I got a free engine that's missing some parts for a special I'm collecting parts for. Lucky me in the same family of engines a lot of parts are interchangeable except the harmonic balancer that are different in diameter and that part exists only as a reconditioning service for my engine, but you have to have one in the first place. So my question is : can I take a new repop damper for the bigger engine, turn it down to where it doesn't interfere with anything and have it rebalanced? I did try that on an old big damper (the machining part) and I don't hit the rubber with plenty of margin and it fits the crank like a glove, I just have to shim the pulley. Any thoughts?