Engine Oil Pump High Volume High Pressure - LS-Series

In this review the Engine Oil Pump is evaluated for GM LS-Series owners seeking a reliable, higher-capacity internal wet sump pump. The bottom line: this Melling-sourced pump delivers notable oil pressure and volume for engines needing stronger circulation, making it a sensible replacement for builds that require robust supply at idle and under load. Fitment and value are strengths customers repeatedly mention, though a few buyers reported mixed experience with oil flow in certain installations.

Key Features

• High Volume, High Pressure: Designed to increase oil flow and maintain stronger pressure, benefiting engines that run at higher RPMs or have added stress.
• Internal Wet Sump Design: Replaces the factory internal pump without altering the sump layout, so installation is straightforward for compatible LS-Series engines.
• 7/8 in Inlet: The 7/8 in inlet provides a larger feed path that helps sustain oil delivery under demanding conditions.
• Cast Aluminum Housing: A durable housing reduces weight while preserving structural integrity for long-term use.
• Gasket Or Seal Included: Ships ready to install with the necessary gasket or seal to ensure a reliable mating surface and limit leaks.

Who It's For

The Engine Oil Pump suits GM LS-Series builders, performance street engines, and anyone upgrading an older or worn pump to regain stronger oil flow. It is particularly relevant for engines running higher idle pressure targets or those with tighter bearing clearances that benefit from increased volume.

Those who should look elsewhere include owners of non-LS engines or projects that require remote- or external-sump plumbing; this internal wet sump pump is not intended for dry-sump systems or engines with incompatible pickup geometry. Also check clearances and drive compatibility before ordering.

Pros & Cons

Pros

• Consistently reported as good value and a quality replacement for worn OEM units.
• Delivers strong idle and operating oil pressure in many installations, improving lubrication confidence.
• Cast aluminum housing offers a durable, lightweight component that fits LS-Series engines.

Cons

• A couple of customers reported mixed performance with oil flow in specific setups, so validation on a given engine is recommended.
• Country of origin is China, which may concern buyers preferring domestic manufacture.

Specifications

Our Verdict

The Engine Oil Pump is a practical, cost-effective upgrade for most GM LS-Series engines that need increased oil volume and pressure. Given its durable cast aluminum housing, included gasket, and consistent reports of improved pressure, it represents good value for street and performance builds; verify fitment and monitor flow on first run to address the occasional installation-specific issue.

Frequently Asked Questions

Will this pump fit my LS engine?
It is designed for GM LS-Series internal wet sump applications; confirm pickup and drive compatibility before purchase.

Does it come ready to install?
Yes, the pump ships with a gasket or seal included for immediate installation.

What pressure can be expected?
Customers report high pressure in many installs, often above 60 psi at idle and around 30 psi when warm, but results vary by engine setup.