🔧 Product Description

The 247 Steam Bleed Vents are designed to improve cooling efficiency and reduce temperature inconsistencies across LS-series engines by allowing trapped air and steam to escape from the rear cylinder head ports.

By incorporating a convenient AN fitting design, these vents help eliminate air pockets that can cause hotspots, uneven cylinder temperatures, and in extreme cases, engine failure.

This makes them an essential upgrade for performance, race, and high-load street applications where cooling stability is critical.

⚙️ Key Features

• CNC-machined AN-style steam bleed fittings
• Designed to utilise rear LS cylinder head ports
• Helps remove trapped air and steam from cooling system
• Reduces risk of hotspots and uneven cylinder temperatures
• Improves overall cooling system efficiency
• Supplied with O-ring and mounting bolt
• Available in black or silver anodised finish

🏁 Performance Benefits

⚡ Improved cooling system stability
🌡️ Reduced cylinder head temperature variance
🔒 Lower risk of overheating and engine damage
🚀 Enhanced reliability under high-performance conditions
🛠️ More efficient coolant circulation through LS heads

🔩 Construction & Engineering

• Precision CNC-machined aluminium body
• AN fitting interface for clean, secure plumbing
• High-quality anodised finish for corrosion resistance
• O-ring sealed design to prevent leaks
• Built for durability in high-temperature environments

🚗 Vehicle Applications

Recommended for all performance-based LS engines, including:

• LS1 / LS2 / LS3 / LS4 / LS6 / LS7 / LS9
• LSA / LSX
• LQ4 / LQ9
• LM7
• 5.3L / 5.7L / 6.0L variants

💡 Why Choose 247 Steam Bleed Vents?

If you need:

• More consistent engine cooling
• Reduced risk of overheating under load
• A clean AN-style plumbing solution
• Better reliability for performance LS builds

👉 The 247 Steam Bleed Vents are a simple but critical upgrade for any serious LS performance setup.

🏆 Perfect For

• LS engine performance builds
• Turbocharged and supercharged applications
• Track and motorsport vehicles
• High-performance street cars
• Engine reliability upgrades