Trans oops !
I think you'll be okay. The pump will fill the converter. Converters used to have drain plugs on 'em & they filled back up. My biggest concern is for the bearings in the converter. If it's an old converter it should be fine. If it's a new one it's hard to say what kind of lube might have been put on them during assembly. Maybe sombedy else will chime in on this.
:burnout: