The Ford zetec range of engines are popular fitments in most Quantum models and members often ask about fitting in particular models.  This schematic was forwarded to the club my Dazq Dazq via Facebook.  It looks to be the 'Silver Top' Zetec E engine, that is the most used in the Saloon, 2+2 and H4 models.  The 1.8l block is identical to the 2l, so the dimensions should be valid for both.  To view the schematic containing the dimensions plese follow this link.