Haven't seen anything like this.
Dang! Too bad! My shop teacher, Mr Hunziger (sp?) was showing us different engine designs of companies that "failed" like REO, Clinton, etc... and when he came to this motor, it was just a block, and he said (in 1981) that the kart-racers liked these motors and were using them for racing. They were pretty much a normal flathead, tipped forward, to help flow. If I ever find out more about this, I'll fill you guys in.
Sorry about the detour. Back to "Revenge of the Clones/ The Rise of the Cheese-E"