{"product_id":"gy6-58-5mm-cylinder-head","title":"GY6 58.5mm Cylinder Head","description":"\u003ch2\u003eGY6 58.5mm Cylinder Head for 125cc and 150cc Engines\u003c\/h2\u003e\u003cp\u003eThe GY6 58.5mm Cylinder Head is designed specifically for 125cc and 150cc GY6 4-stroke engines and compatible vehicles utilizing 160-180cc cylinder kits. This cylinder head features a deeper combustion chamber, which aids in improving combustion efficiency. It is one of the \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 scooter parts\u003c\/a\u003e that can significantly boost engine performance during your next repair or upgrade. This part is important for maintaining reliable engine function in your scooter.\u003c\/p\u003e\u003ch3\u003eConstruction and Design\u003c\/h3\u003e\u003cp\u003eThis cylinder head incorporates a unique design to improve combustion efficiency. The exhaust valve diameter measures 23mm, while the intake valve diameter is 27.75mm. The exhaust port and intake port diameters are 26.5mm and 27.5mm, respectively, ensuring a proper fit and function within the engine assembly.\u003c\/p\u003e\u003ch3\u003eInstallation Considerations\u003c\/h3\u003e\u003cp\u003eWhen installing this cylinder head, note that the threaded holes for the exhaust are shallow, measuring only 10mm. You may need to trim the exhaust studs or utilize bolts to achieve a proper seal during installation. Proper attention to these details will help ensure the efficiency and reliability of the engine after installation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Valve Diameter:\u003c\/strong\u003e 23mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Valve Diameter:\u003c\/strong\u003e 27.75mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Port Diameter:\u003c\/strong\u003e 26.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Port Diameter:\u003c\/strong\u003e 27.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of Exhaust Flange Holes:\u003c\/strong\u003e 10mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis cylinder head fits a range of vehicles equipped with GY6 4-stroke engines, particularly those with 125cc and 150cc configurations, as well as certain 160-180cc kits.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGY6 QMI\/QMJ 152\u003c\/li\u003e\n\u003cli\u003eGY6 QMI\/QMJ 157\u003c\/li\u003e\n\u003cli\u003eVarious makes\/models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/chinese-scooter-parts\"\u003eChinese Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-heads\"\u003eScooter Cylinder Heads \u0026amp; Valves\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795175469287,"sku":"25-902689","price":135.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-58-5mm-cylinder-head-1.jpg?v=1791584189","url":"https:\/\/www.magiccars.com\/products\/gy6-58-5mm-cylinder-head","provider":"MagicCars","version":"1.0","type":"link"}