LS Cooling Manifold Black - A/C Delete

The HOLLEY LS Cooling Manifold Black - A/C Delete is a specialized water pump housing designed for GM LS-series engine builders who are eliminating air conditioning or customizing their cooling systems. This manifold acts as a mechanical water circulation hub, enabling builders to redirect coolant flow when removing factory A/C components while ensuring optimal engine cooling performance. It's particularly suitable for street rods, race engines, engine swaps, and high-performance builds where reducing weight and simplifying plumbing are essential.

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 the need for additional adapters. The aluminum construction not only provides excellent thermal conductivity but also keeps the weight low—crucial for performance applications where every ounce matters. 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 will find this manifold particularly beneficial when converting older vehicles with modern LS powerplants or building competition engines, as the simplification of the cooling system enhances reliability and reduces parasitic drag. The straightforward 1.4 inch barb inlet connects directly to aftermarket water pumps and custom radiator setups, ensuring compatibility with universal cooling systems.