Years ago I saw a ad in a magazine about converting a air cooled Corvair engine to a outboard engine lower half. The man who was doing the conversion was named Wayne Horning. He was well known for making hot rod engine parts for inline six Chevy and GMC engines starting in the late 1940's. There was a picture with the ad showing the Corvair / outboard conversion. Later on he made parts for the aerospace industry in Southern California. I often wondered if any of the conversions were ever build and sold and did any survive ? A lot of his hot rod speed parts are being reproduced for six cylinder race fans.