S&S Cycle Piston Kit, 3.5″ Bore, 9.25:1

• Piston kit for 89″ stroker kit flywheels

• Standard bore, includes set of pistons, rings, wristpins, clips

• Works with stock or S&S Cycle performance replacement heads

• When ordering replacement pistons for older 89″ flywheels, the flywheels will require rebalancing