Katech GM Gen III & IV LS CNC Ported Wet Sump Oil Pump

Katech GM Gen III & IV LS CNC Ported Wet Sump Oil Pump 

Reduced Restriction. Stable Oil Control. Built for LS Performance.

The Katech Gen III & IV LS CNC-Ported Wet Sump Oil Pump is built from a brand new GM LS G-rotor oil pump and precision CNC-machined at the oil inlet to reduce restriction and improve oil flow path efficiency.

Each pump is carefully blueprinted and inspected to verify proper internal clearances and consistent operation. The CNC porting process refines the inlet geometry to support efficient oil supply, particularly under high RPM and load conditions where maintaining oil pressure is critical.

Designed for Gen III and Gen IV LS wet sump applications, this pump is intended for high-performance street and racing engines requiring reliable lubrication and oil control.

Key Features

• Brand NEW GM LS G-rotor Oil Pump
• CNC-Ported Oil inlet
• Blueprinted and Inspected
• Designed for Gen III and Gen IV LS Wet Sump Applications
• Suitable for High-Performance Street and Race Engine Builds

Fitment

Engine Compatibility (Wet Sump Only)

Gen III LS (1997–2007) LS1, LS6, LQ4, LQ9

Gen IV LS (2005–2014) LS2, LS3, L76, L92, L99, LY6, L96

Why Choose Katech Engineering

Katech Engineering applies strict machining and inspection standards developed through decades of LS engine development. Each oil pump is CNC-ported and blueprinted to deliver consistent oil flow and pressure stability in high-performance applications. 

Katech Gen III & Gen IV LS CNC-Ported Wet Sump Oil Pump | LS6 G-Rotor | KAT-A2390

CNC-Ported LS6 Oil Pump for Improved Oil Flow and Pressure Stability

The Katech Gen III & Gen IV LS CNC-Ported Wet Sump Oil Pump is built from a brand new GM LS6 G-rotor oil pump and precision CNC-machined at the oil inlet to improve flow path efficiency and reduce restriction. Designed for Gen III and Gen IV LS wet sump applications, each pump is prepared using controlled machining, blueprinting, and inspection procedures to help deliver more consistent oil flow and pressure stability in performance engine builds.

Product Highlights

• Brand new GM LS6 G-rotor oil pump
• CNC-ported oil inlet
• Blueprinted and inspected
• Designed for Gen III and Gen IV LS wet sump applications
• Suitable for high-performance street and race engine builds

Stock vs. Katech CNC-Ported Oil Pump

A stock production oil pump is built for broad OEM use. The Katech CNC-Ported Wet Sump Oil Pump starts with a new GM LS6 pump, then receives CNC inlet porting, blueprinting, and inspection procedures intended to improve flow path efficiency and provide greater consistency from pump to pump. For performance LS builds, that added preparation can be an important advantage where oil control matters.

Engineering Process

• Starts with a brand new GM LS6 G-rotor oil pump
• CNC-porting at the oil inlet to improve the entry path into the pump
• Blueprinting and inspection procedures to verify internal consistency

Why Choose Katech Engineering

Katech Engineering applies strict machining and inspection standards developed through decades of LS engine development. Each oil pump is CNC-ported and blueprinted to deliver consistent oil flow and pressure stability in high-performance applications.

Related Katech LS Oiling Products

• Katech Gen III & IV LSX High-Capacity Wet Sump Oil Pump
• Shop All Katech Oil Pumps
• LS Oiling System Components
• LS Engine Components

Need Help Choosing the Right LS Oil Pump?

Contact the Katech sales team for fitment and product guidance.

Frequently Asked Questions