Manley 11155-1 Race Series Stainless Steel Performance Valve

The Manley 11155-1 Race Series valve is engineered for high-performance sport compact engines, utilizing premium stainless steel alloy designed to withstand extreme operating conditions. Built to Manley's exacting quality standards, this valve delivers superior flow characteristics and durability for both street and competition applications.

Premium Construction Features:

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

Performance Design:

• Pro-Flo stem design (on intake valves) reduces diameter in fillet area for increased flow
• Reduced valve weight improves valve train dynamics and allows higher RPM operation
• Engineered for applications from mild street performance to 1000+ horsepower race builds

Manley Race Series valves are the preferred choice for demanding applications including turbocharged and supercharged sport compact engines, drag racing, road racing, and drifting competition. Each valve undergoes rigorous quality control to ensure consistent performance and reliability in the most severe racing environments.