John Deere 140

Its an old 1967 with a K321 model Kohler engine and the engine is shot. Someone let it set out without hood or sparkplug, so does anyone know where I might find a K321AS engine ? or what might be a replacement? It has a hydro transm with drive shaft off the flywheel. Hooking the driveshaft to engine would be the challenge on different engine. This eng is a lost cause Its rusted beyon boring and the carb mounting bolt hole"ear" is broke off. Thanks for any help

A bit pricey. Call them about the Briggs conversion.

http://www.smallenginewarehouse.com/RepowerItems.asp?Brand=John Deere&Model=140