Contains all the necessary components for overboring or rebuilding your top end. Feature forged pistons, rings, wrist pins, circlips and top end gasket set. Must bore cases to install .090. Pro-Lite Includes Wrist pin. Cast Iron BoreThis item fits the following models:1991 - 1992 Polaris 6501990 - 1997 Polaris 650 RXL1991 - 1993 Polaris 650 RXL SKS

Forged from high-silicon alloy for maximum strength and dependability|Wiseco offers a complete range of popular piston models and years for both trail and racing applications|All Wiseco pistons are priced with rings and circlips

PROP 65 WARNING: Cancer and/or reproductive harm - www.P65Warnings.ca.gov