Manley Performance Platinum Series Pistons

Chrysler HEMI 6.4L (392) - 4.100" Bore +0.010 Oversize, 12.5cc Dish, 1.210" Compression Height - Set of 8

598910CE-8

Overview:

The Manley Performance Platinum Series pistons are precision-engineered forged pistons designed specifically for the Chrysler 6.4L HEMI engine. Crafted to exacting standards, this set of eight pistons features a 12.5cc dish design, a 4.100" bore with +0.010" oversize, and a 1.210" compression height, making them ideal for high-performance builds and engine rebuilds requiring durable, reliable components.

These pistons are perfect for professional engine builders, tuners, and enthusiasts who demand superior strength and longevity under extreme conditions. Whether you are building a street performance engine or a track-focused powerplant, Manley’s Platinum Series pistons deliver consistent performance and durability to help you get the most out of your Chrysler HEMI 6.4L.

Key Features:

Manley’s Platinum Series pistons incorporate advanced materials and design features to ensure optimal performance and reliability:

• Constructed from high-strength 2618 aluminum alloy forgings for excellent fatigue resistance and durability.
• Proven cam and barrel skirt profiles reduce friction and wear, enhancing piston stability and longevity.
• Tool steel wrist pins provide superior strength and resistance to bending or deformation under high loads.
• Moly skirt coatings on select part numbers reduce friction and improve piston ring seal for better efficiency.
• 12.5cc dished piston crown design supports higher compression ratios and improved combustion chamber dynamics.
• +0.010" oversize bore accommodates engine rebuilds with slightly worn cylinders, ensuring a precise fit.
• 1.210" compression height optimized for Chrysler 6.4L HEMI engine block deck height and connecting rod length.
• Set of 8 pistons included, covering all cylinders for a complete engine rebuild.

Construction & Design:

Manley’s Platinum Series pistons are meticulously crafted using 2618 alloy forgings, a premium aluminum alloy known for its excellent strength and thermal resistance. The forging process ensures a dense, uniform grain structure that withstands the rigors of high-performance combustion and elevated cylinder pressures.

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. Tool steel wrist pins are precision-machined for a secure, durable connection between the piston and connecting rod, capable of handling high RPM and load conditions.

Additionally, the molybdenum skirt coating applied to select pistons reduces friction and wear, improving ring seal and overall engine efficiency. The 12.5cc dish in the piston crown is designed to optimize combustion chamber shape, supporting efficient fuel burn and power delivery.

Installation & Fitment:

This piston set is engineered as a direct replacement for Chrysler 6.4L HEMI engines requiring a 4.100" bore with +0.010" oversize. The 1.210" compression height matches factory specifications for proper piston-to-valve clearance and ring positioning.

Installation requires standard engine rebuilding procedures, including proper honing and cleaning of cylinder bores. No special modifications or tuning are inherently required beyond typical rebuild practices.

• Designed for Chrysler 6.4L HEMI engine blocks with 4.100" bore +0.010" oversize.
• Compatible with factory connecting rods and piston rings sized for this bore and compression height.
• Professional installation recommended to ensure optimal engine performance and longevity.

What’s Included

• Set of 8 forged 2618 alloy pistons with 12.5cc dish design
• Tool steel wrist pins
• Pre-applied moly skirt coatings on applicable pistons
• Complete set ready for installation in Chrysler 6.4L HEMI rebuilds

Ideal For:

• Engine builders and tuners upgrading or rebuilding Chrysler 6.4L HEMI engines
• Performance enthusiasts seeking durable, high-strength pistons for street or track use
• Applications requiring +0.010" oversize pistons to address cylinder wear
• Builders aiming for improved reliability and power handling in naturally aspirated or forced induction setups

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.