Manley 11164-12 Race Series Stainless Steel Performance Valve

The Manley 11164-12 Race Series valve is engineered for serious performance applications, from aggressive street builds to 1000+ horsepower race engines. Manufactured from premium stainless steel alloy, this valve delivers exceptional durability and flow characteristics in even the most demanding environments.

Premium Construction Features:

• Race Series stainless steel alloy for superior strength and heat resistance
• Chrome-plated stem for reduced friction and extended wear life
• Swirl-polished underhead surface to optimize airflow
• Fully hardened tip for durability with aggressive valve train components
• Precision-machined combustion face for consistent sealing
• Controlled margin height for optimal thermal management
• Exact stem-to-seat concentricity for superior sealing and longevity

Performance Design:

• Pro-Flo stem design reduces diameter in fillet area for increased airflow and reduced reciprocating weight
• Optimized valve geometry to maximize flow potential
• Suitable for high-boost forced induction applications

Manley valves are the choice of professional engine builders and performance enthusiasts who demand components that can withstand extreme cylinder pressures, high RPM operation, and elevated combustion temperatures. Whether you're building a weekend warrior or a championship-winning race engine, Manley Race Series valves provide the reliability and performance you need.