Speed Pro Performance Piston Rings - 4.360 in Bore - Drop In - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Moly - 8-Cylinder E424K40 474 Our research and development program

Our research and development program supports our ongoing commitment to raise the bar across the industry for strength and durability

To ease this install

150 HP Max

sea and air use

Speed Pro Performance Piston Rings - 4.360 in Bore - Drop In - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Moly - 8-Cylinder E424K40 474 Our research and development programProduct Description: Piston Rings Performance 4. 360 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