Compatibility:Compatible With Swivel thermostat housings water neck fits for GM LS engines LS1, LS2, LS 3, LS7, LS9, LSA, L76 and L92 Vortech Truck Engines 4.8L, 5.3L, 6.0L
360 DEGREE: 360-Degree swivel, designed to flow 20% more than the factory flow rate