Chrysler 6.4L HEMI 4.090in Bore / 3.724in Stroke 11:1 Compression Ratio
598800C-8
Overview:
The Manley Performance Platinum Series piston set is engineered specifically for the Chrysler 6.4L HEMI engine, featuring a 4.090-inch bore and 3.724-inch stroke with an 11:1 compression ratio. These high-quality forged pistons are designed to deliver exceptional strength and durability for enthusiasts and professional engine builders seeking reliable performance upgrades.
Whether you are building a high-performance street engine or a race-ready powerplant, this piston set provides the durability and precision required to handle increased power levels and demanding conditions. You’ll benefit from improved combustion efficiency and long-lasting reliability, making these pistons an excellent foundation for your engine build.
Key Features:
Manley’s Platinum Series pistons incorporate advanced materials and design features to ensure superior performance and longevity:
Construction & Design:
The pistons are forged from premium 2618 aluminum alloy, which offers superior toughness and thermal stability compared to standard cast pistons. This material choice helps the pistons endure the extreme temperatures and pressures found in high-output engines.
The cam and barrel skirt profiles have been carefully developed to minimize friction and wear, contributing to smoother engine operation and longer service life. Additionally, the moly skirt coating on select pistons further reduces friction, enhancing durability and efficiency.
Each piston features a tool steel wrist pin, providing a robust connection between the piston and connecting rod. The 1.75cc dome shape is optimized for the 11:1 compression ratio, improving combustion efficiency and power output without compromising reliability.
Installation & Fitment:
This piston set is designed as a direct fit for Chrysler 6.4L HEMI engines with a 4.090-inch bore and 3.724-inch stroke. It is intended for professional engine builders and experienced enthusiasts who are assembling or upgrading their engines.
Proper machining and assembly practices are required to ensure optimal fitment and performance. These pistons are compatible with existing engine components designed for the specified bore and stroke dimensions.
What’s Included
Ideal For:
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.
ETA stands for Estimated Time of Arrival. The date shown is calculated using our Available-to-Promise (ATP) system, which tracks real-time supplier commitments to determine when a product is expected to be available for delivery. Specifically, the date is calculated by adding 9 business days from the date a supplier has committed to ship the product, representing a worst-case scenario for when we can expect to receive inventory.
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Manley’s Platinum Series 6.4L Hemi pistons deliver unmatched strength and precision with 2618 alloy forgings, moly-coated skirts, and tool steel wrist pins. Designed for high-performance builds, these 1.75cc dome pistons with an 11:1 compression ratio ensure durability and power for serious engine tuners.
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Chrysler 6.4L HEMI 4.090in Bore / 3.724in Stroke 11:1 Compression Ratio
598800C-8
Overview:
The Manley Performance Platinum Series piston set is engineered specifically for the Chrysler 6.4L HEMI engine, featuring a 4.090-inch bore and 3.724-inch stroke with an 11:1 compression ratio. These high-quality forged pistons are designed to deliver exceptional strength and durability for enthusiasts and professional engine builders seeking reliable performance upgrades.
Whether you are building a high-performance street engine or a race-ready powerplant, this piston set provides the durability and precision required to handle increased power levels and demanding conditions. You’ll benefit from improved combustion efficiency and long-lasting reliability, making these pistons an excellent foundation for your engine build.
Key Features:
Manley’s Platinum Series pistons incorporate advanced materials and design features to ensure superior performance and longevity:
Construction & Design:
The pistons are forged from premium 2618 aluminum alloy, which offers superior toughness and thermal stability compared to standard cast pistons. This material choice helps the pistons endure the extreme temperatures and pressures found in high-output engines.
The cam and barrel skirt profiles have been carefully developed to minimize friction and wear, contributing to smoother engine operation and longer service life. Additionally, the moly skirt coating on select pistons further reduces friction, enhancing durability and efficiency.
Each piston features a tool steel wrist pin, providing a robust connection between the piston and connecting rod. The 1.75cc dome shape is optimized for the 11:1 compression ratio, improving combustion efficiency and power output without compromising reliability.
Installation & Fitment:
This piston set is designed as a direct fit for Chrysler 6.4L HEMI engines with a 4.090-inch bore and 3.724-inch stroke. It is intended for professional engine builders and experienced enthusiasts who are assembling or upgrading their engines.
Proper machining and assembly practices are required to ensure optimal fitment and performance. These pistons are compatible with existing engine components designed for the specified bore and stroke dimensions.
What’s Included
Ideal For:
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.
Free Standard Shipping on orders over $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
Free Standard Shipping on orders over $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
