Melling Performance Valve Spring Kit

2009–2023 Chrysler, Dodge, Jeep & Ram 5.7L / 6.2L / 6.4L Engines

Part #: VSK461219-G4

Overview

The Melling Performance Valve Spring Kit is a precision-engineered upgrade designed to enhance valve train reliability and performance across a wide range of Chrysler, Dodge, Jeep, and Ram engines. Compatible with popular powerplants including the 5.7L Hemi, 6.2L Hellcat, and 6.4L 392 engines, this kit is ideal for enthusiasts and professionals seeking improved valve control from street driving to competitive racing.

Built to reduce valve float and maintain stability at high RPMs, the kit delivers consistent throttle response and durability under demanding conditions. Whether you are upgrading an OEM setup or assembling a race-ready engine, Melling’s valve springs provide a direct-fit solution that balances performance with long-term reliability.

Key Features

Engineered to optimize valve train operation, the Melling Performance Valve Spring Kit includes:

• High-performance single spring design with a coil bind height of 1.102 inches (28.00 mm)
• Installed spring height of 1.800 inches (45.72 mm) for precise fitment
• Open spring pressure of 348 PSI and installed pressure of 135 PSI for superior valve control
• Multiple inside diameters (0.650 in / 16.50 mm and 0.885 in / 22.47 mm) to match specific valve sizes
• Outside diameters of 1.072 in (27.22 mm) and 1.307 in (33.19 mm) for optimal spring seating
• Includes performance valve locks, seals, and retainers engineered for durability and secure retention
• Direct replacement for factory valve springs on a broad range of Chrysler, Dodge, Jeep, and Ram engines from 2009 through 2023
• Available in standard, mid-range, heavy-duty, and race-ready configurations within the Melling product line

Construction & Design

Melling valve springs are manufactured from high-quality alloys designed to withstand extreme heat, stress, and fatigue common in high-performance applications. The springs maintain tension and resist wear, ensuring consistent valve control over extended use. Complementary components such as valve locks, seals, and retainers are crafted to provide a secure fit and enhance overall durability.

The single spring design offers a reliable balance of performance and simplicity, minimizing valve train complexity while maximizing efficiency. Attention to coil bind height and spring pressures ensures optimal operation, reducing wear on valve train components and improving engine responsiveness.

Installation & Fitment

This valve spring kit is a direct replacement for factory components on numerous Chrysler, Dodge, Jeep, and Ram vehicles. Installation requires standard valve spring compressor tools and basic mechanical skills. No modifications to the cylinder head or valve train are typically necessary, making this an accessible upgrade for experienced mechanics and automotive enthusiasts.

Compatible vehicles include but are not limited to:

• 2009–2012 Chrysler 300 5.7L, 2014–2023 Chrysler 300 5.7L
• 2009–2023 Dodge Challenger 5.7L, 2015–2023 Dodge Challenger 6.2L and 6.4L
• 2009–2023 Dodge Charger 5.7L, 2015–2023 Dodge Charger 6.2L, 2012–2023 Dodge Charger 6.4L
• 2009–2023 Dodge Durango 5.7L, 2018–2023 Dodge Durango 6.4L, 2021–2023 Dodge Durango 6.2L
• 2009–2010 Dodge Ram 1500 and 2500 5.7L
• 2009–2023 Jeep Grand Cherokee 5.7L, 2018–2021 Jeep Grand Cherokee 6.2L, 2012–2021 Jeep Grand Cherokee 6.4L
• 2021–2023 Jeep Grand Cherokee L 5.7L, 2022–2023 Jeep Grand Wagoneer 6.4L
• 2021–2023 Jeep Wrangler 6.4L
• 2011–2023 Ram 1500 5.7L and 6.2L, 2019–2023 Ram 1500 Classic 5.7L
• 2014–2023 Ram 2500 and 3500 6.4L, 2011–2018 Ram 2500 and 3500 5.7L

What's Included

• High-performance valve springs matched to application specifications
• Performance valve locks for secure retention
• Durable valve seals designed to prevent leaks
• Retainers engineered for longevity and reliable spring seating
• Complete kit designed to upgrade the entire valve spring assembly

Ideal For

This Melling Performance Valve Spring Kit is perfect for automotive enthusiasts, professional racers, and engine builders who demand dependable valve train performance across a variety of applications. Whether upgrading a daily driver for improved throttle response or preparing a race engine for high RPM operation, this kit provides the strength and reliability needed to maximize engine potential and durability under stress.

Melling is an engine-parts manufacturer best known in performance circles for oil pumps, camshafts, and valvetrain/timing components. Their performance line focuses on parts that support stable oiling and durability—key foundations for high-RPM and high-load builds where lubrication and valvetrain control are critical.