This big bore kit is made for 86cc through 110cc Chinese engines. This kit will make a huge difference in performance for the least amount of work. If you are tired of being out powered, this is the kit for you. We recommend our 26mm Mikuni Carburetor kit, which is also available in this section. With a bigger engine you will want a bigger carburetor to get the most out of your engine. Installation is as easy as putting on the piston and slipping the new cylinder on. No case boring required!

What is included:

- Lightweight aluminum cylinder with steel sleeve (huge weight savings over your stock cast iron cylinder)
- Cast in mounts on cylinder for aftermarket skid plates
- Oversize cooling fins on cylinder for efficient heat dissipation
- High compression 54mm piston with rings, pin, & clips (replaces your low compression dished or flat top piston)
- Head gasket kit