Manley 11775-8 Race Series Exhaust Valve Big Block Chevy 1.900" Head

The Manley 11775-8 Race Series exhaust valve is engineered for high-performance Big Block Chevrolet applications. Designed for bracket racing, oval track competition, and aggressive street engines, this valve delivers the quality and precision that Manley Performance is known for worldwide.

Key Specifications:

• Head diameter: 1.900 inches
• Stem diameter: 0.3415 inches
• Overall length: 5.522 inches (.100" longer than stock)
• Material: XH-426 stainless steel construction
• Chrome stem with hardened valve tip
• Swirl polished and fully machined

Manley Race Series valves feature premium stainless steel alloy construction with precision machining throughout. The swirl polishing process ensures a smooth surface finish that promotes optimal flow characteristics, while the hardened tips provide exceptional durability under demanding racing conditions. Each valve is manufactured to exacting tolerances to ensure consistent performance across the entire set.

This valve kit includes 8 valves, providing a complete exhaust valve set for one V8 engine. The .100" extended length compared to stock height makes these valves ideal for performance cylinder heads and high-lift camshaft applications.