{"product_id":"63mm-180cc-big-bore-kit-for-gy6-125cc-150cc","title":"63mm 180cc Big Bore Kit for GY6 125cc \u0026 150cc","description":"\u003ch2\u003e63mm Big Bore Kit for GY6 125cc and 150cc Engines\u003c\/h2\u003e\u003cp\u003eThis big bore kit increases your GY6 engine's displacement to 180cc, providing increased low-end torque and improved climbing capabilities. Designed for GY6 125cc and 150cc engines, this kit is ideal for scooters, recreational vehicles, compact cars, and various utility applications. It is one of the \u003ca href=\"\/collections\/gy6-150cc-parts\"\u003eGY6 150cc scooter parts\u003c\/a\u003e that can significantly improve performance. Ensure your engine case is properly bored to accommodate this upgrade.\u003c\/p\u003e\u003ch3\u003eComplete Top-End Package\u003c\/h3\u003e\u003cp\u003eThis kit comes fully equipped with all necessary components including the cylinder, piston, circlips, ring set, and gaskets. The finned aluminum cylinder is designed to dissipate heat effectively, making it suitable for demanding applications. This comprehensive package simplifies your upgrade process.\u003c\/p\u003e\u003ch3\u003eInstallation Requirements\u003c\/h3\u003e\u003cp\u003eBefore installation, the engine case must be bored to fit the 64.9mm sleeve of the cylinder. This is important to prevent damage to the cylinder. Additionally, consider re-jetting your carburetor or upgrading to a larger performance carburetor for better fuel delivery. Pairing this kit with a performance camshaft can further maximize its capabilities.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore:\u003c\/strong\u003e 63mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e 180cc (with stock 57.8mm stroke)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleeve Outer Diameter:\u003c\/strong\u003e 64.9mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Height:\u003c\/strong\u003e 90.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStud Spacing:\u003c\/strong\u003e 54mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Cylinder, piston, 2 circlips, 5-piece ring set, base gasket, head gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement Rings:\u003c\/strong\u003e 63mm Piston Ring Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e OPS 164-310\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis Big Bore Kit is compatible with various GY6 engine models.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGY6 engine codes: 152QMI, 157QMJ, 161QMK, 1P57QMJ, 1P61QMK, YN1P57QMJ, JJ157QMJ, BN157QMJ, BN161QMK-A\u003c\/li\u003e\n\u003cli\u003eScooters: ZNEN, Wolf, Ice Bear, Bintelli, Lance, Jonway, Roketa\u003c\/li\u003e\n\u003cli\u003eRecreational vehicles: Hammerhead 150 series, Carter Talon 150, TrailMaster 150 XRX\/XRS, American SportWorks, Manco 150\u003c\/li\u003e\n\u003cli\u003eATVs and UTVs: TaoTao Bull 150, Rhino 150\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\/gy6-150cc-parts\"\u003eGY6 150cc Scooter Parts (157QMJ)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-kits\"\u003eScooter Big Bore \u0026amp; Cylinder Kits\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":52800305037543,"sku":"25-912732","price":124.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/rdln-63mm-180cc-big-bore-kit-for-gy6-125cc-150cc-1.jpg?v=1791665306","url":"https:\/\/www.magiccars.com\/products\/63mm-180cc-big-bore-kit-for-gy6-125cc-150cc","provider":"MagicCars","version":"1.0","type":"link"}