Speed Pro Premium Piston Rings 4.120" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly 7000103 The hardened and ground surfaces

The hardened and ground surfaces allow for full ball to race conformity

NGK Racing Spark Plugs feature electrode materials and configurations as follows:

4 Pin to 4 Pin

41 in Stud

8 AN Inlet

Speed Pro Premium Piston Rings 4.120" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly 7000103 The hardened and ground surfacesProduct Description: Piston Rings Performance 4. 120 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