{"product_id":"ssp-g-gy6-b-case-67mm-cylinder-head-base-gasket-set","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. Key Features 67mm inner diameter — tailored for high-performance 67mm big bore kits without overlapping the cylinder bore B-Case specific fitment — machined for the 57mm stud spacing layout of GY6 B-Case engine blocks High-thermal resilience — composite materials engineered for elevated temperatures and pressures of modified engines Complete top-end seal — includes both cylinder head gasket and cylinder base gasket Compatibility Designed for 4-stroke GY6 architectures using a B-Case block configuration: GY6 4-stroke QMI152 \/ QMJ157 platforms B-Case only (57mm stud spacing) 67mm big bore configurations Important — stud spacing check required: 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. Specifications Gasket inner diameter: 67mm Cylinder stud spacing: 57mm center-to-center (B-Case) Set contents: 1x cylinder head gasket, 1x cylinder base gasket Engine fitment: GY6 QMI\/QMJ 152\/157 (modified layouts) MPN \/ SKU: 169-576 California Prop 65 Warning: www.p65warnings.ca.gov\u003c\/p\u003e","brand":"ssp-g","offers":[{"title":"Default Title","offer_id":48045383909563,"sku":"169-576","price":15.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/thriftyscooters.com\/products\/ssp-g-gy6-b-case-67mm-cylinder-head-base-gasket-set","provider":"Thrifty Scooters","version":"1.0","type":"link"}