Ferrea E20039 Double Spring Pro CNC 10 Degree Tool Steel Valve Retainer Set (16 Pieces)

The Ferrea E20039 is a high-performance valve spring retainer set designed for demanding racing and high-RPM applications. This set includes 16 precision-machined tool steel retainers featuring a 10-degree valve angle configuration, engineered specifically for use with double valve spring setups.

Key Features:

• Pro CNC-machined construction from premium tool steel for maximum strength and durability
• 10-degree valve angle design optimized for performance cylinder heads
• Compatible with double valve spring configurations
• Developed using advanced FEA and CAD software for optimal stress distribution
• Validated through compressive load testing to ensure material strength under extreme conditions

Ferrea Racing Components has been manufacturing race-proven valvetrain components for over 50 years, with technology derived from Formula 1, Indy Car, NASCAR, Sprint Car, and Drag racing programs. These retainers are engineered to handle high spring pressures and extreme RPM ranges, making them ideal for serious racing applications where reliability and performance are critical.