Manley Titanium Series Chevrolet Big Block Exhaust Valve Kit - Pontiac Pro Stock - Dart Big Chief

These Manley Titanium Series exhaust valves are forged from exceptional titanium alloys, offering a remarkable balance of hardness, ductility, and fatigue strength specifically for high-temperature engine environments. They are meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal performance. The one-piece forged construction with grain flow ensures durability and minimizes potential weak points, making them a strong choice for demanding applications.

By significantly reducing valve train weight, these valves are ideal for high-rpm and extended high-rpm operation, allowing your engine to safely reach higher speeds and work with aggressive camshaft profiles. Manley utilizes the finest titanium alloys to achieve the necessary mechanical properties for reliability under stress. Each valve undergoes a stringent final inspection process to ensure uncompromising quality and performance.

This kit includes eight exhaust valves, each with a 1.900-inch head diameter, a 0.3415-inch stem diameter, and an overall length of 6.450 inches. It's important to note that all part numbers without a "T" suffix, like this one, do not include a hard tip. Therefore, tip protection is required; Manley wear cap P/N 42104 or 42104TM is recommended.