Billet Oil Filter Block Off Plate -10 Fitting

The Barnes billet oil filter block off plate -10 fitting is a precision-engineered adapter designed for builders and performance enthusiasts who need to relocate or eliminate factory oil filter mounting on small block Chevy engines. This is a bolt-on solution commonly used in custom fabrication, engine swaps, and high-performance builds where factory filter housings interfere with headers, turbo installations, or custom intake manifolds. Whether you're running a competition engine, integrating remote oil filtration, or simply need a clean blockoff point, this adapter provides a professional alternative to welded bungs or temporary plugs.

Machined from aluminum and finished in black anodized coating, the billet oil filter block off plate offers corrosion resistance and durability in engine bay environments. The -10 AN male inlet fitting (10 AN corresponds to 5/8-18 thread pitch) provides a standardized connection point compatible with braided hose, remote filter adapters, or sandwich-style block adapters. The compact footprint—measuring 4.55 by 1.65 by 4.9 inches—ensures clearance in tight engine compartments while the bolt-on design eliminates welding and allows for quick installation or removal without permanent modification to your block.

This adapter is ideal for small block Chevy platforms including LS-series swaps into classic vehicles, turbo and supercharged builds, and race engine configurations where space optimization is critical. Installation requires removal of the factory oil filter housing and mounting the plate using existing bolt holes; most builds integrate this with AN-line adapters for remote oil coolers or extended filtration systems. The lightweight design (0.5 lbs) minimizes unsprung weight, making it popular with track-focused builders and street performance applications alike.