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

476052HP

Overview:

The Melling High Performance Valve Spring Shim is a precision-engineered component designed to optimize the valve spring system in a variety of Chrysler, Dodge, Jeep, and Ram engines, including the 5.7L Hemi, 6.1L SRT8, 6.4L 392, and 6.2L Hellcat & Trackhawk variants. This shim plays a crucial role in maintaining proper valve spring geometry, ensuring consistent valve train performance and longevity under demanding conditions.

Ideal for enthusiasts and professional builders seeking reliable, OEM-quality parts, this valve spring shim helps maintain optimal valve spring pressure and alignment, which is essential for high-performance and heavy-duty applications. Manufactured in the USA, it meets or exceeds original equipment specifications for fit and durability.

Key Features:

Engineered for durability and precision, the Melling valve spring shim offers the following features:

• Constructed from high-grade chromoly steel for strength and wear resistance
• Thickness of 0.050 inches (1.52 mm) to provide precise valve spring spacing
• Inside diameter of 0.511 inches (13.00 mm) ensuring a secure fit on valve stems
• Outside diameter of 1.259 inches (32.00 mm) for compatibility with OEM valve spring retainers
• Flat design without a raised center for consistent spring pressure distribution
• Universal fitment across multiple engine models within the Chrysler, Dodge, Jeep, and Ram lineup
• Manufactured to meet or exceed OEM standards for reliable performance
• Made in the USA, assuring quality control and material integrity

Construction & Design:

The valve spring shim is crafted from premium chromoly steel, a material known for its excellent strength-to-weight ratio and resistance to fatigue. This ensures the shim maintains its shape and thickness even under the high stress and heat conditions typical of performance engines. The precise dimensions and flat profile allow for accurate valve spring geometry, which is critical for maintaining valve timing and preventing premature wear.

Melling’s commitment to quality manufacturing processes guarantees that each shim fits perfectly within the valve train assembly, providing consistent performance and durability over the life of the engine.

Installation & Fitment:

Installation of the Melling valve spring shim is straightforward for experienced mechanics and engine builders. It is designed to fit a wide range of Chrysler, Dodge, Jeep, and Ram engines from model years 2002 through 2026, including popular vehicles such as the Chrysler 300, Dodge Ram trucks, Durango, Charger, Challenger, Jeep Grand Cherokee, Wrangler, and Ram 1500/2500/3500 series.

Melling recommends using new valve retainers when installing both new and reclaimed valves to ensure optimal valve train performance and longevity. No special modifications are required, making it an ideal upgrade or replacement part for maintaining or enhancing your engine’s valve spring system.

What's Included:

• One Melling High Performance Valve Spring Shim (0.050 inch thickness)

Ideal For:

This valve spring shim is perfect for automotive enthusiasts, professional engine builders, and performance tuners who demand reliable, OEM-quality components for their Chrysler, Dodge, Jeep, or Ram Hemi and SRT engines. Whether you are rebuilding an engine, upgrading valve train components, or maintaining your vehicle’s performance, this shim ensures precise valve spring geometry and dependable operation.

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.