Melling High Performance Valve Spring Shims

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

471060HP

Overview:

The Melling High Performance Valve Spring Shims are precision-engineered components designed to optimize the valve spring geometry in high-output Chrysler, Dodge, Jeep, and Ram engines. These shims play a crucial role in maintaining proper valve spring tension and alignment, ensuring reliable valve train operation under demanding conditions. Ideal for enthusiasts and professional builders upgrading or maintaining 5.7L Hemi, 6.1L SRT8, 6.4L 392, and 6.2L Hellcat & Trackhawk engines, these shims help achieve consistent valve performance and durability.

Manufactured in the USA, Melling valve spring shims meet or exceed OEM specifications, providing a dependable solution for performance applications. They are essential for anyone looking to reclaim or upgrade their valve springs with confidence and precision.

Key Features:

Engineered for durability and precision, the Melling valve spring shims offer the following features:

• Constructed from high-grade chromoly steel for superior strength and wear resistance
• Thickness of 0.015 inch (0.38 mm) to provide precise valve spring preload adjustment
• Inside diameter of 0.511 inch (13.00 mm) and outside diameter of 1.259 inch (32.00 mm) for exact fitment
• Universal fit design compatible with multiple Chrysler, Dodge, Jeep, and Ram engines
• Manufactured to meet or exceed OEM standards for reliable performance
• Critical component for maintaining optimal valve spring geometry and valve train stability
• Recommended for use with new retainers when installing reclaimed or new engine valves
• Made in the USA, ensuring quality craftsmanship and material integrity

Construction & Design:

The Melling valve spring shims are crafted from premium chromoly steel, a material known for its excellent strength-to-weight ratio and resistance to fatigue. This ensures the shims maintain their shape and thickness under the high stress of valve spring compression cycles. The precise dimensions, including a 0.015-inch thickness and carefully measured inner and outer diameters, guarantee a snug and secure fit within the valve spring assembly.

Each shim is engineered without a raised center, allowing for uniform load distribution and consistent valve spring pressure. This meticulous design supports the overall valve train geometry, reducing the risk of valve float and improving engine reliability at high RPMs.

Installation & Fitment:

Installing Melling valve spring shims is straightforward for experienced mechanics and engine builders. They are designed to fit 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 from model years 2002 through 2026. Proper installation requires removing the valve springs and placing the shim between the spring and retainer to achieve the desired spring height and tension.

Melling recommends using new valve retainers when installing these shims, whether on reclaimed or new valves, to ensure optimal valve train performance and longevity. No modifications are typically necessary, making these shims a direct replacement or upgrade part.

What's Included:

• One (1) Melling High Performance Valve Spring Shim, 0.015 inch thickness

Ideal For:

This valve spring shim is ideal for automotive enthusiasts, professional engine builders, and performance tuners working on Chrysler, Dodge, Jeep, and Ram vehicles with Hemi and SRT engines. It is especially suited for those performing valve spring upgrades, rebuilds, or seeking to maintain precise valve train geometry for enhanced engine reliability and performance under high-stress conditions.

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.