Brian, if the head isn't grounded then all of the current from the ignition
system must make its way back to the battery by the easiest way available,
the antifreeze. This is the recipe for electrolysis and head corrosion IMHO.
That is why I've added so many seemingly useless grounds.
-Larry

Brian Sassone wrote:

> Heard a theory that the head corrosion is accelerated by compromised/poor
> engine electrical grounding.  Any thoughts?