New release GZR-30.5  Zenoah Pro Mod cyl kit. Since we were the first to make the 36mm marine engines. This is the most powerful 36mm pro mod cyl kit on the market. We have done endless testing with our new crankshafts. Our new port design and our NEW RELEASE of our sole proprietary designed crank built for our engines in mind. You get the torque of the 32cc and the rpms of a 26cc. You show up at the lake with one of these you will hurt some feeling .

 Ths is what you get

New for 2026 Our full circle 2mm stroker crank

New port design 95% hand ground pro mod cyl done at our shop.

Pro mod piston and ring and set to our specs 

All other parts as seen in picture.

Go with the best not one the rest.

Another new innovation from GIZMOMOTORS