Upgrade Your GY6 139QMB/139QMA Engine with Big Bore 50mm Kit Enhanced Valves

  

Upgrade Your GY6 139QMB/139QMA Engine with Big Bore 50mm Kit - Enhanced Valves. Upgrade Your GY6 139QMB/139QMA Engine with Big Bore 50mm Kit. Experience an exhilarating boost in power and performance for your GY6 139QMB, 139QMA, 147QMD Scooter, ATV, or Go Kart Engine with our specially designed Big Bore Rebuild Kit. Elevate your rides with the enhanced capabilities your engine deserves!

Includes 18.5/20.5mm Large Valve Cylinder Head Assembly, compared to stock valves of 16/18.5mm. Compatible with 69mm Long Valve Style Heads.

Comes with Rocker Arms specifically designed for engines with 64mm valves. Piston Rings feature a DLC Wear Resistant Coating that protects against wear and reduces friction.

Engine Side Cover Gasket specially made for a Short Case Version (8 Bolt). Clear installation instructions ensure a seamless upgrade experience. Unlock significant power gains with large valve heads. Enjoy enhanced acceleration and speed. Reduce engine wear and extend the lifespan of your engine with components.

Why Choose Our Big Bore Kit? Don't settle for ordinary; enhance your engine's capabilities with our Big Bore 50mm Kit. Every component is meticulously designed to maximize performance and ensure durability, giving you the thrill of a powerful ride. With our quality assurance and attention to detail, you can trust that your upgrade will lead to a noticeable difference in your machine's ride quality.

Take the leap towards unprecedented power and reliability. Upgrade your GY6 engine today and watch your performance soar! Alternative Carriers - We may use alternative carriers e. To ensure your package arrives safely and on time. Your feedback is extremely important to us.

We strive to provide the best products and customer service possible. We are committed to resolving any problems and ensuring your satisfaction.

Compatible Make: American Landmaster, Argo Atv, Bombardier, Honda, Intimidator, Italika, John Deere, Kasea, Kawasaki, Kayo USA, KTM, Kubota, Land Pride, Odes UTVs, Polaris, Quadzilla, Rebel West Powersports, Renault, Rival Motorsports, Segway Powersports, SSR Motorsports, Suzuki, Yamaha, Kymco. Compatible : GY6 100cc Cylinder Kit. Machine Type: ATV, UTV / SXS, Scooter, Go-Kart. Material: Alloy Steel, Aluminum, Carbon, Chrome, Manganese, Mild Steel, Nickel, Plastic, Silicone, Stainless Steel, Steel, Titanium.

Compatible Model: 300E SUV 4x4 Auto, 300E SUV Automatic, 300E SUV Manual, 300 Utility, 650 Heavy Duty, 6X6,700 Heavy Duty, AK-Series, Angler 110, AP-Series, Assailant 800, Big Bear 250, Blazer 170, Blazer 176, Blazer Mid 150, Bull 320, Classic XP, Dirt Demon 50, Dirt Demon 90, Landmaster EV, Landmaster L3, GY6,139QMB, 139QMA, 147QMD. Mounting Style: Bolt-On, Braze-On, Chassis Mount, Flange-Mounted, Hardwired, Riveted, Screw-On, Weld-On. Item Weight: 8.34 lb.