Melling M10295, Standard Volume, 10% Higher Pressure Oil Pump Oil Pump GM LS Gen 3/4 oil pump. Design changes to the housing, cover, and components together combine to improve the performance, durability, and capability of the oil pump. Melling has engineered this oil pump specifically for performance LS applications. It can be used in any GM LS application that uses Melling’s stock replacement M295 oil pump. Features include: Exclusive rotor design with improved strength Hard coat anodized aluminium housing Phosphate coated cast iron cover High pressure (+10 psi) spring installed Includes standard pressure spring Includes optional +25 psi spring for COPO applications Threaded pressure relief nut Uses 7/8” stock bolt-on oil pickup tube assembly Includes O-rings for oil pickup tube assembly Also available is the warspeed oil pick up bracket a must have item on all LS motors