Melling Performance Valve Spring Kit

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

Part #: VSK461218-G4

Overview

The Melling Performance Valve Spring Kit is engineered to deliver enhanced valve control and durability for a wide range of Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L Hemi, 6.1L SRT8, 6.2L Hellcat, 6.4L 392, and Trackhawk engines. Designed for enthusiasts and professional engine builders alike, this kit provides consistent spring pressure and improved valvetrain stability, making it ideal for applications from daily driving to competitive racing.

Whether upgrading from OEM components or building a high-performance engine, Melling valve springs offer the strength and precision necessary to maximize engine efficiency and power output. The kit supports hydraulic roller camshaft configurations and fits numerous models from 2009 through 2023, ensuring broad compatibility and reliable performance.

Key Features

Built to meet the demands of both street and track use, the Melling valve spring kit includes a range of features designed to enhance valvetrain performance and longevity:

• Designed specifically for hydraulic roller camshafts with a single spring configuration
• Installed spring height of 1.800 inches (45.72 mm) and coil bind height of 1.110 inches (28.19 mm)
• High installed pressure of 135 PSI and open pressure of 330 PSI for superior valve control at high RPM
• Precise fitment with an inside diameter of 0.650 inches (16.51 mm) and outside diameter of 1.292 inches (32.82 mm)
• Constructed from premium steel alloys for strength and fatigue resistance under rigorous conditions
• Includes performance valve locks, seals, and retainers engineered for increased durability
• Available in standard, mid-range, heavy-duty, and race-ready spring pressures to suit various performance needs
• Optional beehive spring design reduces valvetrain mass for improved throttle response and reduced valve float

Construction & Design

Melling valve springs are crafted from high-grade steel alloys selected for their exceptional strength and resistance to fatigue. Each spring undergoes precision winding and heat treatment processes to ensure consistent spring rates and long-lasting durability. The single spring design balances robustness with reduced valvetrain weight, promoting faster valve response and minimizing the risk of coil bind during high RPM operation.

The included valve locks, seals, and retainers are engineered to complement the springs perfectly, enhancing overall valvetrain stability and sealing performance even under demanding driving conditions.

Installation & Fitment

This valve spring kit is designed for direct replacement on a wide range of Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L Hemi, 6.1L SRT8, 6.2L Hellcat, 6.4L 392, and Trackhawk engines. Installation follows standard valvetrain disassembly and reassembly procedures with no major modifications required. Professional installation is recommended to ensure proper spring seating and valve train geometry for optimal performance and reliability.

The kit supports hydraulic roller camshaft setups and is suitable for both OEM replacements and performance upgrades, making it a versatile choice for engine builders and enthusiasts.

What's Included

• High-performance valve springs (single spring design)
• Performance valve locks
• Valve seals
• Durable retainers engineered for enhanced performance

Ideal For

This Melling Performance Valve Spring Kit is ideal for automotive enthusiasts, professional racers, and engine builders seeking a reliable and durable upgrade for Chrysler, Dodge, Jeep, and Ram Hemi engines. It is perfectly suited for applications ranging from daily street driving to competitive drag racing and circle track events, providing improved valve control, reduced valve float, and enhanced engine responsiveness.

Fitment Summary

This kit fits the following vehicles:

• 2009–2012 Chrysler 300 5.7L
• 2014–2023 Chrysler 300 5.7L
• 2009–2023 Dodge Challenger 5.7L, 6.2L, 6.4L
• 2009–2023 Dodge Charger 5.7L, 6.2L, 6.4L
• 2009–2010 Dodge Ram 1500 & 2500 5.7L
• 2011–2023 Dodge Durango 5.7L, 6.2L, 6.4L
• 2009–2010 Jeep Commander 5.7L
• 2009–2023 Jeep Grand Cherokee 5.7L, 6.2L, 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, 6.2L
• 2019–2023 Ram 1500 Classic 5.7L
• 2011–2018 Ram 2500 & 3500 5.7L
• 2014–2023 Ram 2500 & 3500 6.4L

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.