Oil Pump GM LS Series Std Volume/Std Pressure

The Oil Pump GM LS Series Std Volume/Std Pressure is a direct-replacement internal wet sump pump engineered for LS-platform engines. Built for enthusiasts and professional mechanics who demand reliable engine oiling without sacrificing original geometry, this pump maintains OEM-spec flow rates and pressure delivery across the entire RPM band. Whether you're building a street machine, restoring a classic with an LS conversion, or maintaining a high-performance crate engine, a factory-spec oil pump is the foundation of engine longevity.

This standard-volume, standard-pressure pump features a 7/8-inch inlet port and is configured for internal wet-sump operation, making it compatible with factory LS pan and block configurations. Standard-displacement pumps like this unit are optimized for engines running stock or mildly modified power levels; they deliver sufficient volume to lubricate all critical bearing surfaces while maintaining system pressure within factory specifications. The compact design (7.3 x 3.2 x 8.7 inches) and modest weight of 2.55 lbs ensure it integrates seamlessly into existing engine bays without modification, preserving OEM clearances and mounting points.

This pump is ideal for LS1, LS2, LS3, LSx, and 5.3L applications where factory oil delivery is required or preferred. Buyers performing LS conversions into pre-LS platforms, replacing a worn factory pump, or assembling a numbers-correct restoration will find this standard-spec pump the correct choice. Installation requires only removal of the old pump and bolt-in replacement—no custom sumps, modified pans, or external system modifications are necessary. Verify your specific LS variant and oil pan configuration before purchase to ensure compatibility with your build.