Sid, be mindful of the stock motor in some of these older Williams pieces, ...they’re known amp hogs....I’d do some testing and know my amp draws before taxing/ destroying expensive things......you might get away with it, or you might not, ....but “ a man’s got to know his limitations” as Clint would say.....you could always Pittman swap it, and surrender some top end speed, but that’d be fine by me....those locomotives are 44:1 gearing......and with the stock motor spinning at warp speed, they like amps.....a lot .....tread lightly....
Pat