Manley Titanium Exhaust Valve Kit - Small Block GM, Ford, Chrysler

If you're rebuilding the top end of a small block GM, Ford, or Chrysler engine and pushing for serious performance, especially at higher RPMs, these Manley Titanium Exhaust Valves are worth a close look. They're designed to significantly cut down on the weight of your valvetrain, which is crucial for letting your engine rev faster and more freely. This reduction in mass helps prevent valve float when you're really winding the engine out, keeping things running smoothly even under aggressive camshaft profiles and extended high-rpm use.

What sets these apart is their one-piece forged construction. This method ensures a solid, durable part with consistent grain flow, avoiding the potential weak spots you might find in other designs. Manley machines them with a lot of care in advanced CNC centers, holding very precise measurements for how they seat and seal. They use special titanium alloys that are chosen for their strength, hardness, and ability to hold up under heat and stress, balancing mechanical properties for durability and fatigue resistance at operating temperatures. The 'HT' suffix means they're made with high-temperature material, and they also feature inserted hard tips for added wear resistance.

When you're building an engine where every ounce and every RPM counts, the attention to detail here makes a difference. Each valve is put through a strict final inspection to make sure it meets Manley's high standards for quality and reliability. You'll get valves that are delivered within very tight tolerances, ensuring a consistent and precise fit in your cylinder heads. This kit includes 8 exhaust valves, each weighing in at about 79 grams, with a head diameter of 1.625 inches and a stem diameter of 0.3415 inches.