Manley 11615-8 Stainless Steel Performance Intake Valve - 30mm

The Manley 11615-8 is a high-performance stainless steel intake valve engineered for demanding automotive applications. Featuring a 30mm head diameter and .2740" stem diameter, this valve delivers exceptional flow characteristics and durability for race and high-performance street engines.

Key Specifications:

• Head Diameter: 30mm
• Stem Diameter: .2740"
• Overall Length: 4.587"
• Tip Length: .425"
• Underhead Angle/Radius: 15° x 1/2"
• Margin: .050"
• Seat Width: .080"
• Weight: 53 grams
• Installed Height: Stock

Performance Features:

• Manufactured from premium Race Series stainless steel alloy for superior strength and heat resistance
• Chrome-plated stems provide exceptional wear resistance and reduced friction
• Swirl-polished underhead design maximizes airflow efficiency
• Fully hardened valve tips ensure long-term durability with aggressive valve train components
• Completely machined combustion face for precise sealing and consistent performance
• Pro-Flo design with reduced stem diameter in fillet area increases airflow while reducing valve weight
• Precision-controlled margin heights and exact stem-to-seat concentricity

Backed by over 40 years of valvetrain manufacturing expertise, Manley Performance valves are engineered to outflow and outperform in the most severe racing environments. Suitable for applications ranging from mild street performance builds to extreme 1000+ horsepower race engines competing at the highest levels of motorsport.