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, these Manley Titanium Exhaust Valves are a serious consideration. The primary advantage here is weight reduction; titanium is significantly lighter than traditional steel valves, which directly translates to less stress on your valve train components. This makes them ideal for engines that will spend a lot of time at high revolutions per minute, allowing the engine to rev more freely and safely.

Manley builds these valves from a single piece of forged titanium, a process that ensures a strong, consistent grain flow throughout the component. This one-piece construction avoids potential weak points that can occur with welded designs, contributing to their durability in demanding applications. They are then precisely machined on advanced CNC equipment to very tight tolerances, ensuring they seal properly and perform consistently. Manley selects specific titanium alloys that offer a good balance of strength, hardness, and ductility at the high temperatures exhaust valves encounter, and each valve is inspected to meet strict quality standards. The 'HT' designation means they use high-temperature alloys, and they come with inserted hard tips to handle the impact from the rocker arm.

This kit includes a set of eight exhaust valves, each measuring 1.625 inches in head diameter, 0.3415 inches in stem diameter, and 5.060 inches in overall length. Each valve weighs in at a mere 75 grams, highlighting the significant weight savings you achieve with this upgrade. When building a high-performance engine, reducing reciprocating mass is key to unlocking its full potential and ensuring reliability at speed.