"LOCTITE 660 is a high-strength retaining compound with good gap-filling properties, ideal for repairing worn-out seats, keys, splines, bearings, or tapers without remachining."
Edit: as I recall, it takes some hours for the compound to harden. Might be best to keep the headset press in place for at least half a day or so.
Yup! been there and done that. I works.