Lost Frost plugs

RustyRatRod said

My opinion on this is that unless you are 100% SURE that you saw the missing plugs, that they were never installed. The only reason they would have come out had they been installed would be if water froze in the block and pushed them out. You say it did not have water in it, so.....

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I bought the engine as a "crate" unit. It had been built by a trusted individual. I think last year I had it broken in..that is where they attach it to an electric engine and spin it at 1500rpm (i think) for a period of time.

The engine has never had water in it.

I spray painted it last year.

I am completely stumped.

Ian.