Oil Galley Diverter GM LS Engines

The MOROSO Oil Galley Diverter for GM LS engines is a press-in aluminum component designed to redirect oil flow within the engine block during high-performance operation. This oil galley plug assembly features an O-ring seal and natural aluminum construction, engineered to manage oil distribution in LS-series platforms where aftermarket cylinder head or intake modifications require flow redirection. The diverter is essential for builders implementing custom oiling solutions in turbocharged, supercharged, or extensively modified LS engines.

Weighing just 0.06 lbs with compact dimensions of 3.8 x 1 x 4.9 inches, this aluminum diverter installs directly into the factory gallery port. The O-ring seal ensures leak-free operation under pressure, critical in high-boost or high-RPM applications where oil control becomes performance-limiting. MOROSO manufactures this component to OEM tolerance standards, ensuring proper fitment and reliable pressure sealing. The aluminum material offers adequate strength for LS platform pressures while remaining lightweight—a consideration in race engine builds where every gram affects rotating mass and thermal management.

This component addresses a specific need: LS engine builders upgrading to high-flow cylinder heads, wet-sump turbo kits, or complex oiling manifolds often require blocking or redirecting stock gallery passages. The diverter allows technicians to seal off unused passages while channeling oil to modified coolers, filter relocation systems, or custom turbo feed lines. It's particularly common in street/strip builds, engine swap applications, and competition platforms where factory oil routing conflicts with modern performance hardware.

GM LS engines—the foundational architecture in countless hot rods, drag cars, and engine swaps—benefit from modular oiling solutions that accommodate diverse cooling and induction configurations. MOROSO's catalog covers the full spectrum of LS customization, and this diverter plug is a precision detail that separates proper builds from problematic ones. Whether you're installing a twin-turbo kit, relocating your cooler, or running a dedicated oil filtration system, this component ensures the stock gallery doesn't leak or interfere.