Is this a Lycoming engine ? Year?

[1950panhead]

http://i1112.photobucket.com/albums/k499/jehagado/lycoming1_zps9nhpzg4o.jpg

[1950panhead]

http://i1112.photobucket.com/albums/k499/jehagado/lycoming2_zpsywky3dhd.jpg

[crusty old aviator]

I'm not aware of Lycoming ever getting into motorcycle engines...that's quite the valve train, though!

[martymayes]

You gonna convert that Honda Rebel into a V twin??