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Might be easier and cheaper to rip it off with a 3 leg puller, if you have one, and buy a new balancer.
Edit editAn LS style harmonic balancer puller might work.
https://www.onlineautoparts.com.au/...AyyaX61Qs1YxSiohUwjV2NDZLvBVDR7IaAn8dEALw_wcB
6mm for memory but not sure of the length, possibly 100 long or 120 but place the bolt in a vice and bend about 20 mm at right angles with a hammer or even a little more than right angle so they hook in through the balancer holes.Interesting, that looks promising, and I'd rather save the balancer if I can. What size bolts did you use?