LS Steam Vent Adapters 3an 2pk

The LS Steam Vent Adapters 3AN 2pk by EARLS are essential components for modern LS engine builders and performance enthusiasts managing crankcase ventilation systems. These adapters address the challenge of directing pressurized blow-by gases safely away from the engine block, ensuring reliability in high-horsepower builds. They are particularly useful for those fabricating custom intake manifolds or upgrading existing PCV systems.

Each adapter features a 3AN male port connection, which is the industry standard for high-flow hose fittings in motorsports applications. The construction is designed to withstand boost pressure cycles and thermal cycling, preventing weeping or port leakage. The 3AN sizing allows compatibility with braided stainless steel or PTFE hose, facilitating clean and organized valve cover vent lines.

LS engine platforms, specifically LS1, LS3, LS7, and LSA variants, benefit significantly from these aftermarket vent adapters when paired with upgraded valve covers or custom fabrication work. Installation is straightforward, requiring only basic hand tools and compatibility with existing hose and manifold ports. This makes them an excellent choice for enhancing crankcase ventilation in performance applications.