Melling High Performance Valve Spring Kit: Chrysler / Dodge / Jeep / Ram 5.7L Hemi
Melling High Performance Valve Spring Kit
2002–2026 Chrysler, Dodge, Jeep & Ram 5.7L Hemi
46654-16
Overview:
The Melling High Performance Valve Spring Kit is engineered specifically for Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 5.7L Hemi engine, covering model years from 2002 through 2026. Designed to meet the demands of street driving up to competitive circle track and drag racing environments, this valve spring kit offers enhanced durability and performance over stock components. Whether you are upgrading your engine for improved throttle response, higher RPM capability, or increased reliability under heavy loads, Melling’s valve springs provide a reliable solution tailored to your application.
Built to OEM specifications with performance enhancements, this kit is ideal for enthusiasts and professional builders seeking consistent valve control and reduced valve float at high engine speeds. The kit includes all necessary components to ensure a complete and precise installation, making it a trusted choice for 5.7L Hemi owners looking to maximize their engine’s potential.
Key Features:
Designed with advanced engineering and quality materials, the Melling valve spring kit delivers superior performance and durability. Key features include:
- Beehive spring design for reduced mass and improved valve train stability
- 1.230 inch open height with 348 PSI open pressure for high RPM capability
- 1.800 inch installed height with 130 PSI installed pressure ensuring optimal valve seating
- Set of 16 single springs engineered for consistent performance across all valves
- Performance valve locks, seals, and retainers included to enhance durability and maintain valve train integrity
- Coil bind height of 1.141 inches to prevent over-compression and spring failure
- Precision inside diameter measurements (0.645 in to 0.825 in) for exact fitment
- Outside diameter ranging from 1.019 in to 1.199 in for compatibility with OEM valve train components
- Grade type: Performance, optimized for street and race applications
Construction & Design:
Melling valve springs are manufactured using high-grade materials and advanced spring technology to withstand the rigors of high-performance use. The beehive design reduces the overall mass of the spring, which decreases valve train inertia and allows for quicker valve response. This design also improves coil harmonics, reducing the risk of valve float at elevated RPMs.
The springs are precision wound to exact dimensions, ensuring consistent installed and open heights, which translates to reliable valve control and longer service life. Included valve locks, seals, and retainers are engineered to complement the springs, providing a complete valve train upgrade that maintains OEM fitment and function.
Installation & Fitment:
This valve spring kit is a direct fit replacement for a wide range of Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 5.7L Hemi engine. Compatible models include Chrysler 300 (2005–2024), Dodge Ram (2002–2026), Dodge Durango (2004–2026), Dodge Charger (2006–2023), Dodge Dakota (2005–2011), Dodge Magnum (2005–2008), Dodge Challenger (2008–2023), Jeep Commander (2005–2010), Jeep Grand Cherokee (2005–2026), Jeep Wagoneer (2022–2026), and Ram 1500/2500/3500 (2011–2026).
Installation requires standard valve spring compressor tools and mechanical knowledge of valve train components. No modifications to the cylinder head or valve train are typically necessary, making this kit suitable for professional mechanics and experienced enthusiasts alike.
What's Included:
- Set of 16 high performance beehive valve springs (Melling part #466544)
- Performance valve locks
- Valve seals designed for durability and leak prevention
- Retainers engineered for enhanced spring retention and longevity
- Complete spring kit packaging for easy identification and installation
Ideal For:
This valve spring kit is ideal for performance enthusiasts, street drivers, and racers who demand reliable valve control and enhanced engine durability. It suits those upgrading their 5.7L Hemi engines for higher RPM operation, improved throttle response, or increased valve train stability under aggressive driving conditions. Whether you are restoring a classic Dodge Ram or building a race-ready Jeep Grand Cherokee, Melling’s valve springs provide a dependable foundation for your engine’s valvetrain performance.

Description
Melling High Performance Valve Spring Kit
2002–2026 Chrysler, Dodge, Jeep & Ram 5.7L Hemi
46654-16
Overview:
The Melling High Performance Valve Spring Kit is engineered specifically for Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 5.7L Hemi engine, covering model years from 2002 through 2026. Designed to meet the demands of street driving up to competitive circle track and drag racing environments, this valve spring kit offers enhanced durability and performance over stock components. Whether you are upgrading your engine for improved throttle response, higher RPM capability, or increased reliability under heavy loads, Melling’s valve springs provide a reliable solution tailored to your application.
Built to OEM specifications with performance enhancements, this kit is ideal for enthusiasts and professional builders seeking consistent valve control and reduced valve float at high engine speeds. The kit includes all necessary components to ensure a complete and precise installation, making it a trusted choice for 5.7L Hemi owners looking to maximize their engine’s potential.
Key Features:
Designed with advanced engineering and quality materials, the Melling valve spring kit delivers superior performance and durability. Key features include:
- Beehive spring design for reduced mass and improved valve train stability
- 1.230 inch open height with 348 PSI open pressure for high RPM capability
- 1.800 inch installed height with 130 PSI installed pressure ensuring optimal valve seating
- Set of 16 single springs engineered for consistent performance across all valves
- Performance valve locks, seals, and retainers included to enhance durability and maintain valve train integrity
- Coil bind height of 1.141 inches to prevent over-compression and spring failure
- Precision inside diameter measurements (0.645 in to 0.825 in) for exact fitment
- Outside diameter ranging from 1.019 in to 1.199 in for compatibility with OEM valve train components
- Grade type: Performance, optimized for street and race applications
Construction & Design:
Melling valve springs are manufactured using high-grade materials and advanced spring technology to withstand the rigors of high-performance use. The beehive design reduces the overall mass of the spring, which decreases valve train inertia and allows for quicker valve response. This design also improves coil harmonics, reducing the risk of valve float at elevated RPMs.
The springs are precision wound to exact dimensions, ensuring consistent installed and open heights, which translates to reliable valve control and longer service life. Included valve locks, seals, and retainers are engineered to complement the springs, providing a complete valve train upgrade that maintains OEM fitment and function.
Installation & Fitment:
This valve spring kit is a direct fit replacement for a wide range of Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 5.7L Hemi engine. Compatible models include Chrysler 300 (2005–2024), Dodge Ram (2002–2026), Dodge Durango (2004–2026), Dodge Charger (2006–2023), Dodge Dakota (2005–2011), Dodge Magnum (2005–2008), Dodge Challenger (2008–2023), Jeep Commander (2005–2010), Jeep Grand Cherokee (2005–2026), Jeep Wagoneer (2022–2026), and Ram 1500/2500/3500 (2011–2026).
Installation requires standard valve spring compressor tools and mechanical knowledge of valve train components. No modifications to the cylinder head or valve train are typically necessary, making this kit suitable for professional mechanics and experienced enthusiasts alike.
What's Included:
- Set of 16 high performance beehive valve springs (Melling part #466544)
- Performance valve locks
- Valve seals designed for durability and leak prevention
- Retainers engineered for enhanced spring retention and longevity
- Complete spring kit packaging for easy identification and installation
Ideal For:
This valve spring kit is ideal for performance enthusiasts, street drivers, and racers who demand reliable valve control and enhanced engine durability. It suits those upgrading their 5.7L Hemi engines for higher RPM operation, improved throttle response, or increased valve train stability under aggressive driving conditions. Whether you are restoring a classic Dodge Ram or building a race-ready Jeep Grand Cherokee, Melling’s valve springs provide a dependable foundation for your engine’s valvetrain performance.






















