3 BOTTOM GASKET AND FROM 1 TO 2 TOP GASKETS NEED IT FOR STROKE (NOT INCLUDE ), PISTON ONLY FOR STROKE GET THE COMBO WHILE YOU CAN SLEEVE CYLINDER 48MM PORT AND POLISH WITH 48MM PISTON ,NOW IS TIME TO DO MILES AN HOUR TAKE ADVANTAGE THIS IS A ONCE IN A LIFETIME THING ONLY AT MZ PARTS MIAMI