GM LS Steam Vent #4 Adapter Fittings (pair)

The GM LS Steam Vent #4 Adapter Fittings (pair) by Earl's are designed for LS-powered vehicles that require effective crankcase ventilation solutions. These fittings are particularly useful for those making significant performance modifications to their engines. They facilitate the routing of positive crankcase ventilation (PCV), allowing gases to escape safely while maintaining optimal air-to-fuel ratios.

Constructed from precision-engineered aluminum, these adapter fittings are built to withstand extreme conditions. The #4 designation indicates compatibility with standard LS PCV hose assemblies and catch-can systems. Their compact design (2.15 x 2 x 3.8 inches) allows for flexible installation in tight engine bays, while the lightweight construction (0.18 lbs per pair) helps minimize additional weight.

Engine builders and LS swap enthusiasts will find these fittings beneficial when integrating modern PCV systems into modified powerplants. They are compatible with various setups, including catch-cans and factory-style ventilation configurations. Proper installation of the GM LS Steam Vent #4 Adapter Fittings is essential for reliable operation in performance applications.