Home   All Parts   Engine Parts & Diagrams, Scooters-ATVs-Dirt Bikes-GoKarts   Cylinder Heads & Parts, 2 Stroke and 4 Stroke, For 49-260cc Engines   4 stroke GY6 49-180cc, ATVs-Scooters-Go Karts-Motorcycles   GY6 125-150-180cc   Cylinder Head Type 1 , GY6150 ATVs, GoKarts, Scooters H=60 B=57 , (with valves and springs)