Manley Performance Extreme Duty Platinum Pistons

2003–2024 Chrysler 300, 300C, Dodge Challenger, Charger, Dakota, Durango, Magnum, Ram, Jeep Commander, Grand Cherokee, Wagoneer, Ram 1500, 2500, 3500 5.7L HEMI

Part #: 597105CE-8

Overview

Manley Performance Extreme Duty Platinum Pistons are precision-engineered forged pistons designed specifically for the Chrysler 5.7L HEMI engine, covering model years 2003 through 2024. Built for serious enthusiasts and professional engine builders, these pistons deliver exceptional strength and durability to handle high-performance and forced induction applications. Whether upgrading for increased horsepower or enhancing engine longevity, these pistons provide a reliable foundation for demanding street and occasional track use.

Constructed from premium 2618 aluminum alloy, these pistons withstand elevated temperatures and pressures, ensuring consistent performance under extreme conditions. The -12cc dished design optimizes combustion chamber volume and compression ratio, allowing for precise tuning without sacrificing reliability.

Key Features

Manley’s Extreme Duty Platinum Pistons incorporate advanced materials and design elements to maximize performance and durability:

• Forged from high-strength 2618 aluminum alloy for superior toughness and thermal resistance
• Proven cam and barrel skirt profiles reduce friction and piston slap for enhanced engine smoothness
• Tool steel wrist pins engineered for maximum durability and precise fitment
• Moly skirt coatings on select pistons minimize friction and improve piston-to-cylinder wall interaction
• -12cc dished piston design optimizes combustion chamber volume and compression ratio
• Precision 3.922-inch bore diameter to match stock stroke and maintain engine balance
• 90.9mm piston diameter tailored specifically for Chrysler 5.7L HEMI applications
• Extreme duty construction suitable for naturally aspirated and forced induction setups

Construction & Design

These pistons are meticulously crafted from 2618 aluminum alloy, known for its exceptional strength and ability to endure the high temperatures and pressures typical of high-performance engines. The cam and barrel skirt profiles have been refined through extensive testing to reduce piston slap and wear, contributing to improved engine longevity and quieter operation.

Tool steel wrist pins provide a robust, precise connection between the piston and connecting rod, capable of withstanding aggressive driving and high RPM conditions. The moly skirt coating on select models further reduces friction, enhancing efficiency and reducing heat generation within the cylinder walls.

The -12cc dished piston design allows for optimized combustion chamber dynamics, enabling fine-tuning of compression ratios to suit a variety of performance builds without compromising reliability or durability.

Installation & Fitment

These pistons are designed as direct replacements for Chrysler 5.7L HEMI engines with a 90.9mm bore and stock stroke configuration. They fit a wide range of vehicles including Chrysler 300 and 300C, Dodge Challenger, Charger, Dakota, Durango, Magnum, Ram trucks, and Jeep Commander, Grand Cherokee, and Wagoneer models from 2003 through 2024.

Installation should be performed by experienced engine builders or technicians familiar with high-performance engine assembly. Proper clearances and torque specifications must be observed to ensure optimal performance and durability.

What's Included

• Complete set of Extreme Duty Platinum Pistons with -12cc dish design
• Tool steel wrist pins
• Installation instructions and technical specifications

Ideal For

• Performance enthusiasts upgrading their Chrysler 5.7L HEMI engines
• Professional engine builders requiring durable, high-strength pistons
• High-output naturally aspirated and forced induction applications
• Street performance and occasional track use
• Engine rebuilds demanding improved reliability and longevity under extreme conditions

Manley Performance manufactures high-strength engine internals for serious builds—especially forged pistons, connecting rods, valves, and valvetrain components developed for racing and high-output street applications. If you’re building for boost, high compression, or sustained RPM, Manley is a common choice for parts engineered to take abuse and keep power reliable.