Water… Distilled? Purified? Hose??

I lost a flat head ford engine block, because I forgot to change over from water to anitfreez in 68, when I came home from the Navy, from Florida. It was brandi new rebuilt 3 wks before with 2 Stromberg 97 carbs, and a nice cam. Wisconsin weather below zero cracked it good. It was in my 49 Merc, lead sled.

Dave