Welcome to J and G Racing products

To place an order or if you have any question, please contact us at JG29Motors@gmail.com

26cc V4 top end kit


26cc Top End Kit

This kit has a 34mm bore and is designed to bolt on to a Zenoah crank case with a 28mm stock crankshaft. It is very easy to install and no modifications are required. 

Price is $375. 

Replacement parts are available if needed.


26cc Top End Kit


26cc Top End Kit


29.5cc V4 top end kit


29.5cc Top End Kit

This is our most powerful and most popular kit. It has a 36mm bore and must be used with 29mm crankshaft and it bolts right on to a Zenoah crank case without any modification. Price is $375.

Replacement parts are available if needed.


29.5cc Top End Kit


29.5 Top End Kit


Ready to run engines


These are our fully machined ready to run engines with a V4 Top End and 4 main crankshaft bearings. Available in 26cc or 29.5cc. They are also available in a rear exhaust version. These engines are custom built.

For more information please contact us for price and availability.


J&G Quick Release engine mounts for a Zenoah engines


These engine mounts have 4 different  mounting positions. They fit just about any boat with 5" rails. 

Price $65


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J and G Racing Products