Hi....Paul Conner here....Yesterday I stopped at our local CarQuest auto parts store and asked to look at their heater core and airconditioning evaporator core catalogs. Both catalogs had great pictures, and hold on to your seats....DIMENSIONS....height, width and depth.  I then stopped at an AutoZone store, and they have the same catalogs.  Hope this is helpful.  In this case, I think that pictures truly ARE worth a thousand words.  Paul Conner