Oil Pump 5 Stage L/S w/ Drive

The Oil Pump 5 Stage L/S with Drive is a high-displacement internal gear pump engineered for serious engine builders and performance enthusiasts who demand reliable oil circulation under extreme conditions. This pump is purpose-built for modified and stroker engines where standard pumps fall short, delivering consistent volume across wide RPM ranges to protect critical bearing surfaces and cam drive systems during high-output operation. Whether you're running a naturally aspirated monster or a forced-induction build, a proper 5-stage pump ensures oil delivery to every journal before cylinder pressure peaks.

The 5-stage design increases displacement and flow capacity compared to conventional 2 or 3-stage pumps, enabling higher RPM capability without cavitation or pressure drop at the cam and lifters. The integral drive coupling eliminates external drive belt complexity and potential slippage, creating a direct mechanical connection that guarantees pump speed follows engine RPM faithfully. This configuration is ideal for applications like LS-platform engines, where space efficiency and mounting simplicity are critical. The pump's robust internal geometry handles the thermal stress of modern synthetic oils and maintains volumetric efficiency even as viscosity changes across the operating temperature range.

LS engine swaps, stroker builds, and vintage hot rods benefit most from this pump's high-flow characteristics and compact package. Installation requires proper clearance verification and compatible oil pan pickup tube sizing to avoid cavitation at idle. Pair this pump with a quality high-capacity pan and ensure your oiling system relief valve is tuned to prevent over-pressurization, which can rupture gaskets or damage bearing surfaces. Weighing 10.65 lbs and measuring 11.3 × 11.4 × 15.1 inches, verify fitment in your specific engine bay before purchasing.