RedCap 170cc GY6 61mm Big Bore Cylinder Head Assembly Enhanced Power for GY6 169cc & 200cc Engines With 57mm Stud Spacing - Type K-Block Superiority - Upgrade Your Ride With Precision Performance For the Cylinder & Piston Kit click 170cc GY6 61mm Cylinder & Piston Rebuild KitKey Features: Features:K-Block Engine Cylinder Head with super quality.The piston bore diameter is 61mm, which perfectly replaces your old or damaged one.Assist in improving the thermal efficiency, supporting the piston, and reducing friction and leakage.Made from premium aluminum alloy material, it is durable and reliable.Comes with a complete cylinder kit, easy to install, fit for GY6 170cc 200cc engines.Details:Piston Bore Diameter: 61mmStud Spacing: 57mmKnown to Fit: Engine LF161QMKPackage Includes: 1 - Cylinder Head with Valves installed Upgrade Your Ride: Unleash the power within your engine with the RedCap 170cc GY6 61mm Big Bore Cylinder Head Assembly. Enjoy enhanced acceleration, top-end speed, and overall riding satisfaction. Elevate your GY6-powered machine to new heights with this premium cylinder head assembly – the ultimate choice for enthusiasts seeking top-tier performance. Order yours today and experience unparalleled power and performance.