SSP-G 67mm Cylinder Kit 4 Valve | GY6-B 161QMK Engines

Push your GY6-B / Gy7 / 161QMK build to 232cc with the SSP-G 67mm 4V Cylinder Kit. This ceramic-coated cylinder with a forged piston is designed for the 4-valve Cygnus-style cylinder head and fits B-case GY6 4-stroke engines also called GY7 and marked with 161QMK engine codes. Pair it with a 66mm (+8.2mm) stroker crank to achieve a 232 cc displacement. Everything needed for the cylinder swap is included. What's Included 67mm ceramic-coated cylinder Forged piston Rings, wrist pin & circlips Head gasket & base gasket Key Features Ceramic-coated cylinder — improved heat dissipation and reduced friction Forged piston — stronger and lighter than cast for high-performance applications 4V Cygnus-style head compatible — designed for 4-valve cylinder head setups 232cc capable — pair with a 66mm (+8.2mm) stroker crank for maximum displacement B-case (57mm stud spacing) GY6 fitment Specifications Cylinder Bore: 67mm Cylinder Height: 76mm Overall Height: 103.5mm Stud Spacing: 57mm (B-case) Wrist Pin Diameter: 15mm Compatible Engine: GY6 QMI/QMJ 152/157 (B-case long case) Max Displacement: 232cc (with 66mm stroker crank) This product is intended for off-road use only and is not intended for use on public roads.