BBC Water Pump .900 Spacers (Pair)

The MEZIERE BBC Water Pump 0.900 Spacers (Pair) are precision-engineered aluminum spacers designed for big block Chevy engines undergoing cooling system optimization or engine bay modifications. These spacers serve as essential components when repositioning or extending the water pump mounting surface, allowing builders to clear headers, intake manifolds, or custom brackets that would otherwise interfere with standard pump installation. Whether you're running a classic muscle car restomod, a high-performance street engine, or a competition build, these spacers provide the offset needed to maintain proper coolant flow while accommodating aggressive engine modifications.

Constructed from lightweight aluminum and finished in a polished surface, the BBC Water Pump 0.900 Spacers deliver both durability and aesthetic appeal. The 0.900-inch thickness is precisely machined to maintain critical spacing between the pump and engine block, ensuring proper seal integrity and eliminating coolant bypass. Each spacer features integrated O-ring seals that guarantee a leak-free connection without requiring additional gasket material, reducing assembly complexity and potential failure points. The pair weighs only 0.53 lbs combined, making them negligible from a performance standpoint while their compact dimensions (4.65 x 2.15 x 5.4 inches) ensure they integrate seamlessly into tight engine compartments.

These spacers are ideal for builders working with big block Chevy platforms—including 427, 454, and 502 cubic inch engines—who need controlled water pump standoff distance to navigate complex header installations or custom intake configurations. Installation is straightforward: spacers sandwich between the pump and block using the existing bolt pattern, then secure with standard fasteners. The polished aluminum finish resists corrosion and maintains professional appearance under the hood, making them suitable for show cars as well as functional builds. Compatibility extends across most BBC applications using conventional water pump mounting, though builders should verify clearance with their specific header and intake combination before purchasing.