These billet aluminum water necks are designed for Ford 4.6/5.4 engines. They are designed to swivel 360 degrees for maximum versatility in mounting and feature a 1.5? hose connection and all the necessary clearance for a thermostat. This water neck works with the OEM thermostat and hose. Will work with both nylon composite integrated manifold and stand alone aluminum coolant crossover manifolds.
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