New Race head for 88cc (52mm) bore kits

• Larger valves (now25/22mm) and better flow for increased
  performance. Also has bigger cooling fins. Includes all necessary parts and
  comes assembled!
• 52mm piston with rings, pin, & clips.
• High performance race camshaft (for the Race Head only)
• Head gasket kit.
• Intake kit for the race head – will match the race had much much better than intakes intended for the stock head.

This race head has been updated for even more performance! It now has 25/22mm valves with better porting/flow. We also kept the combustion chamber the same size and changed the angle of the valves slightly. This kit is for upgrading 88cc bore kits with a stock head to the Race head. You should have your existing cylinder honed (unless it's new) prior to installing this kit.

We recommend purchasing a high volume oil pump kit.

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).