I dropped the oil pan and found the crack. its right where the center water jacket plug is, it was welded up there when I had the block machined and apparently not welded up good enough, water is leaking from both sides of the weld. Time to pull it and get it done right which means disassembling the whole engine for a little crack. I Love this car but sure wish they had Packard build thier engines, never have any problems with my Packards.