[QUOTE=brichter;95027]....was nice because you could use the merc props, a little better and more of a selection.
Here is the plate that is needed to switch the input and output shafts.[/QUOTE, ]

I raced one of these fabulous engines in the early 70's, had know idea this counter plate was available, wish I had, had to borrow left hand props and use them to cast new ones in bronze, had a trunk load of Merc props.
Old Racer.
Australia.