Upgrade your GM LS engine’s venting system with Earl’s Adjustable LS Steam Tube Vent Adapter Kit, designed to replace the rigid factory vent tubes for improved fitment with aftermarket intakes and accessories. These O-ring sealed adapters convert to -3 or -4 AN plumbing, providing a flexible, low-profile solution for performance LS engines. Engineered for both appearance and functionality, they combine professional styling with straightforward installation.
The kit is available in six configurations, including a dual outlet option that eliminates the need for a T-adapter. Ideal for front-only or front/rear steam tube setups, these adapters ensure proper venting while maintaining a clean and professional engine bay appearance.
Features:
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Adjustable design for optimal routing and low-profile installation
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Converts to -3 or -4 AN plumbing for compatibility with aftermarket setups
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Professional anodized black finish for durability and appearance
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Can be used for front-only or front/rear applications
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Installation-friendly design for easy fitment
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Available in multiple kit options including dual outlet configuration