Manley Titanium Exhaust Valve Kit - Big Block General Motors

If you're building a high-performance Big Block General Motors engine that's going to spend a lot of time spinning at high RPMs, you'll want to consider these titanium exhaust valves from Manley Performance. The biggest advantage here is weight reduction. Less weight in the valve train means the engine can rev faster and more freely, which is crucial for serious performance builds and racing applications. These valves are designed to handle extended periods at high engine speeds, making them a solid choice when you're pushing the limits.

What sets these apart is their one-piece forged construction. This method, combined with careful grain flow management, creates a stronger, more durable valve compared to those made with welded components. Manley machines these valves with precision in advanced CNC centers, holding very tight tolerances. They use specific titanium alloys chosen for their balance of hardness, ductility, and fatigue strength at high temperatures, ensuring they hold up under demanding conditions. You can get them with standard square keeper grooves or Manley's Bead Loc system.

Because these are titanium and designed for extreme use, Manley recommends using a wear cap, like their part number 42104 or 42104TM, especially if the part number doesn't have a 'T' suffix. This helps protect the valve tip during operation. Each valve goes through a thorough final inspection to ensure it meets Manley's high standards for reliability and performance.