[Excaliber]

I can't rule out the steam pocket theory around the combustion chambers, here's why. It's well known that running an engine at elevated temperatures promotes and is in fact the cause of premature detonation, knock, ping. I've seen this many times, high temp and knock go hand in hand. Lot's of times folks get lucky with an overheated engine, no DISCERNIBLE or APPARENT engine damage. Hard to say what the impact may be long term. Like a few months later when you don't connect a current engine problem with an overheating issue that happened some time back...

But it IS a fact, overheating can and often does lead to blown head gaskets and warped heads. Like Bogie said to Bacall, maybe not now, but soon, in the future.

So I gotta ask myself, what is the connection between an over heated engine and the potential damage? Could that be,,, wait for it,,, steam pockets???

I see the Evans as "insurance" against this potential engine trouble. Evans offers the best protection against a steam pocket or boil over or loss of cooling capacity in a case of; Stuck t-stat or broken fan motor, timing issues, lean carb setting, blocked radiator or any other numerous causes of over heating. What it will buy you is precious time!

If you haven't over heated lately and your engine shows no signs of damage, terrific. Even a blind squirrel finds a nut once in awhile, some folks are lucky, some not so much. I'll take the insurance...