Hello suebutcher and Mowerfreak That's a nice conversion there.
Generally, engine makers enable changing engine orientation North/South or East/West. In fact, when mower makers introduced their own high-arch designs in the 1970s, many makers had to turn the engine around so it would fit the higher and wider chute dimensions, and permit better access to the spark plug.
The practice was also done for aesthetic reasons.
In fact, Super-Swift did this with the Villiers 2-stroke, the Kirby 2-stroke and with Briggs 4-strokes.
