[bill dedman]

There was a website a while back called "Uncommon Engineering" that featured some weird Hudson experimental engines that had been modified by adding a head that contained an overhead valve for each cylinder, and because there was only ONE valve (they kept the two side valves and used them both as exhaust valves), it was HUGE, like maybe two and three-quarters of an inch in diameter. It served as an intake valve, and I can only guess at how good the cylinder filling was with this setup.

That website has shrunk and none of the really weird stuff that used to be on there seems to be shown, now. Too bad; it was crazy....