Product Description
LS Billet Thermostat Housing LS1, LS2, LS6, LS7 4.8 5.3 5.7 6.0
Custom water neck fitting for LS1, LS2, LS6, style engines. This water neck is machined from a solid piece of 6061-T6 aircraft grade billet aluminum.
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").
This unit accepts the original GM thermostat from a LS1, LS2, pre-2008.
It will also work with many of the 4.8L, 5.3L, or 6.0L Vortech Truck water pumps.
This neck will not fit 2008+ LS3, LS7, LS9, LSA, L76, or L92 water pumps.
