Hey , I ordered some 81mm pistons and rings ( I'm rebuilding two at once) Had a machine shop bore the cyl out .005 over for the clearance issue. And i was wondering if anyone has ever tried to do the ceramic coating on the piston top and the cyl heads to reduce the heat ? I have a local guy who does this kind of work. He also said there is a coating for the cyl walls to reduce friction ? I guess this is becoming very popular in high performance and race motors. Any one have any experience ?

The ceramic coating question has been asked alot on Macdizzys board you might want to join up and do a search for 'ceramic coating' http://www.macdizzy.com

Whilst your there make sure to real this thread on the exhaust bridge....
http://www.macdizzy.com/cgi-bin/ubb/ult ... 141#000000