Manley Performance Platinum Series Pistons

2003–2024 Chrysler 300, 300C, Dodge Challenger, Charger, Dakota, Durango, Magnum, Ram, Jeep Commander, Grand Cherokee, Wagoneer 5.7L HEMI

Part #: 598500C-8

Overview

The Manley Performance Platinum Series Pistons are precision-forged components engineered specifically for Chrysler 5.7L HEMI engines with a 3.917-inch bore and 4.050-inch stroke. Featuring a -23cc dished design, these pistons optimize combustion chamber volume and compression ratios, making them an excellent choice for engine builders aiming to enhance performance and reliability.

Designed for professional engine builders, tuners, and serious enthusiasts, these pistons deliver exceptional strength and durability under demanding conditions. Whether building a high-performance street engine or a race-ready powerplant, Manley’s Platinum Series pistons ensure consistent power delivery and long-lasting performance.

Key Features

Manley’s Platinum Series Pistons incorporate advanced engineering and premium materials to provide superior performance and durability. Key features include:

• Forged from 2618 aluminum alloy for outstanding strength and fatigue resistance in high-performance applications
• Proven cam and barrel skirt profiles that reduce friction and piston slap, enhancing stability and longevity
• Durable tool steel wrist pins designed to withstand high loads and stresses
• Molybdenum skirt coatings on select pistons to reduce friction and improve wear resistance
• -23cc dished piston design optimized for combustion chamber volume and compression ratio in the 5.7L HEMI platform
• Standard piston configuration ensuring reliable fitment with factory and aftermarket components
• Precision manufacturing for consistent bore sizing and weight balance, promoting smooth engine operation
• Trusted by professional engine builders and tuners worldwide for superior durability and performance

Construction & Design

These pistons are forged from premium 2618 aluminum alloy, a material favored in racing and high-performance engines due to its excellent strength-to-weight ratio and ability to endure extreme thermal and mechanical stresses. The forging process enhances the grain structure, resulting in pistons that resist cracking and deformation under high cylinder pressures.

The cam and barrel skirt profiles have been extensively tested to minimize piston slap and friction, contributing to quieter operation and improved efficiency. Tool steel wrist pins provide a robust connection between piston and connecting rod, critical for handling the high loads generated in boosted or high-RPM engines. Additionally, the moly skirt coating reduces friction between the piston skirt and cylinder wall, minimizing wear and enhancing ring seal longevity.

Installation & Fitment

This piston set is a direct fit for Chrysler 5.7L HEMI engines with a 3.917-inch bore and 4.050-inch stroke. The -23cc dish volume is designed to maintain proper compression ratios and combustion chamber geometry when paired with compatible cylinder heads and components. Installation follows standard engine assembly procedures, requiring precise measurements for ring end gaps, piston-to-wall clearance, and wrist pin fitment. No modifications to the engine block or other components are typically necessary when using these pistons within their intended application.

What's Included

• Complete set of Manley Platinum Series forged pistons with -23cc dish volume
• Tool steel wrist pins
• Assembly instructions and specifications

Ideal For

• Professional engine builders and performance tuners upgrading Chrysler 5.7L HEMI engines
• High-performance street and race engines requiring durable forged pistons
• Applications demanding reliable piston strength under increased boost or high RPM operation
• Builders seeking optimized combustion chamber volume with the -23cc dished piston design