GM LS Steam Vent Adapter 2pk w/3an Male Fittings

The GM LS Steam Vent Adapter 2pk w/3AN Male Fittings from EARLS is an essential component for LS engine builders and custom automotive enthusiasts managing crankcase ventilation in modified powerplants. These adapters solve a critical challenge when integrating aftermarket catch cans, custom intake manifolds, or sealed engine systems into Gen III, IV, and V LS platforms—allowing proper vapor routing without compromising engine sealing or performance.

Each adapter features industry-standard 3AN male SAE fittings, enabling seamless integration with braided hoses, catch cans, and auxiliary plumbing systems common to serious engine modifications. EARLS' precision manufacturing ensures leak-free connections and reliable performance across a wide temperature range, critical when dealing with hot engine bay environments and combustion byproducts. The compact footprint and aluminum construction keep weight minimal while maintaining durability under high-pressure cycling.

This product is ideal for LS engine swaps, turbo and supercharger builds, and any application requiring upgraded vapor management beyond factory specifications. The two-pack design covers both driver and passenger side vent locations on LS heads, eliminating the need for separate purchases when establishing a complete crankcase management system.