I seem to recall that unlike previous versions which had both V-12’s facing “Backwards”, the final iteration of this popular series had its rearmost V-12 turned around for reasons concerning better weight distribution and more steam generating capacity. Having the “Front” of each engine facing the middle allowed for a single, albeit slightly larger accessory rack to accommodate both engines which allowed more room in back for steam generation capacity. While cosmetically not the prettiest unit in the series, arguably the best mechanically.
Was the E9 in fact the only one of the series to receive this modification?
Aside from a slight HP increase, was the 567C prime mover any better than its 3 predecessors?
(Not counting the Winton 201-A used in EA, E1 and E2 as it was a completely different engine with its own unique problems.)