Top Street Performance Chrome Zinc 45° O-Ring Style Water Neck for Chevy V8

This 45° water neck is designed to provide a secure coolant outlet connection between the engine and upper radiator hose. Its zinc construction with a chrome finish supports reliable coolant routing while giving the engine bay a clean finished look.45° Outlet ConfigurationThe outlet angle helps route the upper radiator hose cleanly in performance, restoration, and custom cooling system layouts.Secure Hose ConnectionDesigned to create a tight connection at the thermostat housing area to support reliable coolant flow and help reduce leak points.Zinc ConstructionBuilt from zinc to handle coolant system heat, pressure, and repeated service conditions.Application-Specific Cooling FitmentDesigned for the listed engine family and sealing style, with fitment verified by the product dimensions and specifications.COMPATIBLE WITHCHEVROLET BIG BLOCK V8 GEN. II (MARK IV)6.5 L / 396 in36.6 L / 402 in37.4 L / 454 in3CHEVROLET BIG BLOCK V8 GEN. V 7.4 L / 454 in3CHEVROLET BIG BLOCK V8 GEN. VI 7.4 L / 454 in3CHEVROLET SMALL BLOCK V8 GEN. I 4.3 L / 262 in3 4.3 L / 265 in3 4.4 L / 267 in3 4.6 L / 283 in3 4.9 L / 302 in3 5.0 L / 305 in3 5.0 L / 307 in3 5.4 L / 327 in3 5.7 L / 350 in3 6.6 L / 400 in3NOTE: Be sure to determine correct water neck angle, as radiator hoses vary between applications.COMMON VEHICLE APPLICATIONSClassic and performance vehicles using matching thermostat housing dimensionsStreet rods and custom cooling system applicationsEngine builds requiring the listed water neck angle and sealing styleSpecifications:Water Neck MaterialZinc AlloyWater Neck FinishChromeWater Neck Style45°Sealin

• 45° Outlet Design – Helps improve upper radiator hose routing
• Secure Coolant Connection – Supports leak-resistant cooling system operation
• Zinc Construction – Built for heat, pressure, and long-term reliability
• Application-Specific Fitment – Designed for the listed engine and sealing configuration