CBM MOTORSPORTS™ LS1/LS2/LS6/LS7STRAIGHT BILLET WATER NECK FITTING W/160F THERMOSTAT & SEAL Product Description:
Custom water neck fitting for LS1, LS2, LS6, and LS7 style engines. It will also work with many of the 4.8L, 5.3L, or 6.0L truck water pumps. This water neck is machined from a solid piece of 6061-T6 aircraft grade billet aluminum right here in the USA. This new version is 3D profiled and flows 20% better then our old unit. It bolts in place of the factory angled unit and accepts factory size hose (1.5"). Includes a 71C thermostat(roughly 160F) and new seal. This is helpful when replacing early LS1's with a 1 piece thermostat or simply piece of mind from a new unit. This neck will not fit 2008+ LS3, LS7, LS9, LSA, L76, or L92 water pumps.