Water Neck Outlet - GM LS w/As-Cast Alm Finish

The Water Neck Outlet - GM LS w/As-Cast Alm Finish is a precision replacement cooling system component engineered for General Motors LS-series engines. This outlet serves as the critical junction where coolant exits the engine block, making it essential for maintaining proper thermal management in performance and street applications. Whether you're rebuilding a classic LS swap, restoring an original engine, or upgrading a high-output platform, this water neck outlet delivers OEM-equivalent functionality with professional-grade durability.

Manufactured from aluminum in an as-cast finish, this water neck outlet provides excellent heat dissipation while resisting corrosion in demanding engine bay environments. The 75-degree outlet angle is specifically designed to optimize coolant flow direction toward standard radiator inlet configurations, reducing turbulence and improving thermal efficiency. The 1-1/2 inch ID hose connection accommodates standard cooling system hoses without adapters, ensuring straightforward installation and reliable seal integrity. PRW Industries' precision casting and finishing processes ensure dimensional accuracy and surface quality that meets or exceeds OEM specifications, critical for maintaining system pressure and preventing leaks under sustained operating conditions.

This replacement outlet is ideal for LS engine enthusiasts, restoration shops, and performance builders who demand reliability in cooling system components. It's particularly valuable when sourcing original-style or upgrade cooling configurations for LS-swapped vehicles, restorations, and road-race applications where system integrity is non-negotiable. Proper installation requires draining the cooling system and ensuring hose connections are tight and secure to maintain system pressure ratings. Weighing just 0.45 lbs and measuring 4.5 x 2.9 x 5 inches, this compact yet robust component fits within standard engine bay layouts and integrates seamlessly into both stock and custom cooling setups for GM LS engines.