Manley Performance Extreme Duty Piston Set

2005–2010 Chrysler 300C, Dodge Challenger, Dodge Charger, Dodge Magnum, Jeep Grand Cherokee 6.1L HEMI

Part #: 597860CE-8

Overview

The Manley Extreme Duty Piston Set is engineered specifically for Chrysler 6.1L HEMI engines with a 4.060-inch bore and a 1.220-inch compression dome. Designed to meet the demands of high-performance stroker builds, these pistons offer exceptional strength, durability, and precision. Whether you are a professional engine builder or an enthusiast aiming to maximize power and reliability, this piston set delivers the robust performance required for both street and race applications.

Crafted from premium 2618 aluminum alloy forgings, these pistons feature a -1.5cc dish volume to optimize combustion chamber dynamics and compression ratios. This design enhances combustion efficiency and power output while maintaining durability under extreme conditions.

Key Features

Manley’s Extreme Duty Pistons incorporate advanced materials and engineering to ensure superior performance and longevity:

• Forged from high-strength 2618 aluminum alloy for excellent fatigue resistance and thermal stability.
• Precision cam and barrel skirt profiles reduce friction and piston slap, improving ring seal and engine smoothness.
• Equipped with durable tool steel wrist pins for a secure, long-lasting connection to the connecting rods.
• Moly skirt coatings on select pistons minimize friction and protect against scuffing during operation.
• Flat top piston design with a -1.5cc dish volume to optimize compression and combustion in stroker engines.
• Machined to exacting tolerances for consistent fitment and reliable performance in 6.1L HEMI stroker builds.
• Engineered to withstand high RPM and boost pressures typical of performance and racing environments.

Construction & Design

These pistons are forged from premium 2618 aluminum alloy, a material favored in motorsports for its superior strength and ability to endure elevated temperatures and stresses. The cam and barrel skirt profiles have been rigorously tested to reduce piston slap and improve ring sealing, contributing to longer engine life and smoother operation.

Tool steel wrist pins provide a robust and precise connection between the piston and connecting rod, capable of handling the increased loads associated with stroker configurations. The moly skirt coating applied to select pistons further reduces friction against cylinder walls, enhancing durability and minimizing wear during high-performance use.

Installation & Fitment

This piston set is designed as a direct replacement for Chrysler 6.1L HEMI engines bored to 4.060 inches with a 1.220-inch compression dome. Installation follows standard engine assembly procedures and requires no special modifications beyond typical machining and clearance checks. These pistons are ideal for stroked engine builds where precise piston-to-cylinder clearance and optimized combustion chamber volume are critical.

What's Included

• Set of 8 forged 2618 aluminum alloy pistons
• Tool steel wrist pins
• Manufacturer specifications and installation guidelines

Ideal For

• Performance enthusiasts building high-output Chrysler 6.1L HEMI stroker engines
• Professional engine builders requiring durable, precision pistons for racing or street performance
• Applications demanding enhanced strength and reliability under high RPM and boost conditions
• Builders seeking optimized combustion chamber volume with the -1.5cc flat top piston design