[W126 Coupe] Chain Jumped

[Pavel]

Yeah I already have the new valve cover so will not need to buy that.  I
also already put it on for the time being so there will be no dust going
inside the motor.  I guess my question is if my pistons smashed the valves
is there going to be obvious damage to the heads like rockers laying
around, or bent, snaped cams? Another question was how likely is it when
your chain jumps that the piston will meet the valve? Or can everything
appear normal, so I will need to take out all the spark plugs and see where
the pistons are and if there is any damage to the top of them.
thanks
pavel