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I am running aluminum heads with bronze guides and Manley titanium valves and thick cast Dart valve covers and pan evacuators. The problem is if the car sits for a couple weeks or longer the valve stems above the guides start to corrode and I end up with valves sticking like this last time and when we started it I bent 2 push rods and broke 2. Question is, could the heavy cast valve cover be keeping in condensation and corroding the valve stems, this has happened twice and both times we have had to wd40 and scotch pad the valve stems just to get them out of the heads. Would sheet metal valve covers help this problem coz when I take the breathers out sometimes it is milky but the oil always drains clear with no moisture so it all seems to be in the top end.--

It's been many years since I messed with alcohol, but could the oil be (alky) contaminated? Alcohol likes to attract moisture.

My guess too......

Not sure if you are experiencing the same thing as i did back a lot of years ago....but I too had "go-jo" in my valve covers....(stamped steel w/ chrome plating).....never saw any evidence that it was affecting the main supply of oil...but would sho make a white mess inside the covers.....and would clean your hands as good if not better than store-bought go-jo....

Tom,

Are you dropping the oil out of the car between events?

Also, while the car is sitting in the pits between rounds or any other slack time, leave the valve covers off and let the alcohol vapors evaporate.

EDB

Marvel is great stuff...