[OldTee]

4sd911 is dead on.

Here is what I would do.

Have the cylinders bore scoped, looking for marks that would show a piston pin floating. If nothing found, go drive.

This can be done with the engine in the car.

If you find a bad cylinder, pull the engine and fix the bad one. You can fix the chain ramp at the same time.

The chain ramp can be fixed by lowering the engine a little then removing one chain cover. You have a 50-50 chance of getting the right one. An audio check with engine running may tell you if a chain is slapping on one side. That could reduce the 50-50 to 60-40.

Good luck.

PS. Nice young hands, long life line!