{"product_id":"ssp-g-gy6-b-case-67mm-cylinder-gasket-set-169-576","title":"SSP-G GY6 B-Case 67mm Cylinder Head \u0026 Base Gasket Set","description":"\u003cp\u003eComplete cylinder head and base gasket set for GY6 B-Case 67mm big bore engine builds. Engineered specifically for modified large-bore configurations using the B-Case block with 57mm stud spacing. Includes both gaskets needed to properly seal the combustion chamber and maintain optimal crankcase compression. SKU: 169-576.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e67mm inner diameter — tailored for high-performance 67mm big bore kits without overlapping the cylinder bore\u003c\/li\u003e\n\u003cli\u003eB-Case specific fitment — machined for the 57mm stud spacing layout of GY6 B-Case engine blocks\u003c\/li\u003e\n\u003cli\u003eHigh-thermal resilience — composite materials engineered for elevated temperatures and pressures of modified engines\u003c\/li\u003e\n\u003cli\u003eComplete top-end seal — includes both cylinder head gasket and cylinder base gasket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eDesigned for 4-stroke GY6 architectures using a B-Case block configuration:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGY6 4-stroke QMI152 \/ QMJ157 platforms\u003c\/li\u003e\n\u003cli\u003eB-Case only (57mm stud spacing)\u003c\/li\u003e\n\u003cli\u003e67mm big bore configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant — stud spacing check required:\u003c\/strong\u003e Standard GY6 engines (A-Case) use 54mm cylinder stud spacing. This gasket set is built for the 57mm spacing found on GY6 B-Case variants only. Measure your engine casing studs center-to-center before ordering to confirm proper alignment.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGasket inner diameter: 67mm\u003c\/li\u003e\n\u003cli\u003eCylinder stud spacing: 57mm center-to-center (B-Case)\u003c\/li\u003e\n\u003cli\u003eSet contents: 1x cylinder head gasket, 1x cylinder base gasket\u003c\/li\u003e\n\u003cli\u003eEngine fitment: GY6 QMI\/QMJ 152\/157 (modified layouts)\u003c\/li\u003e\n\u003cli\u003eMPN \/ SKU: 169-576\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.p65warnings.ca.gov\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCalifornia Prop 65 Warning: www.p65warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"SSP-G","offers":[{"title":"Default Title","offer_id":48112348266683,"sku":"169-576","price":15.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/1340\/6651\/files\/Screenshot2025-06-23at4.53.02PM.png?v=1784312413","url":"https:\/\/thriftyscooters.com\/products\/ssp-g-gy6-b-case-67mm-cylinder-gasket-set-169-576","provider":"Thrifty Scooters","version":"1.0","type":"link"}