Cleaning out a cast iron block
This is my second season with my '84 Allegro. Bought it with a blown engine. Put a Craigslist-found 454 in it (truck spec GM Performance crate engine). When I got the engine home, put it on a stand an...
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They make chemicals that will dissolve rust and flush it out of the block. Water, no matter how much, will not dissolve the rust that is caked in the passages of the block.
