{"product_id":"gy6-case-67mm-cylinder-head-base-gasket-set","title":"GY6-Case 67mm Cylinder Head \u0026 Base Gasket Set","description":"\u003ch2\u003e67mm Head and Base Gasket Kit for GY6 Engines\u003c\/h2\u003e\u003cp\u003eThis kit is made for GY6 engines, especially those built on a B-Case design. With a 67mm inner diameter, it suits modified setups that run a big bore kit. Among the \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 scooter parts\u003c\/a\u003e available, it helps create a full seal so the engine can run efficiently and last longer. The materials are built to handle the higher heat and pressure found in modified engines.\u003c\/p\u003e\u003ch3\u003eBuild Overview\u003c\/h3\u003e\u003cp\u003eThe kit contains one head gasket and one base gasket, each cut to match the 57mm stud spacing found on GY6 B-Case blocks. The composite material resists heat well, which matters when riding hard. Together, these gaskets hold up under load, helping to prevent leaks and keep the engine running reliably.\u003c\/p\u003e\u003ch3\u003eFit Check and Setup\u003c\/h3\u003e\u003cp\u003eThis kit is intended only for 4-stroke GY6 engines with a B-Case layout, so verify the stud spacing before you fit it. Stock GY6 engines use 54mm spacing, so measure the center-to-center distance between the studs to confirm your engine is compatible. This kit suits anyone moving to a 67mm big bore setup who wants a straightforward fit.\u003c\/p\u003e\u003ch3\u003eSpecs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGasket Inner Diameter:\u003c\/strong\u003e 67mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Stud Spacing:\u003c\/strong\u003e 57mm center-to-center\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e 1x cylinder head gasket, 1x cylinder base gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e GY6 QMI\/QMJ 152\/157 (modified layouts)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GY6 4-stroke QMI152\/QMJ157 engines with B-Case block (57mm stud spacing) and 67mm big bore kits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGY6 QMI152\/QMJ157 (B-Case block, 57mm stud spacing, 67mm big bore)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Measure the center-to-center distance between your cylinder studs. This kit requires 57mm; standard A-Case engines use 54mm.\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-gaskets-seals\"\u003eScooter Gaskets \u0026amp; Seals\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Trend Times Toy Stores","offers":[{"title":"Default Title","offer_id":51135728877625,"sku":"TT-16389","price":13.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/gy6-case-67mm-cylinder-head-base-gasket-set-1.png?v=1794349634","url":"https:\/\/www.trendtimes.com\/products\/gy6-case-67mm-cylinder-head-base-gasket-set","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}