Melling Perf Valve Spring Kit: Fits Chrysler / Dodge / Jeep / Ram (02-26)

Melling Performance Valve Spring Kit

2002–2026 Chrysler, Dodge, Jeep & Ram 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L Hellcat & Trackhawk Engines

VSK461218-G4

Overview:

The Melling Performance Valve Spring Kit is engineered to enhance valve control and durability across a broad range of Chrysler, Dodge, Jeep, and Ram engines, including the 5.7L Hemi, 6.1L SRT8, 6.4L 392, and 6.2L Hellcat & Trackhawk powerplants. Designed for enthusiasts seeking reliable performance from street driving to competitive racing, this kit delivers consistent valve spring pressure and improved valvetrain stability. Whether upgrading an OEM setup or building a high-performance engine, Melling’s valve springs provide the strength and precision needed to maximize engine efficiency and power output.

Compatible with numerous models from 2002 through 2026, this valve spring kit supports hydraulic roller camshafts and is ideal for applications demanding enhanced spring pressure and durability without sacrificing drivability.

Key Features:

Built to meet the demands of both street and track use, the Melling valve spring kit offers a range of features that ensure superior performance and longevity:

• Designed for hydraulic roller camshafts with a single spring configuration
• Installed spring height of 1.800 inches (45.72 mm) with a coil bind height of 1.110 inches (28.19 mm)
• High installed pressure of 135 PSI and open pressure of 330 PSI for enhanced valve control at high RPM
• Inside diameter of 0.650 inches (16.51 mm) and outside diameter of 1.292 inches (32.82 mm) for precise fitment
• Constructed from premium materials to withstand rigorous operating 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 levels
• Beehive spring design option available for reduced valvetrain mass and improved response

Construction & Design:

Melling valve springs are manufactured using high-grade steel alloys selected for their strength and fatigue resistance. The springs undergo precision winding and heat treatment processes to ensure consistent spring rates and long service life. The single spring design balances durability with reduced valvetrain weight, promoting quicker valve response and minimizing the risk of coil bind. Included valve locks, seals, and retainers are crafted to complement the springs, enhancing overall valvetrain stability and sealing performance under demanding conditions.

Installation & Fitment:

This valve spring kit is designed for direct fitment on a wide range of Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L Hemi, 6.1L SRT8, 6.4L 392, and 6.2L Hellcat & Trackhawk engines. Installation requires standard valvetrain disassembly and reassembly procedures, with no major modifications necessary. Professional installation is recommended to ensure proper spring seat and valve train geometry. The kit supports hydraulic roller camshaft configurations and is suitable for both OEM replacements and performance upgrades.

What's Included:

• High-performance valve springs (single spring design)
• Performance valve locks
• Valve seals
• Retainers engineered for durability and performance

Ideal For:

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