GM LS Engine Water Neck Straight

The GM LS Engine Water Neck Straight from Racing Power Co-Packaged is a direct-fit cooling system component engineered for GM LS-series engine swaps and performance builds. This polished aluminum water neck provides a clean, reliable interface between the engine block and upper radiator hose, featuring a straight outlet design with a 1-1/2 inch ID hose connection and stainless steel hardware for corrosion resistance.

Constructed from cast aluminum and finished in a professional polished surface, this water neck incorporates an O-ring seal system to ensure a leak-free connection without requiring traditional gasket materials. The straight configuration simplifies intake manifold routing compared to angled designs, particularly valuable in tight engine bay applications where space constraints demand compact plumbing. Stainless hardware resists corrosion in both street and performance environments, eliminating the risk of seized fasteners during future maintenance or rebuilds.

This component is essential for LS engine swaps into non-LS platforms, classic car restorations, and high-performance cooling system upgrades. Whether building a street engine, track-focused machine, or restoring a vintage vehicle with modern LS power, a quality OEM-style water neck prevents cooling system leaks that can compromise engine temperature regulation. The Racing Power Co-Packaged design delivers OEM fitment quality at a competitive price point, making it a reliable choice for serious engine builders and DIY enthusiasts undertaking professional-grade installations.