The Speedmaster PCE306.1004 Plasma Moly Piston Ring Set is designed for a 4.040" bore diameter with a classic 5/64" – 5/64" – 3/16" ring groove configuration. Plasma moly face coating provides superior wear resistance and enhanced oil control, making these rings a dependable choice for performance engine builds demanding consistent seating and long-term durability.
Whether you're rebuilding a high-performance street engine or putting together a dedicated track powerplant, this ring set delivers the quality and consistency expected from Speedmaster. Always verify bore size and ring groove dimensions against your specific pistons and block before installation to ensure proper fitment.
MPNPCE306.1004
UPC840136537748
