Manley Performance Extreme Duty Piston Set

Chrysler HEMI 6.1L 4.095 Inch Bore

599905CE-8

Overview:

The Manley Performance Extreme Duty Piston Set is engineered specifically for Chrysler HEMI 6.1L engines with a 4.095 inch bore. These high-quality pistons are designed to meet the demands of professional engine builders and serious enthusiasts seeking enhanced durability and performance in their builds.

Constructed from premium 2618 alloy forgings, this piston set offers exceptional strength and heat resistance, making it ideal for high-stress applications such as racing, high-performance street driving, and heavy-duty use. Whether you're rebuilding your engine or upgrading for increased power, these pistons provide reliable performance and longevity.

With proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select part numbers, Manley pistons deliver reduced friction and wear, helping your engine run smoother and last longer under extreme conditions.

Key Features:

This piston set incorporates advanced materials and design features to ensure superior strength and performance:

• Forged from 2618 aluminum alloy for maximum strength and durability under high heat and pressure.
• Proven cam and barrel skirt profiles reduce friction and improve piston stability within the cylinder.
• Tool steel wrist pins provide enhanced wear resistance and secure piston-to-connecting rod connection.
• Moly skirt coatings on select pistons reduce friction and improve break-in characteristics.
• 12.5cc dome design optimizes combustion chamber volume for improved compression and power potential.
• Precision machining ensures consistent fitment and performance in 4.095 inch bore Chrysler HEMI 6.1L engines.
• Extreme duty construction suitable for high-performance, racing, and heavy-duty applications.

Construction & Design:

Manley’s Platinum Series pistons are crafted using premium 2618 alloy forgings, known for their excellent strength-to-weight ratio and thermal resistance. This material choice allows the pistons to withstand the intense heat and pressures generated in high-performance HEMI engines.

The pistons feature carefully engineered cam and barrel skirt profiles that minimize piston slap and reduce friction, contributing to smoother engine operation and longer component life. Tool steel wrist pins add durability at critical stress points, while the optional moly skirt coatings further enhance wear resistance and reduce break-in time.

The -12.5cc dome design is optimized to improve combustion efficiency and support higher compression ratios, helping you extract more power from your engine without sacrificing reliability.

Installation & Fitment:

This piston set is designed as a direct replacement for Chrysler HEMI 6.1L engines with a 4.095 inch bore. It fits precisely within factory specifications, ensuring straightforward installation by experienced engine builders.

Proper engine assembly practices should be followed, but no special modifications or machining beyond standard bore sizing are required. These pistons are ideal for rebuilds, performance upgrades, and custom engine builds where durability and performance are priorities.

What's Included:

• Complete set of forged pistons for Chrysler HEMI 6.1L 4.095 inch bore engines
• Tool steel wrist pins
• Optional moly skirt coatings on select pistons

Ideal For:

• Professional engine builders and tuners seeking reliable, high-strength pistons
• Performance enthusiasts upgrading Chrysler HEMI 6.1L engines for increased power and durability
• Racing and high-performance street applications requiring extreme duty components
• Rebuilds and custom engine builds demanding precision and longevity

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.