Mr. Gasket Chev LS Thermostat Housing Water Neck # 2671NA Rate_Engine Fan Included:Yes

Fan Included:Yes

and bulkhead fitting for returning fuel to tank) Dual-pattern bolt-on carburetor replacement

and high-flow designs

They are manufactured from cast aluminum

Mr. Gasket Chev LS Thermostat Housing Water Neck # 2671NA Rate_Engine Fan Included:YesMr. Gasket Chev LS Thermostat Housing Water Neck # 2671NA Water Neck, Aluminum, Polished, Straight Up, 1. 50 in. Hose, GM, LS Engine, Each Water Neck Style: Straight Swivel: No Sealing Style: O ring Water Neck Material: Aluminum Water Neck Finish: Polished Water Neck Outlet Size: 1. 500 in. Thermostat Included: No Mounting Hardware Included: Yes Heater Bypass Provision: No Quantity: Sold individually.