Ferrea Pro CNC Steel Beehive Spring and Retainer Set

2005–Present Chrysler / Dodge HEMI 5.7L / 6.1L Engines

E10031

Overview:

The Ferrea Pro CNC Steel Beehive Spring and Retainer Set is engineered specifically for Chrysler and Dodge vehicles equipped with the iconic HEMI 5.7L and 6.1L engines. This set includes 16 high-performance valve springs and precision-machined 7-degree steel retainers designed to enhance valvetrain stability and durability under demanding conditions. Ideal for enthusiasts and professionals seeking reliable valve control during aggressive driving, track use, or engine builds, this kit delivers consistent spring pressure and improved valve train response.

Whether upgrading a stock engine or building a high-performance HEMI, these springs and retainers provide the necessary strength and precision to support higher RPMs and increased valve lift without compromising reliability.

Key Features:

Ferrea’s Pro CNC Steel Beehive Spring and Retainer Set offers advanced engineering and quality materials to ensure optimal performance and longevity:

• Designed specifically for Chrysler/Dodge HEMI 5.7L and 6.1L engines
• Beehive spring design reduces valvetrain mass for improved RPM capability
• 7-degree CNC-machined steel retainers for precise fit and enhanced durability
• Set includes 16 springs and retainers to cover all valves
• High-quality steel construction resists fatigue and heat-related wear
• Compatible with stock and aftermarket valvetrain components
• Improves valve control during high RPM and aggressive driving conditions
• Manufactured to strict tolerances for consistent spring pressure

Construction & Design:

The valve springs feature a beehive shape, which reduces the overall mass of the spring while maintaining the necessary spring force. This design minimizes valvetrain inertia, allowing for quicker valve response and higher RPM limits. The springs are crafted from premium steel alloys that provide excellent fatigue resistance and maintain their performance characteristics even under extreme heat and stress.

The 7-degree retainers are CNC-machined from high-grade steel, ensuring a precise fit and superior strength compared to stamped or cast alternatives. This precision machining enhances the durability of the retainer, reducing the risk of failure during high-performance operation.

Installation & Fitment:

This set is a direct fit replacement for Chrysler and Dodge HEMI 5.7L and 6.1L engines, making installation straightforward for experienced mechanics and professional engine builders. No modifications to the cylinder head or valvetrain components are typically required. Proper installation tools and procedures should be followed to ensure correct spring preload and retainer seating, which are critical for reliable operation.

What's Included:

• 16 Ferrea Pro CNC Steel Beehive Valve Springs
• 16 CNC-machined 7-degree Steel Retainers

Ideal For:

This spring and retainer set is ideal for performance enthusiasts, engine builders, and racers who demand reliable valve control in Chrysler and Dodge HEMI 5.7L and 6.1L engines. It suits applications ranging from mild performance upgrades to high-RPM racing builds, providing enhanced valvetrain stability and durability.

Ferrea manufactures racing engine valves and valvetrain components developed with input from high-level motorsport and engine builders. Known for advanced materials and precise manufacturing, Ferrea parts are commonly chosen for high-RPM, high-boost, and endurance-focused builds where valvetrain stability and reliability are critical.