crank shaft will not turn 360 deg.
It has to , that's how an engine works, if not then the engine is seized and you will need a new one..
If it won't rotate 360 then chances are high that it has either thrown a rod and it has cracked or hitting the block, or the are other concerns in the transmission or clutch area.
If the car has a timing belt then The timing belt either broke or jumped some teeth ... if your lucky you may replace it with no problem .... if not ,,,you bent a valve and the head needs to come off
Tom has the correct answer....
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