TB Stock Head 88cc Bore Kit & 20mm Carb Kit - K1-78 Models
- Lightweight aluminum cylinder with steel sleeve - Cast in mounts on cylinder for aftermarket skid plates - Oversized cooling fins on cylinder for efficient heat dissipation - High compression 52mm piston with rings - pin - & clips - Head gasket kit - 20mm Performance carb assembly. Includes: 20mm carb - intake - heatstop - gaskets - mounting hardware/wrench - air filter and long throttle cable - NEW! 12/08 - a main jet kit is now included too! Easily double your power and fun with this quality - yet economical bore kit!! 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).