Piston Kit (Cast BigBore)

Piston Kit (Cast BigBore)

Cast-BB – Cast piston in original OE form for big bore cylinder

All pistons are heat-treated with a T-5 hardening and tempering cycle

All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life

Cast piston kits are gravity-cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston

Big Bore pistons increase engine’s displacement, torque, and peak horsepower

Replacement two-stroke piston rings sold individually; four stroke piston rings sold as a set