KR> Piston Rings

[Rodger Nicolls]

Bob,
For O-290 rings, try Engine Components International,
1-800-ECi-2FLY(1-800-324-2359), 210-820-8101 www.eci.aero. Or try
www.aeroinstock.com.  There are also some airboaters in Florida still using
the O-290. Try a search on the internet for that one.
For the engine mount bushings I ordered the polyurethane bushings from
Revmaster. A set of 8 bushings for $40!
http://revmasteraviation.com/?p=189#more-189
Best of luck!
Rodger
KR2S with O-290-D