BB Chevy Oil Pump Shaft

The MILODON BB Chevy Oil Pump Shaft (Part No. 23060) is a precision chromoly oil pump drive shaft engineered for big block Chevrolet engine builds. Constructed from chromoly steel with pinned steel collars, this component delivers the durability and concentricity required for sustained high-RPM operation. The stock length configuration maintains OEM compatibility while the chromoly construction provides superior strength compared to standard steel alternatives, making it essential for street, strip, and performance applications where reliable oil circulation under load is non-negotiable.

The pinned steel collar design ensures positive engagement with the oil pump drive gear, eliminating rotational slip during peak-load scenarios. Chromoly's higher tensile strength than mild steel resists wear and galling at the collar interface—critical when cam timing changes or higher-output builds demand sustained engagement. Weighing just 0.43 lbs, this shaft integrates seamlessly into existing oil pump systems without requiring additional modifications. The stock length maintains proper clearance and alignment geometry within the engine block and timing cover assembly.

This component serves engine builders, performance shops, and enthusiasts rebuilding or upgrading big block Chevy powerplants—particularly those stepping up to higher displacement, aggressive cam profiles, or elevated fuel pressure systems. The MILODON BB Chevy Oil Pump Shaft is ideal for restorations requiring OEM-correct geometry, as well as modern performance builds where maintaining reliable oil delivery across the entire rev range determines longevity. Installation requires only removing the original shaft and securing the new unit with the existing fasteners and timing cover assembly.