All the aluminum master cylinders I have found are for power brakes and also have the brake line outlets on the side toward the engine. Water pumps are on E-Bay every day but are they legal? On E-Bay look at (2.3L ford)for more goodies like stamped sheet metal water necks. I have a Esslinger aluminum water pump pulley, and it weighs more than a stock pulley. It also will not clear a stock lower crank pulley. DICK