Proflow Power Motor, GM LS Engine Swap, Universal , Bolt-In, Steel Polyurethane Black/Red Weld In , Pair - PFEEM007Part Number: PFEEM007 Proflow's weld in engine mount kits allow you to fabricate your own custom engine mounts for your particular application. They have urethane bushings and include both the engine and universal frame brackets which are designed to be cut and welded on a vehicle to vehicle basis.