As stated before engines sold by dealerships, and parts houses, come in a variety of ways. The first is the engine block without heads or sheet metal, just the basic internal Parts are there. This is referred to as a Shortblock Second is an upgrade, all of the Shortblock parts,with the addition of cylinder heads. This is referred to as a Long block. Third is a little more complete with the Longblock,an Shortblock, plus all the sheet metal parts freeze plugs installed as well as other parts like a water pump usually no intake manifold. This is referred to a a complete engine. Fourth is an with all parts necessary to run from carb to pan water pump to distributor. Just add oil and coolant after install pretty much. This is referred to as a Crate Engine. at no time should an engine be called a motor because motors are electric.