Alum Water Neck 1.50IN Hose GM LS1 LS2

The Alum Water Neck 1.50IN Hose GM LS1 LS2 from REDHORSE PERFORMANCE is a precision-engineered coolant distribution component designed for LS engine builds and modifications. Whether you're building a street machine, performance daily driver, or high-horsepower track engine, this aluminum water neck serves as the critical junction point between your radiator hoses and cylinder head water passages. It's an essential upgrade for builders who demand reliability and clean aesthetics in their cooling system layout.

Manufactured from lightweight aluminum alloy, this water neck features a 1.50-inch hose barb connection designed for universal 1.50-inch diameter radiator hoses—the standard size for most LS1 and LS2 cooling systems. The aluminum construction provides superior heat dissipation compared to cast iron OEM components while reducing overall engine bay weight, a key consideration for performance and efficiency-focused builds. REDHORSE PERFORMANCE's design ensures proper flow dynamics and pressure integrity throughout the cooling circuit, critical for maintaining optimal operating temperatures under sustained high-output conditions.

This water neck is ideal for LS1 and LS2 engine swaps, crate engine installations, and complete cooling system overhauls where custom hose routing is required. The 1.50-inch connection diameter ensures compatibility with quality performance radiator hoses and water pump outlet fittings common in aftermarket LS cooling kits. Installation is straightforward—secure the barbed fitting into 1.50-inch hose with quality hose clamps and you're ready to flow coolant efficiently. Weighing just 0.525 pounds, this compact aluminum component measures 3.05 x 3 x 4.7 inches, making it an excellent choice for tight engine bay configurations where space optimization matters.