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 the limits with high-RPM operation, Manley's Titanium Exhaust Valve Kit is a serious consideration. These valves are crafted from exceptional titanium alloys, chosen specifically for their balance of strength, hardness, and ductility at high temperatures. The primary advantage here is significant weight reduction in the valve train, which directly translates to improved engine efficiency and the ability to safely achieve higher engine speeds. This is crucial when you're running aggressive camshaft profiles or spending extended time in the upper RPM range.

Manley builds these valves using a one-piece forged construction process that incorporates grain flow. This method ensures maximum durability and eliminates potential weak points that can arise from head-welded designs. Each valve is then meticulously machined in advanced CNC turning centers and valve stem grinders, holding very tight tolerances. This precision machining is key to ensuring optimal valve performance and sealing. The titanium alloys used are selected for their specific mechanical properties, including fatigue strength at elevated temperatures, making them well-suited for demanding applications. The 'HT' suffix on these valves indicates they are made from high-temperature material, and they also feature inserted hard tips for added durability where the rocker arm makes contact.

This kit includes a set of 8 exhaust valves, each measuring 1.625 inches in head diameter, 0.3415 inches in stem diameter, and 5.560 inches in overall length, weighing in at a mere 80 grams each. Manley's commitment to quality is evident in their rigorous final inspection process, ensuring that each valve meets uncompromising standards for performance and reliability. When building a high-performance engine, attention to every component matters, and these titanium valves offer a notable advantage in reducing reciprocating mass.