Cement filled block

71Duster said

I have a friend who works at a stone/cement supply place for landscaping. I'd have to ask him the name but there is a product that doesn't harm metal that acts on the molecular level of concrete that basically turns it back into mud.

He tried some of the stuff on some concrete blocks he had at work and he was amazed. It's not an acid either. If you want I can get the product info for him.

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I would love to have the information, unit is worthless as it is. I have pulled a frost plug and it is filled to the top of these. Talked to my buddy a machinist about cutting the cylinder walls out so I could get at the concrete to chunk it out then sleeve the engine, but he says as soon as he breaks through the cylinder walls it would ruin his tooling, so no way he would attempt. My understanding of the purpose is that it was used for racing and the concrete allowed higher forces,ie he was juicing the motor and with it bored 60 over was concerned about cylinder wall thickness. Great response here, appreciate the thoughts and advice from all. I will share any solutions attempted if I get to that point. Looks like one or two possible thoughts are presented here which I would like to pursue.