The Revmaster R-2300 is a 4 stroke aircraft engine for Homebuilt aircraft[1][2] The engine is based on the Volkswagen air-cooled engine.
It is extensively modified for aircraft use.
This modification consists of a quad CDI ignition (8 coils), new and enlarged #4 bearing, custom made crank shaft and cam shaft, custom made cylinder heads and other modifications.
[3] The engine is delivered completely assembled and test run from the factory (it is not delivered as a kit).