Chrysler engines were used for all sorts of industrial uses. Motorhomes, trucks, air raid sirens, industrial compressors, mining equipment, etc. The shortblocks are usually the same as HP engines but sometimes the upper parts were different. Personally I consider 413 industrial engines to be scrap but not everybody shares that opinion. A 440 industrial engine might be an okay core for a street car or a race car. You just don't know until you invest a bunch of time in tearing it apart.
