Ken,

Yeah, I like discussing this too, I feel that we can alliviate this probem
by active manangent which enables the engine seals to do their job.

My suggestion on the aluminum spacer is a starting point aimed at saving
"aluminum" heads, not allivation of the galvinic corrosion you spoke of.  I
feel that as long as the spacer is of the same galvinic charge as the head,
you haven't created a more corrosive enviroment. The spacer just allows the
head to be machined enough to remove the flaws and then regain the lost
distance.

I feel this is a pretty straight forward fix, and has be done on other
aluminum head engines, my Datsun 240, had a iron block with the corrosion
and every head job I had to resurface .010 off. Felpro offered a spacer to
correct the high compresion problems, some guys just double headgasketed
the thing. Which would not be feasable since the VW head sealing program is
in three seals, thus the "spacer solution may be a good fix.

 Two metals like aluminum and steel act like the zinc and
>lead in a battery.  All you need is an electrolyte (like antifreeze) and you
>have a battery which would cause crazy corrosion.  We learned about this in
>aircraft maintenance school since planes use aluminum extensively.
>I like talking out this problem.  Maybe by brainstorming we can find a
>solution.

>PS I had a friend in High School here in NJ named Mark Keller who moved away a
>while back.  Any relation?  His family was originally from Washington state
>but moved away from here and I haven't heard from him in a while.

no relation that I know of, I'm from Miami Fl, and have "Keller's" their
and Northeast GA and Alabama.

Respectfully,
Mark Keller
91" Carat WE
"Lazarus"