Home » AN4 Stainless Steel Coolant Crossover Steam Vent Kit For LS Engines

AN4 Stainless Steel Coolant Crossover Steam Vent Kit For LS Engines

SKU: 1005010382155105-full kits
Color
€78,92
-37% €126,26 €78,92

Traditional coolant crossover setups often struggle with restricted airflow and tight clearance beneath intake manifolds, causing localized overheating and inconsistent pressure relief. This AN4 stainless steel LS coolant crossover steam vent kit resolves those bottlenecks by providing a direct, organized path for trapped steam and air. Constructed with heavy-duty stainless steel AN4 tubing and precision-threaded aluminum adapters, it mounts securely to the front cylinder head while maintaining proper radiator cap function and preventing vapor lock in high-output builds.

Benefits & Practical Tips

  • Pre-engineered four-port manifolds eliminate guesswork during routing, saving hours of custom fabrication during LS engine swaps.
  • Tapered pipe threads create a tighter mechanical seal than straight cuts, significantly reducing the risk of slow coolant weeps at connection points.
  • Always torque fittings to manufacturer recommendations rather than over-compressing them, and consider wrapping the stainless lines with silicone braided jackets if they run close to exhaust headers.

Technical Specifications

  • Line Material: Stainless Steel
  • Fitting Material: Aluminum Alloy
  • Connection Type: AN4 Tapered Thread
  • Engine Compatibility: LS1, LS2, LS3, LS6, LS7, LS9, LSX Series
  • System Weight: 0.5 kg
  • Country of Origin: China

Package Includes

  • 5x Center Manifold Ports
  • 1x Corner Manifold Port
  • 4x Hose Couplers
  • 9x Hose End Fittings
  • 4x Hose Spike Clips

Installation Warning: Never attempt to disconnect hoses or remove fittings while the cooling system is warm. Residual heat and pressure can cause severe thermal burns, and waiting for complete ambient temperatures ensures safe handling and accurate pressure testing during initial fills.

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