well, if you'd buy it, i'd have to recommend taking a look in the JC 
Whitney catalog...the general one, its not listed in teh VW one..
its in there..around the area of tools, rustproofing, and such i think..

!.........................
                          The not so Keen one
       xi8940@freenet.fsu.edu                .........................!

On Wed, 8 May 1996, Sean Bartnik wrote:

> Actually, I've heard of this approach being used also to stop body rust
> on cars.  Could be of interest to us folks.  I'd probably pay for that
> :)
> 
> Sean
> 
> > 
> >  Back in my past, we used to put this solar panel and a battery
> > out in the wilds on pipe lines to prevent corrosion. A few milli-
> > amps at a couple volts into the pipe would stop the material migration.
> >  I don't own a water pumper but I've heard about them from some of 
> > the other members. And the price of heads. 
> >  What seems to be happening is a galvanic action caused by heat and 
> > dissimilar metals. I don't think this would be happening if the heads
> > were not isolated electricly from the block. 
> >  I propose a ground strap at least, from head to cylinder body, 
> > neutralizing any electrical imbalance. If nothing else it seems to me
> > it would cause pitting around elect. connection. 
> >  This is just a thought guys, maybe some of you electron hounds can
> > make something of it.     west
> > 
> >  of course if it works, you'll never know!
> >  
> > 
> > 
> 
>