled pistons to A Series bearings. They are engine components performance enthusiasts and racers can