49CC (44-6) or 47CC (40-6) Engine Cylinder Head With Piston Pin Full Kit For 2 Stroke Mini Dirt Bike ATV Quad Pocket Bike 49CC (44-6) or 47CC (40-6) Engine Cylinder Head With Piston Pin Full Kit For 2 Stroke Mini Dirt Bike ATV Quad Pocket Bike. Sale price : $5.16 Category : Motorcycle Equipments & Parts