Balancing of stroker kits and vibrations

I would not run that crank. You can see the damage, and the harmonic dampener recieves the vibes through the press fit on the crank. If that get's loose or the surface area is decresed, so is the effectiveness. Not to mention there may be damage to the internal structure of the crank where it was ok for what you were doing, but may be an issue down the road. Harminocs are bad. They stress the block, crank, all the parts, the flexplate & convertor - loosen faseneters, etc. And the worst part is you don't have to feel them for them to be present. So for the reasons I mention I'd get rid of it. Skip the Eagle cast cranks BTW.