Ferrea E20039-1 Double Spring Pro CNC 10 Degree Tool Steel Valve Retainer

The Ferrea E20039-1 is a precision CNC-machined tool steel valve retainer designed for double valve spring applications with a 10-degree locking angle. This high-performance retainer is engineered to withstand the demanding conditions of racing and high-RPM applications.

Key Features:

• CNC machined from tool steel for exceptional strength and durability
• 10-degree locking angle for double spring valve configurations
• Developed using advanced FEA and CAD software with compressive load testing
• Provides superior wear characteristics and stability under extreme conditions
• Only slightly heavier than titanium retainers while offering excellent strength-to-weight ratio
• Precision tolerances ensure proper valve spring control and performance

Ferrea's tool steel retainers offer lightweight design combined with exceptional wear and strength properties, making them ideal for high-performance street and racing engines. These retainers help control valve harmonics, prevent valve float, and ensure reliable operation at elevated RPM levels. Perfect for engine builders who demand race-proven components with precise manufacturing quality.