A 60312 is a 6 cubic inch, first generation design, horizontal crankshaft, plain bearing, rewind starter engine. Like the 60102 of great fame as a reel type mower engine, it is 2 hp. However marvic's 5 cubic inch engine (if his bore and stroke figures are correct) is unlikely to be as powerful. The 60102 is a vacuum carburetor engine. I have heard rumours of 6 cubic inch gravity fuel feed engines, though I haven't heard a type number for one before. A picture or two would be of interest, Bob, for the archives.
