Piston Ring Set 4.010 Bore 1.2 1.5 3.0mm

The Piston Ring Set 4.010 Bore 1.2 1.5 3.0mm from JE Pistons is engineered for serious engine builders and performance mechanics who demand precision ring geometry and material quality. This ring set is designed to seal combustion pressure, control oil consumption, and maintain optimal ring-to-bore clearance in high-revving or modified engine applications. Whether you're rebuilding a street performance engine or assembling a race-ready powerplant, JE Pistons' ring sets are the industry standard for reliability and longevity.

The 1.2mm, 1.5mm, and 3.0mm ring thicknesses in this set are engineered to balance compression sealing with minimal friction and weight. The 4.010-inch bore specification ensures precise fitment in engine blocks requiring this exact diameter, critical for maintaining proper blowby control and preventing excessive oil vapor escape into the crankcase. JE Pistons uses advanced materials and honing processes to achieve consistent ring tension and face profiles, reducing ring flutter at high RPMs and improving overall ring life during sustained high-load operation.

Mechanics and engine builders working on small-block and mid-sized displacement engines will find this piston ring set ideal for both naturally aspirated and forced-induction builds. Proper ring installation requires careful attention to ring end-gap positioning and bore preparation to ensure longevity. This set is compatible with JE Pistons' matching piston offerings in the 4.010-inch bore range, making it an essential component for complete engine assembly and performance tuning projects where factory tolerances have been exceeded.