If you have a bad or leaky freeze plug, also known as soft plugs, it needs to be replaced. Your brass plugs are the best, and in some hard to get to places there are rubber plugs that can be adjusted to fix the problem. But if you have oil in the oil pan, assuming no one put water in the engine. You probably overheated the engine enough to acquire a cracked head gasket. Normaly that's the problem, could be a cracked head also, but more than likely a gasket. If you decide to remove the heads and replace the gaskets, good idea to have the heads resurfaced. (recommended)
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Water is running out of the motor and I can't tell if it's soft plugs or crack in the block
where are the freeze plugs located on a chevrolet small block
location of freeze plugs on a small block chevrolet
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