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. Requires stock o-ring. 

Features:
*CNC billet aluminum construction for superior strength and appearance.
*Rotating 90 degree water neck adjusts to many different applications.
*Designed for use with both nylon composite integrated manifold and stand alone aluminum coolant crossover manifolds.

Product Tech
80-059 Installation Guide (PDF)