Here is a high quality 61 mm engine gasket set for 50cc, 125cc, and 150cc GY6 Engines from NCY This is a complete gasket kit Description Here is a high quality 61 mm engine gasket set for 50cc, 125cc, and 150cc GY6 Engines from NCY. This is a complete gasket kit. The pack includes the head, base, exhaust, intake, valve cover, secondary air, timing chain and case gaskets. Let Monster Scooter Parts be your source for NCY scooter parts and accessories. 1100-1277