I did not have the head pressure tested. When I was disassembling the head to take to the machinist for magaflux and flatness check, I noticed two freeze plugs in the head the were "rotted" through. The machine shop and I both agreed it was electrolysis. I've since corrected the coolant by raising the pH. But is it likely that the electrolysis could have also gotten through the cylinder wall?
Thanks.
Ken
