88cc Race Head Big Bore Kit for honda Z50, xr crf 70, xr50, and crf 50's View larger

88cc Big Bore Kit with Race Head - Honda Z50, CRF50, XR70 & CRF70

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50 Caliber Racing 88cc Race head kit for Your Honda 50 or 70cc pit bike. 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!

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OUT OF STOCK - BACKORDERED

$ 379.00

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50 Caliber Racing 88cc Big Bore Kit with Race Head for Honda CRF50, XR50, CRF70 & XR70 Pit Bikes

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 2.2 hp to the ground and this kit will put you between 5.5-6 hp 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!

Specifications:
- 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 extended throttle cable

Fits - 2000 to present CRF50, XR50, CRF70, XR70 and 92-99 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.

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