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Hey Walt, just wondering if the sodium is really necessary and is it even available any more (other than from Porsche).
I must admit I gave up on the idea when I found that my original from the factory 1979 Euro SC engine did not have them (at least there is no divot on their tops), the spare set of new, sitting-in-the-box valves I bought do not have divots and the new valves that Steve put in my new 3.4 heads did not have divots either. Haven't checked the Kremer, but I do not recall seeing divots on those either...
Basically while my brain says that sodium filled is a great idea, the reality seems to be that they are not typically available any more.....so I just gave up and settled for Steve's recommendation.
...but then again, you race your stuff!
Dennis
Last edited by Iciclehead; 01-01-2013 at 04:40 PM..
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