Re: cracked block
Hi Glenn, I don't know if its still available, but years ago there was a two-part, two spray can coating and developer which did a very good job revealing cracks in cast iron or steel. Spray on the coating, dry, and then spray on the developer. I used it and it did a very good job of revealing cracks. I think the best place to look for it if it still exists would be in a welding supply emporium. Good Luck with this!
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