114cc Bore Kit, Race Head, Mikuni VM26 Carb/Kit and Race Cam for 86cc through 107cc Engines:

- NEW Race Head – Larger valves (now 25/22mm) and better flow for increased performance. Also has bigger cooling fins. Includes all necessary parts and comes assembled!
- High performance race camshaft
- Lightweight aluminum cylinder with steel sleeve (huge weight savings over your stock cast iron cylinder)
- Cast in mounts on cylinder for aftermarket skid plates
- Oversized 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
- Genuine Mikuni VM26mm Performance Carb
- Intake Kit for the Race head
- Jet kit with 3 different sizes (Stock size is a #195 - Extra jets sizes of 155, 165 & 175)
- Throttle Cable
- NEW Dual Layered Foam Air Filter (not shown in pic)

This kit is the complete kit to convert your stock motor into a powerful open class 114cc engine (much more powerful than the stock Chinese 107 and 125cc engines) with tons of torque!  Our Race Head has bigger valves and better porting over the stock Chinese type E22 head.  The head also allows you to use all cams made for the Honda engines so there is a greater variety of cams available based on your preference or type of racing.

This kit will work on all 86cc through 107 Chinese engines except models with a 3 valve head (3 valve Chinese heads typically have different stud spacing). 

We recommend purchasing a high volume oil pump kit (available in this section). 

Installation Note: It will save a lot of time and effort if the oil pump is installed while installing the bore kit (requires cylinder removal).

See the Performance Info section for additional information on our performance parts.