Manley Performance Platinum Series Piston Set

Chrysler 5.7L HEMI 99.63mm Bore, Stock Stroke

597505C-8

Overview:

The Manley Performance Platinum Series Piston Set is engineered specifically for Chrysler 5.7L HEMI engines featuring a 99.63mm bore and a stock stroke. Designed for enthusiasts and professional engine builders alike, these pistons deliver exceptional strength and reliability for high-performance applications.

Whether you are rebuilding your engine for street performance, racing, or heavy-duty use, this piston set offers the durability and precision you need to maximize power and engine longevity. With a -3.922 inch dome design, these pistons help optimize combustion chamber dynamics for improved efficiency and power output.

Key Features:

Manley’s Platinum Series pistons incorporate advanced materials and design elements to ensure superior performance and durability:

• Forged from premium 2618 aluminum alloy for excellent strength and fatigue resistance under high stress.
• Proven cam and barrel skirt profiles reduce friction and wear, enhancing piston stability and longevity.
• Equipped with hardened tool steel wrist pins for reliable pin retention and reduced deformation.
• Molybdenum skirt coatings on select part numbers minimize friction and improve break-in characteristics.
• Precision machining ensures tight tolerances and optimal fitment for the 99.63mm bore size.
• 3.922 inch dome design tailored to optimize compression and combustion efficiency in 5.7L HEMI engines.
• Compatible with stock stroke dimensions, maintaining factory engine geometry and balance.
• Trusted by professional engine builders and tuners for consistent, high-quality performance.

Construction & Design:

The pistons are crafted using a forged 2618 aluminum alloy known for its superior strength and thermal conductivity compared to cast pistons. This material choice allows the pistons to withstand the high combustion pressures and temperatures typical of performance and racing engines.

Manley’s attention to detail is evident in the cam and barrel skirt profiles, which are designed to reduce piston slap and improve oil control. The inclusion of tool steel wrist pins provides enhanced durability and resistance to wear during high RPM operation.

Additionally, the moly skirt coating applied to select pistons reduces friction against the cylinder walls, promoting smoother operation and longer engine life. The dome shape of the piston crown is engineered to optimize combustion chamber shape and compression ratio, contributing to improved power delivery and efficiency.

Installation & Fitment:

This piston set is designed as a direct replacement for Chrysler 5.7L HEMI engines with a 99.63mm bore and stock stroke. It fits applications requiring a -3.922 inch dome piston profile and is compatible with factory components and clearances.

Installation should be performed by experienced engine builders or technicians familiar with forged piston assemblies and proper engine assembly procedures. No modifications to the engine block or stroke are necessary when using this piston set.

What’s Included

• Complete set of forged 2618 aluminum alloy pistons with -3.922 inch dome profile
• Tool steel wrist pins
• Installation instructions and specifications

Ideal For:

• Performance enthusiasts upgrading or rebuilding Chrysler 5.7L HEMI engines
• Professional engine builders seeking durable, high-quality forged pistons
• Street and track applications requiring improved strength and reliability
• Engines running moderate to high boost or increased compression ratios

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.