Motor Plate Spacer Kit

The Motor Plate Spacer Kit from POWERMASTER is a precision aluminum spacer assembly designed to properly distance the alternator or motor mounting plate from the engine block on Big Block and Small Block Chevy applications. This specialized 1.875-inch thick spacer resolves common clearance issues when upgrading to larger displacement engines or when installing high-output charging systems that require specific standoff distances. Mechanics and engine builders rely on this component to maintain correct pulley alignment, prevent belt binding, and ensure efficient power transmission between the alternator and crankshaft.

Machined from lightweight natural aluminum, the Motor Plate Spacer Kit delivers the structural rigidity necessary to support alternator loads while maintaining precise dimensional tolerances. The 1.875-inch thickness is engineered to accommodate both block variations found across the Chevy Big Block and Small Block families, ensuring consistent mounting geometry regardless of specific engine casting variations. The complete hardware kit includes all fasteners and installation components required for direct bolt-on assembly, eliminating the need for sourcing additional aftermarket hardware and reducing installation time.

This spacer kit is essential for hot rod builders, engine rebuilders, and performance enthusiasts working with stroker motors, crate engines, or high-amperage alternator upgrades on Chevrolet platforms. Installation is straightforward—the kit simply positions between the alternator mounting plate and engine block using the included hardware, requiring only basic hand tools. Compatibility spans both naturally aspirated and supercharged Big Block Chevy and Small Block Chevy engines, making it an indispensable solution for maintaining proper electrical system geometry during engine modification.