Zenith 750 Engine

     I am using the 164 cu in Corvair engine for my 750.  The engine is already built and has about 5 hrs break in time on it.  The engine is the first one built for my KR2.  It is going to be fitted with a fifth bearing by Bill Clapp.  This fifth bearing unit is now (10/2011) flight tested with over 600 hours on one engine and many other engines having over several hundred hours.  A new set of engine parts is being built and stored as spares.