Hope that you don't mind this post - it has nothing to do with NZ cars but the engines mentioned are maybe around in a few workshops in NZ.
Ranger engines were fitted to most of the Grumman Widgeon aircraft that were imported but were replaced by updates as they timed out.
http://www.google.com.au/url?sa=t&rc...vyJgZHWKHAjZaQ
http://www.google.com.au/url?sa=t&rc...oxfaOBwAfBPCgw