Most likely it dropped a valve or broke a valve off in the cylinder taking the bottom end with it.

what you need to do, is PULL THE SPARK PLUGS OUT. if one of your spark plugs is bit in half, or missing half itself, the answer is find another motor.

if its intact, then you have bent valves an it could be salvaeable. My price i quoted is for bent valves, which means you dont need to pull them otor out.

I would need to see the car to give you a full diagnosis.

you can trailor it to me an i can look at it tomrrow