Oil Filter Block-Off Plate

The MOROSO Oil Filter Block-Off Plate (MOR23820) is a precision-engineered bypass adapter designed for enthusiasts and professional technicians who need reliable oil system modification across multiple engine configurations. This bolt-on aluminum component eliminates the stock oil filter location while maintaining system integrity, making it an essential choice for engine swaps, custom builds, and applications where space constraints or performance upgrades require alternative oil routing solutions.

Constructed from lightweight aluminum and finished in black anodize for superior corrosion resistance, this bypass adapter features a 12 AN male inlet that connects directly to high-pressure oil lines with a secure bolt-on mounting design. The anodized coating protects against oxidation and chemical degradation while reducing overall system weight—a critical advantage in performance and racing applications. The compact 4 x 3 x 5.1-inch profile allows seamless integration into tight engine bays without sacrificing functionality or reliability.

This block-off plate serves both street and competition builders working on LS-based engines, vintage restorations, and custom hot rods where conventional filter mounting proves impractical. Installation requires basic mechanical skill and standard hand tools, with the 12 AN connection accommodating quality aftermarket hoses and fittings. Weighing just 0.65 lbs, the MOROSO oil filter adapter minimizes parasitic mass while delivering the durability and precision fitment that serious engine builders demand for long-term reliability.