I don't beleive there is any way to tell at this point in time if you have an engine problem. My father bought a old willys jeep that sat at least 15 yrs. It to was froze up. He would pour a mixture of kerosene and oil down the spark plug holes every day. At the same time try to turn the crank with a large wrench. Using a big hammer to hit the wrench once or twice. within a week the crank became unfrozen. He continued this for another week, moving the crank and adding the mixture. Wal La it now turned over freely and started and ran for many years. good luck

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Stable:
1973 450sl
1978 red diamond ice vette
1975 steel blue convertable vette
2002 steel blue dakota quad.