You are going to get more vibration because you are removing the vibration damper .... you may not feel them because they are harmonics at higher rpm.
Whether it is a damper that is fluid filled or just a ring of cast iron, it is no longer present, so the damper effect is actually removed.
Whether this is going to affect your engine is the real issue. If you give the car a spanking every now and then, probably not, but drag it or track it with sustained hi-rpms, it might.
Many years ago, with a race engine based on a Traco-Olds 215, that was all internally balanced and with the crank damper deleted, we kept losing cranks and eventually solved the problem by using an ATL race damper, so I can confirm that revving the engine hard enough for long enough with cause failure.
DD road duties, it "should" last for as long as you own it ...
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