Wiseco 4 Stroke Forged Series Piston Kit, 84.00 MM Bore, 8.6:1 CR

This Wiseco top-end gasket kit (PK1779) features dedicated forging for a superior strength-to-weight ratio, utilizing aerospace alloy. It boasts race-proven designs chosen by top race teams, CNC machining for optimal cam shape and profile for peak HP and service life, a premium top-end needle bearing for reduced friction, a high-performance ring set for extended life and sustained power, and a high-quality alloy pin for durability. For 4-stroke engines, it also includes a dome design for improved flame travel, chrome-plated piston pin with horizontal slot pin oiling for reduced friction and scuff resistance, and a pressure seal groove for maximum ring seal. Armor Glide Skirt-Coating is available for select models. The kit includes premium materials for the best sealing technology available, exceeding OEM standards.