34mm Big-Bore kit from Zenoah for the RC engines. Increases displacement to 25.4 cc. Includes 4 transfer port cylinder, piston w/ring, NGK CMR&H or 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.  

Suitable for G230RC and G260RC engines.

Note: if installing this product onto a Chung Yang engine (CY23RC, CY26RC, etc), you will need to use a Zenoah pin bearing and Zenoah pin washers.


SKU GR23199
Shipping Weight 0.5000kg

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