"Jim Weir" wrote in message
...
" jls"
shared these priceless pearls of wisdom:

-
-
-Now that I have done some homework, I find your statement here to be in
-error. Please look up the alloy formula for stellite, which is the
exotic
-alloy coating on expensive 100-octane aircraft engine exhaust valves.

I know well the formula for stellite. If you are nuts enough to buy
stellite
faced valves, I know there are people willing to take your money. If you
want a
plain-jane 100 octane valve, there are those, too. I can tell you that
I've
done enough work inside Continental engines to understand the difference.
Have
you?

Yes, several Continentals, Lycomings, and even worked on a Franklin. I'm
overhauling an O-300 at the time. The 629404 exhaust valves were about $60
last time I checked. And when I bought stellite valves for an A-65 which
I'm also rebuilding, there were 2 diffrent kinds of 100-octane valves and
the stellites were cheaper.