Melling Performance 10294 - GM LS Low Volume Oil Pump for LS Blocks with Priority Main Oiling.

Description

Engineered and manufactured in the USA to the highest production standards, Melling performance oil pumps deliver dependable oil control and precision lubrication in high-performance competition environments. Sized specifically for performance aftermarket LS engine blocks featuring priority main oiling systems (such as Dart LS Next, Concept Performance, or RHS) without Variable Valve Timing (VVT) or Displacement on Demand (DoD), this pump delivers 15% lower volume than stock to prevent excessive crankcase oil accumulation and top-end aeration at high RPM. Constructed with a CNC-machined, hardcoat anodized cast aluminum housing and a phosphate-coated cast cover, it utilizes standard steel rotors, accommodates a 7/8" bolt-on pickup screen, and includes an optional high-pressure relief spring to dial in exact oil pressure requirements. Every pump is individually flow- and pressure-tested under simulated operating conditions to guarantee maximum reliability out of the box.

Features & Technical Highlights:

• Engineered for Priority Main Oiling: Delivers 15% lower displacement volume than standard factory pumps, making it the ideal choice for competition aftermarket LS blocks (e.g., Dart LS Next) to prevent over-oiling the valvetrain and running the oil pan dry at sustained high RPM.
• Durable Surface Treatments: CNC-machined cast aluminum body features a wear-resistant hardcoat anodized finish paired with a heavy-duty phosphate-coated cover.
• Adjustable Pressure Relief: Ships with standard pressure installed and includes an optional high-pressure relief spring (uninstalled) to tailor system pressure to your engine's bearing clearances.
• Precision Gerotor Assembly: Features premium steel rotors machined to exacting tolerances to ensure efficient, pulse-free fluid delivery and minimal parasitic drive loss.
• Complete Installation Hardware: Packaged complete with required oil pump body and 7/8" oil pickup tube O-rings for a reliable, leak-free installation.
• 100% Factory Bench Tested: Individually dynamometer-tested by Melling for real-world pressure and flow before packaging.
• Application Compatibility: For use on competition wet-sump LS engine builds without Variable Valve Timing (VVT) or Displacement on Demand (DoD/AFM).