Manley Performance Stroker Series Pistons

Chrysler 6.1L HEMI 4.080in Bore 1.085in Compression Dome -11.5cc Dish

598680C-8

Overview:

The Manley Performance Stroker Series Pistons are precision-engineered components designed specifically for the Chrysler 6.1L HEMI engine. Featuring a 4.080-inch bore and 1.085-inch compression dome, these pistons incorporate a -11.5cc dish to optimize combustion chamber volume and support stroker engine builds.

Ideal for professional engine builders, tuners, and serious enthusiasts, these pistons deliver superior strength and durability for high-performance applications. Whether you are building a street-driven muscle car or a track-focused machine, Manley’s Stroker Series pistons provide the reliability and performance needed to handle increased power and demanding conditions.

With a focus on quality and precision, these pistons help improve engine efficiency and longevity while supporting enhanced horsepower and torque output.

Key Features:

Manley’s Stroker Series Pistons incorporate advanced materials and design features to ensure optimal performance and durability:

• Forged from premium 2618 aluminum alloy for exceptional strength and fatigue resistance under high-stress conditions.
• Proven cam and barrel skirt profiles reduce friction and wear, enhancing piston stability and longevity.
• Tool steel wrist pins provide superior durability and precise fitment for reliable piston-to-connecting rod connection.
• Molybdenum skirt coatings on select part numbers reduce friction and improve wear resistance in the cylinder bore.
• 11.5cc dished piston design optimizes compression ratio for stroker engine configurations.
• Precision machining ensures consistent bore sizing and tight tolerances for excellent ring sealing and combustion efficiency.
• Designed to withstand high cylinder pressures and elevated RPMs common in performance and racing engines.
• Compatible with factory and aftermarket components for versatile engine build options.

Construction & Design:

Manley’s Stroker Series Pistons are crafted from 2618 alloy, a high-strength aluminum alloy known for its excellent thermal stability and fatigue resistance. This material choice allows the pistons to endure the extreme heat and pressure generated in high-performance HEMI engines.

The pistons feature carefully engineered cam and barrel skirt profiles that minimize piston slap and reduce friction against the cylinder walls. This design enhances engine smoothness and extends component life.

Additionally, the tool steel wrist pins provide a robust connection to the connecting rods, ensuring reliable power transfer and durability during aggressive driving or racing conditions. The moly skirt coatings applied to select pistons further reduce friction and wear, contributing to improved efficiency and longevity.

Installation & Fitment:

This set of eight pistons is designed specifically for Chrysler 6.1L HEMI engines with a 4.080-inch bore and 1.085-inch compression dome. They are ideal for stroker engine builds requiring a -11.5cc dish piston design.

Installation should be performed by experienced engine builders or technicians familiar with high-performance engine assembly. Proper ring installation, clearances, and torque specifications must be followed to ensure optimal performance and reliability.

What's Included:

• Set of 8 forged 2618 alloy pistons with -11.5cc dish design
• Tool steel wrist pins
• Proven cam and barrel skirt profiles
• Moly skirt coatings on select pistons

Ideal For:

• Professional engine builders and tuners upgrading Chrysler 6.1L HEMI stroker engines
• Performance enthusiasts seeking durable, high-strength pistons for street or track use
• Applications requiring improved piston durability and reduced friction under high RPM and cylinder pressure
• Muscle car restorations and engine rebuilds aiming for enhanced power and reliability

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.