88cc Race Head Big Bore Kit

88cc Race head kit for Your Honda 50 or Honda 70. This kit will drastically improve your overall performance on your bike. A stock honda 50 puts around 2.2hp to the ground and this kit will put you between 5.5-6hp to the ground and 30% more to the crank! Kit comes with fully assembled race head, performance cam, 20mm carburetor, and all the other goodies needed to fulfill your need for speed!

Details:
- Comes with fully assembled Race head (race head has larger valves for significantly increased air flow)
- High volume oil pump included
- Performance CDI box included that removes stock rev limiter
- Lightweight aluminum cylinder with steel sleeve
- Cast in mounts on cylinder for aftermarket skid plates
- Oversized cooling fins on cylinder for efficient heat dissipation
- 52mm piston with rings, pin, & clips
- Head gasket kit
- High performance race camshaft
- 20mm Performance carb assembly. Includes: 20mm carb, intake, heatstop, gaskets, mounting hardware/wrench, air filter and lextended throttle cable

Fits - 2000 to present CRF50, XR50, CRF70, XR70 and 88-99 Z50

We have been selling these kits since 2004 and believe they are of the highest quality and put out the most power you are going to find in a Big Bore kit period.