Speed Pro Premium Piston Rings 4.155" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly PD155K They are constructed from hand-polished

They are constructed from hand-polished stainless steel and embossed with the classic SLP logo

QA1 Shocks

Silicon Magnetic Steel E-Core

Great torque for trucks and 4WD

Speed Pro Premium Piston Rings 4.155" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly PD155K They are constructed from hand-polishedProduct Description: Piston Rings Performance 4. 155 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