I would imagine they are factory experimental heads. I wonder what light Denny manner could shed on them. Your right, they are definitely conversation pieces! If they were mine, I'd have them displayed on my coffee table! How long have you had them and where did you get them from?
Bwahahahahahahaha......I know what you're referencing........Guy at work and I say that all the time. Just showed him your post and he laughed as hard as I did.
Sorry fellas, didn't mean to derail a cool thread about some really interesting parts.....its just a quote from "Dumb and Dumber" about skis..... "Are those your skis?" "Yep" "Both of them?" Like you'd only own one of the skis.....