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Part #: 598900CE-8
The Manley Extreme Duty Piston Set is engineered specifically for Chrysler’s 6.4L 392 HEMI engines, delivering a robust foundation for high-performance builds. These forged pistons are designed to withstand the rigors of street, track, and professional racing applications, offering exceptional strength and durability. Featuring a -12.5cc dish design and a 4.090-inch bore, they optimize combustion chamber volume to support precise compression ratios and improved engine efficiency.
Ideal for enthusiasts and engine builders aiming to increase power output while maintaining reliability, this piston set ensures consistent performance under demanding conditions. Whether upgrading a factory engine or assembling a race-ready powerplant, these pistons provide the durability and precision fitment required for long-term success.
Manley’s Extreme Duty Pistons incorporate advanced materials and design innovations to meet the highest standards of performance and durability:
Manufactured using 2618 aluminum alloy forgings, these pistons feature a dense, uniform grain structure that excels in high-performance and racing environments. The forging process enhances strength and thermal stability, enabling the pistons to endure elevated combustion pressures and temperatures without compromising integrity.
Carefully engineered cam and barrel skirt profiles reduce piston-to-cylinder wall friction, while the moly skirt coating further lowers friction and helps maintain a tight piston ring seal. This combination reduces wear and piston slap noise, contributing to improved engine efficiency and longevity.
Tool steel wrist pins ensure a robust connection to the connecting rods, resisting bending or deformation during high-RPM operation. The coated piston surfaces improve heat dissipation and protect against scuffing, supporting consistent performance over extended use.
This piston set is a direct fit for Chrysler 6.4L HEMI engines with a 4.090-inch bore and 1.210-inch compression height. The -12.5cc dish volume is engineered to complement specific combustion chamber designs and compression ratios, requiring no special modifications beyond standard engine assembly procedures.
Proper block bore machining to the specified size and careful ring and pin installation per engine specifications are essential for optimal performance and reliability. The set includes eight pistons, perfect for a complete V8 rebuild on compatible vehicles.
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.
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598900CE-8 Manley Performance 11-24 Chrysler 300 / Dodge Challenger / Dodge Charger / Dodge Durango / Jeep Grand Cherokee / Jeep Wrangler / Ram 2500 / Ram 3500 / Jeep Grand Wagoneer 6.4L 392 Extreme Duty Piston Set. Manley’s forged 2618 aluminum pistons deliver exceptional strength and durability for high-performance 6.4L HEMI builds. Featuring a -12.5cc dish design and coated skirts, these pistons optimize combustion efficiency while reducing friction and wear. Ideal for street, track, and race applications, they ensure reliable power handling and long engine life under extreme conditions. Includes tool steel wrist pins for added toughness at high RPMs.
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Part #: 598900CE-8
The Manley Extreme Duty Piston Set is engineered specifically for Chrysler’s 6.4L 392 HEMI engines, delivering a robust foundation for high-performance builds. These forged pistons are designed to withstand the rigors of street, track, and professional racing applications, offering exceptional strength and durability. Featuring a -12.5cc dish design and a 4.090-inch bore, they optimize combustion chamber volume to support precise compression ratios and improved engine efficiency.
Ideal for enthusiasts and engine builders aiming to increase power output while maintaining reliability, this piston set ensures consistent performance under demanding conditions. Whether upgrading a factory engine or assembling a race-ready powerplant, these pistons provide the durability and precision fitment required for long-term success.
Manley’s Extreme Duty Pistons incorporate advanced materials and design innovations to meet the highest standards of performance and durability:
Manufactured using 2618 aluminum alloy forgings, these pistons feature a dense, uniform grain structure that excels in high-performance and racing environments. The forging process enhances strength and thermal stability, enabling the pistons to endure elevated combustion pressures and temperatures without compromising integrity.
Carefully engineered cam and barrel skirt profiles reduce piston-to-cylinder wall friction, while the moly skirt coating further lowers friction and helps maintain a tight piston ring seal. This combination reduces wear and piston slap noise, contributing to improved engine efficiency and longevity.
Tool steel wrist pins ensure a robust connection to the connecting rods, resisting bending or deformation during high-RPM operation. The coated piston surfaces improve heat dissipation and protect against scuffing, supporting consistent performance over extended use.
This piston set is a direct fit for Chrysler 6.4L HEMI engines with a 4.090-inch bore and 1.210-inch compression height. The -12.5cc dish volume is engineered to complement specific combustion chamber designs and compression ratios, requiring no special modifications beyond standard engine assembly procedures.
Proper block bore machining to the specified size and careful ring and pin installation per engine specifications are essential for optimal performance and reliability. The set includes eight pistons, perfect for a complete V8 rebuild on compatible vehicles.
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.
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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.
