LS1 Water Pump Spacer Kit 1.5in

The ICT Billet LS1 Water Pump Spacer Kit 1.5in is a precision-engineered aluminum spacer designed specifically for GM LS-series engines. This 1.5-inch thick spacer kit repositions the water pump away from the engine block, a modification commonly required when upgrading to larger or custom radiator configurations, installing alternative cooling systems, or adapting non-LS components to LS engine platforms.

Constructed from billet aluminum and finished in natural (unpainted) form, the spacer maintains structural integrity while keeping weight minimal—a critical consideration in high-performance and racing applications where every pound matters. The kit includes all necessary gaskets and hardware for direct installation, eliminating the need to source fasteners separately. The precision machining characteristic of ICT Billet products ensures tight tolerances and reliable fitment across LS platform variants, whether you're working with LS1, LS3, LS7, or other LS-series configurations.

This spacer is essential for engine builders, hot rod enthusiasts, and performance shops performing LS engine swaps or comprehensive cooling system upgrades. Real-world applications range from custom street rods and muscle car restorations to off-road truck builds and track-focused performance vehicles. The included gasket and hardware set ensures proper sealing and eliminates the guesswork of matching compatible fasteners, saving build time and reducing the risk of coolant leaks.

LS-series engines have become the platform of choice for engine swaps and performance builds across the automotive aftermarket, and spacer kits like this one address specific cooling geometry challenges that arise when upgrading or modifying stock configurations. The 1.5-inch thickness provides the clearance needed for most common radiator and cooling fan upgrades without requiring additional custom fabrication.