Abstract: An engine test stand assembly includes an elongated front support having a pair of coupling sleeves mounted thereon. The coupling sleeves are coupled to a pair of elongated lateral supports. A pair of receiving members is positioned on the front support to receive ends of an engine hoist to stabilize the hoist with respect to the front support. Each of the lateral supports has one of a pair of vertical mounts attached thereto. The vertical mounts support post members to secure the post members to an associated one of the lateral supports. A pair of engine supports each includes a top end and bottom end. The bottom ends engage the front support and the top ends of the engine supports are abuttable against an engine to hold the engine above the front support. A pair of lower supports mounted on the post members is engageable with the engine.