Oil Pump Shaft BBC Hex Standard 8.736

The Oil Pump Shaft BBC Hex Standard 8.736 by MOROSO is a crucial internal engine component designed specifically for big-block Chevrolet engines, ensuring optimal oil circulation and pressure regulation. This hex-drive shaft acts as the vital link between the engine's crankshaft and oil pump, facilitating consistent lubrication flow to all bearings and journals within the engine block.

Constructed from precision-machined steel, this shaft features a standard hex profile measuring 8.736 inches in length, allowing it to interface directly with compatible oil pump drives and crankshaft slots. The hex design prevents slippage and ensures positive engagement across all RPM ranges, which is essential for maintaining oil pressure in high-performance engines where risks of pump cavitation and oil starvation are prevalent.

Ideal for engine builders, restoration specialists, and performance enthusiasts, this component is compatible with various big-block Chevy platforms, including the BBC 427 and 454. Its lightweight design, weighing just 0.41 lbs, minimizes inertial load, while the precise dimensions help avoid interference with gaskets and other internal components during engine assembly or pump system replacement.