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

When you're building a high-performance engine that needs to spin up fast and hold high RPMs, the weight of your valvetrain components really matters. This kit from Manley Performance includes eight titanium exhaust valves, specifically designed to cut down on mass. Titanium is significantly lighter than traditional steel, which helps reduce the load on your valve springs and camshaft, allowing for quicker response and the ability to safely reach higher engine speeds.

These aren't just lightweight; they're built for serious work. Manley uses a one-piece forged construction with carefully controlled grain flow, making them strong and durable, especially compared to valves that are welded together. They're machined to very precise tolerances on advanced CNC equipment, ensuring they seal well and perform consistently. The titanium alloys chosen are selected for their balance of hardness, ductility, and fatigue strength, even at high temperatures – the 'HT' suffix on these valves indicates they use high-temperature material, and they also feature inserted hard tips for added durability where the rocker arm makes contact.

This kit is a set of eight exhaust valves, each measuring 1.625 inches in head diameter, with a 0.3415-inch stem diameter and an overall length of 5.360 inches. Each valve weighs in at a mere 78 grams. Because these are specialized performance components, it's always a good idea to consult your engine builder or refer to Manley's installation guidelines to ensure proper setup with your specific camshaft and cylinder head combination.