[Blindhuckster]

Ggmac, I appreciate your feedback and will do that. I assume that these plugs go through to the engine water jackets. I'd guess these, like all freeze plugs are susceptible to rust. I had the water pumps off and the inside of the block water jackets are incredibly clean and free of any scale. This engine was rebuilt at some point in the past as the crankshaft counterweights were marked with 0.010 mains 0.020 rods journals.