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 designed for GM LS-series engine swaps and performance builds. This polished aluminum water neck provides a reliable interface between the engine block and upper radiator hose, featuring a straight outlet design with a 1-1/2 inch ID hose connection.

Constructed from cast aluminum and finished with a 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, particularly valuable in tight engine bay applications where space constraints demand compact plumbing.

This component is ideal for LS engine swaps into non-LS platforms, classic car restorations, and high-performance cooling system upgrades. Whether building a street engine or restoring a vintage vehicle with modern LS power, this water neck is a reliable choice for maintaining optimal engine temperature regulation.