57 T Bird frozen motor

I have a 57 T bird which has been in storage for 15+ years. The car is in very good shape with a great paint job. The motor is stuck and I assume from being parked so long. I have removed all belts, starter, and plugs. The motor will not turn! The car has an automatic transmition so pushing or pulling is not an option. I have added deisel fuel to each spark plug hole. Any ideas short of pulling the motor. out.



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