US built engines rotate clockwise where UK built engines rotate counterclockwise
Not quite true. For example, on the Beechcraft Duchess the left hand engine rotates clockwise and the right hand engine rotates the opposite way. This eminently sensible arrangement eliminates the critical engine problem. I dunno why more piston twins don't have that counter-rotating arrangement.
The Rolls Royce Continental engines, despite being UK built, rotate clockwise.