LS Cooling Manifold Black - A/C Delete

The HOLLEY LS Cooling Manifold Black - A/C Delete is a purpose-built water pump housing designed for GM LS-series engine builders performing air conditioning elimination or complete cooling system customization. This manifold serves as a mechanical water circulation hub, allowing builders to redirect coolant flow when removing factory A/C components while maintaining optimal engine cooling performance. It's ideal for street rods, race engines, engine swaps, and high-performance builds where weight reduction and simplified plumbing are priorities.

Constructed from aluminum and finished in durable black paint, the LS Cooling Manifold features a 1.4-inch hose barb inlet that accommodates standard cooling system hoses without additional adapters. The aluminum construction provides excellent thermal conductivity while remaining lightweight—critical for performance applications where every pound counts. The mechanical design integrates seamlessly into LS-based engine bay layouts, offering clean routing options and eliminating unnecessary factory cooling passages that add weight and complexity to modern engine swaps.

LS engine enthusiasts benefit most when converting older vehicles with modern LS powerplants or building competition engines where cooling system simplification improves reliability and reduces parasitic drag. The manifold's straightforward 1.4-inch barb inlet connects directly to aftermarket water pumps and custom radiator setups, making it compatible with universal cooling kits and traditional radiator/hose configurations. Installation requires basic mechanical knowledge and fits within standard LS engine bay dimensions, making it suitable for DIY builders, fabrication shops, and professional engine builders alike.