On Tue, 10 Feb 2004 20:21:41 GMT, "Roger Long"
om wrote:

I am looking into the possibility that a large number of substandard quality
valve lifters were introduced into the supply pipeline in the late 90's. If
you have experienced lifter spalling at mid TBO or before, I would like to
talk to you. I am particularly interested in cases where there are no
obvious causes such as long periods of down time, lack of preheating in cold
weather, etc. Please reply directly and not by post.

If you're referring to Brand "L", I'd recommend add high cruise
CHT/oil temp as an "obvious cause".

TC