1966 225 slant 6 Motor

Is it a good running motor or something that needs a rebuild? I'm not looking to rebuild one.
I did not see the engine run, but I got it from a known member on this forum that said it was a running car when he pulled the motor. However, I cannot guarantee that it does not need rings,valve stem seals, timing chain, gaskets ,,,, it is a 50+ year old motor.