34mm Big-Bore kit from Zenoah for the G23LH / G230RC / CY23RC engines.
Also works as a replacement top end for the G260RC / CY26RC engines.
Increases displacement to 25.4cc. Includes 4 transfer port cylinder, piston w/ring, Champion RZ7C spark plug, piston pin, cylinder gasket, and clips.
Increases engine power SUBSTANTIALLY!
This high-performance product requires 91 octane (R+M/2 octane rating) or higher fuel, and comes without warranty.
Interchangeable with HPI part #15485.