VTT S58 Cylinder Head Port Check Valve Kit - S58 3.0L

Product Details

The VTT S58 Head Port Check Valve Kit is designed to convert the factory head ports used by the OEM low-side PCV system. These ports in the cylinder head utilize engine vacuum to evacuate crankcase gases, but in the process, can allow oil to enter the intake manifold, leading to valve carbon buildup and other performance issues over time.

VTT's Billet Check Valve kit converts the head ports into a robust internal PCV system using precision-engineered check valves. These one-way valves allow vacuum to function as intended while blocking boost pressure from entering the crankcase or charge tract.

By bypassing the factory PCV valve in the valve cover, the VTT kit replaces it with an improved three-valve internal system integrated directly into the cylinder head. This design improves reliability, simplifies plumbing, and ensures consistent crankcase pressure management, critical for both stock and high-performance S58 applications. This kit does NOT require any tapping, meaning no metal to get into the engine, etc. You simply tap the check valves into place.

Key Features

• Eliminates oil draw-through into the intake manifold
• Prevents carbon buildup on intake valves
• Converts to an internal, head-integrated PCV system
• Utilizes precision-machined check valves for boost sealing
• Fully reversible — valves can be removed if needed
• No tapping is required. Easy install, by tapping the valve into place.

Prop 65 Warning

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Lifetime Replacement

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