Proflow LS Engine Steam Line Vent Kit - Holden Commodore LS1/LS2/LS3 4-Port Stainless (PFE662-LSKIT)

Proflow LS Engine Steam Line Vent Kit - 4-Port Stainless Steel

The Proflow PFE662-LSKIT LS water crossover kit eliminates trapped air and steam from your cylinder heads, preventing hot spots and overheating that can cause head gasket failures, lean cylinders, and pre-ignition. This premium kit connects to the vent ports on each corner of the cylinder heads and routes coolant to either the radiator or water pump for optimal cooling system performance.

Key Features

• Eliminates Hot Spots: Prevents trapped air and steam that cause overheating and head gasket failure
• Stainless Steel Hardlines: Durable construction resists corrosion and looks professional
• 4-Port Design: Connects all four cylinder head vent ports for complete air evacuation
• Complete Kit: Includes stainless hardlines, fittings, and distribution blocks
• Improved Appearance: Cleaner look than OE rigid hard lines
• Flexible Routing: Works with aftermarket intakes and accessories
• Prevents Pre-Ignition: Maintains consistent cylinder head temperatures

Engine Applications

• LS1 (5.7L) - Holden Commodore VT, VX, VY
• LS6 (5.7L) - Performance variant
• LS2 (6.0L) - Holden Commodore VE
• LS3 (6.2L) - Holden Commodore VE, VF
• L76, L77, L98 - Australian LS variants

Technical Specifications

• Ports: 4-port configuration
• Material: Stainless steel hardlines
• Includes: Hardlines, fittings, distribution blocks
• Compatibility: LS1, LS2, LS3, LS6, L76, L77, L98
• Weight: Lightweight stainless construction

Important Installation Note

This kit will NOT suit factory intake manifolds - requires 25mm of clearance under the manifold. Designed for use with aftermarket intake manifolds that provide adequate clearance.

Performance Benefits

By eliminating trapped air and steam pockets, this kit ensures consistent coolant flow through all areas of the cylinder heads, preventing hot spots that can lead to detonation, head gasket failure, and reduced engine life. Essential for high-performance LS builds and forced induction applications.

Perfect for: LS-swapped vehicles, Holden Commodore performance builds, turbocharged LS engines, supercharged applications, and any LS build using an aftermarket intake manifold.

Part number: PFE662-LSKIT | SKU: PFE662-LSKIT | Barcode: 80014566 | Australian stock ready to ship.