Had to change out my origanal water pump after 25 yrs. 66 saw two extra cylinders added resulting in 2494 and 2994cc. The ford essex v6 engine was a 90 v6 engine family built by ford motor company at the essex engine plant in windsor ontario canada unlike the british essex v6 the canadian essex used a 90 v configuration in addition to having different displacements and valvetrains with ford s essex engine plant idled as of november 2007 this engine was succeeded by the ford duratec 35.