should you muriatic acid flush your engine?

[keakar]

I saw on a website somewhere, a recommended solution to remove corrosion in your engine, was to do a 50/50 muriatic acid and water solution in a tank, and then let the engine run in it for 30 minutes to an hour to pump it through the entire cooling system.

while I have no doubt this does dissolve corrosion, I am not sure its it safe on the rest of your engine and the aluminum itself.

does anyone know for certain if its harmless to everything except the corrosion in the engine?

I have concerns about any gaskets there might be in the cooling system somewhere as well as the paint on the lower unit.