I'm buying a '68 FB. That car has a locked up 302 that the owner thinks is due to sitting to long. The car was in a flood (sitting not running) and has been torn apart since. The engine is locked up solid and he even tried turning it over with a breaker bar. What can I pour into the intake and spark plug holes to soak and maybe break the engine free? I was thinking auto trans fluid. I figure if that doesn't work, I will be pulling the heads off. The engine only has about 10k on it, so I would like to be able to use it.

Something else has to go, usually a rod.
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