BBC Vacuum Pump Drive Kit

The BBC Vacuum Pump Drive Kit from MOROSO is a precision-engineered crank mandrel drive system designed for Big Block Chevy engines requiring vacuum pump integration. This 4-inch long mandrel kit enables reliable accessory drive functionality on high-performance and street applications where vacuum-assisted braking or other vacuum-dependent systems demand a dedicated, belt-driven pump solution. Built for serious engine builders and restoration specialists, this drive kit solves the challenge of properly mounting and powering a vacuum pump on BBC platforms without compromise to engine bay layout or performance.

The kit features Gilmer and V-belt pulley compatibility, allowing flexibility in accessory drive configuration based on your existing serpentine or traditional belt system. The 4-inch mandrel length is engineered to position the vacuum pump at the optimal distance from the crankshaft, ensuring proper belt tension and alignment while minimizing vibration and wear. MOROSO's manufacturing standards guarantee precise tolerances and durability through thousands of engine cycles, whether on the street, strip, or show field. The mandrel accepts standard vacuum pump pulleys, making it compatible with most aftermarket and OEM vacuum pump designs.

This drive kit is ideal for Big Block Chevy restorations, custom engine builds, and performance installations where factory vacuum pump mounting points have been removed or modified. Installation requires basic engine bay clearance verification and standard pulley setup procedures—no welding or fabrication needed. The compact footprint (4.5 × 4.4 × 11.6 inches) and lightweight design (4.83 lbs) make it easy to integrate into tight engine bays. Whether you're rebuilding a classic muscle car or constructing a modern BBC stroker, this MOROSO vacuum pump drive kit delivers the reliability and precision fit that professional builders trust.