Oil Filter Adapter LS 13/16in-16 PH3506

The ALLSTAR PERFORMANCE Oil Filter Adapter LS 13/16in-16 PH3506 is a purpose-built adapter engineered for GM LS-series engine platforms. This precision component bridges the gap between modern oil filter thread standards and classic intake manifold ports, enabling seamless integration of high-flow filtration systems on LS powerplants used in street engines, race applications, and restomod builds.

Constructed from steel with a natural finish, the adapter features a 13/16-inch-16 male filter thread on one end and a 20mm x 1.50-inch male inlet thread on the other. This configuration allows builders to mount standard spin-on filters in locations where OEM LS heads lack traditional filter bosses, or to adapt aftermarket filter housings to factory mounting points. The compact 3.5 x 1.2 x 4.55-inch form factor minimizes packaging constraints in tight engine bays, while the steel construction provides durability under sustained heat cycling and pressure fluctuations typical of forced-induction and high-rpm applications.

Engine builders, performance shops, and LS platform enthusiasts rely on this adapter when upgrading cooling or filtration systems on fifth-generation small-blocks, sixth-generation engines, and LS variants across Chevrolet, Pontiac, and other platforms. It is essential for those seeking flexible mounting options without machining custom adapter plates or modifying factory intake manifold geometry.

ALLSTAR PERFORMANCE has established credibility within the racing and engine-building community as a source for engine accessory solutions. This adapter carries the precision tolerances expected for critical cooling and lubrication system components, making it a reliable choice for builders who demand OEM-quality fitment and thread integrity on their LS builds.