Can this be saved?

[Viv W]

Chuck those engines into a tank of water and leave them to soak for a month, then try a big block of wood and tap the pistons. If they still wont budge, then put it back into the water another month and try again. Motors with severe rust may take up to 3 months to come loose.
Water caused the rust and will also disolve it, works better than penetrating oil or acetone.
I recently did a Model A motor that was rusted solid, after a month, I got all the pistons and valves out, plus got the rings and gudgeon pins out, no problem.
Got this info out of a Aussie hot rod mag and believe me it works, you will be amazed