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Chrysler 5.7L HEMI 3.937in Bore .020in Oversize
597420C-8
Overview:
The Manley Performance Platinum Series piston set is engineered specifically for Chrysler 5.7L HEMI engines requiring a 3.937-inch bore with a .020-inch oversize. Designed for serious enthusiasts and professional engine builders, these pistons deliver exceptional strength and reliability under demanding conditions.
Constructed from premium 2618 alloy forgings, this piston set is ideal for those looking to upgrade their engine’s durability and performance. Whether you are building a high-performance street engine or a race-ready powerplant, these pistons provide the foundation for improved combustion efficiency and long-lasting operation.
Key Features:
Manley’s Platinum Series pistons incorporate advanced materials and design features to ensure optimal performance and durability:
Construction & Design:
Each piston in this set is meticulously crafted using 2618 alloy, known for its excellent strength-to-weight ratio and resistance to high temperatures. The forging process ensures a dense, uniform grain structure that withstands the rigors of high-performance operation.
The cam and barrel skirt profiles have been extensively tested to minimize piston slap and reduce wear on cylinder walls, contributing to longer engine life and smoother operation. Tool steel wrist pins provide a durable connection between the piston and connecting rod, capable of handling elevated loads without deformation.
The moly skirt coating applied to select pistons further reduces friction during the critical break-in period, promoting quicker seating and less wear. The 9.3cc dome shape is designed to enhance combustion efficiency by improving flame propagation and compression characteristics.
Installation & Fitment:
This piston set is engineered as a direct replacement for Chrysler 5.7L HEMI engines requiring a .020-inch oversize bore. It fits engines with a 3.937-inch bore diameter and is compatible with stock or aftermarket components designed for this specification.
Installation requires standard engine assembly procedures, including proper honing and cleaning of cylinder bores. No special modifications or tuning changes are inherently required solely due to piston installation, but professional assembly and balancing are recommended for optimal results.
What's Included:
Ideal For:
This piston set is perfect 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.
Please note: The ETA is an estimate, not a guarantee. While we work closely with our suppliers to keep dates as accurate as possible, delays due to shipping carriers, weather, customs, or supplier-side issues may occasionally push the actual arrival beyond the date shown. Likewise, inventory may arrive sooner than the ETA in many cases. If you would like to be notified for when this item arrives, sign up for our back in stock notifications!
597420C-8 Manley Performance Chrysler 300 (2005-2008) / Dodge Charger (2006-2008) / Magnum (2005-2008) 5.7L Hemi 3.937in Bore .020in Oversize 9.3cc Dome Piston Set. Manley’s Platinum Series 5.7L Hemi pistons deliver unmatched strength and precision with 2618 alloy forgings, moly-coated skirts, and tool steel wrist pins. Designed for .020in oversize bore with a 9.3cc dome, these pistons ensure superior durability and performance for serious engine builders and tuners.
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MADE IN THE USA
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Chrysler 5.7L HEMI 3.937in Bore .020in Oversize
597420C-8
Overview:
The Manley Performance Platinum Series piston set is engineered specifically for Chrysler 5.7L HEMI engines requiring a 3.937-inch bore with a .020-inch oversize. Designed for serious enthusiasts and professional engine builders, these pistons deliver exceptional strength and reliability under demanding conditions.
Constructed from premium 2618 alloy forgings, this piston set is ideal for those looking to upgrade their engine’s durability and performance. Whether you are building a high-performance street engine or a race-ready powerplant, these pistons provide the foundation for improved combustion efficiency and long-lasting operation.
Key Features:
Manley’s Platinum Series pistons incorporate advanced materials and design features to ensure optimal performance and durability:
Construction & Design:
Each piston in this set is meticulously crafted using 2618 alloy, known for its excellent strength-to-weight ratio and resistance to high temperatures. The forging process ensures a dense, uniform grain structure that withstands the rigors of high-performance operation.
The cam and barrel skirt profiles have been extensively tested to minimize piston slap and reduce wear on cylinder walls, contributing to longer engine life and smoother operation. Tool steel wrist pins provide a durable connection between the piston and connecting rod, capable of handling elevated loads without deformation.
The moly skirt coating applied to select pistons further reduces friction during the critical break-in period, promoting quicker seating and less wear. The 9.3cc dome shape is designed to enhance combustion efficiency by improving flame propagation and compression characteristics.
Installation & Fitment:
This piston set is engineered as a direct replacement for Chrysler 5.7L HEMI engines requiring a .020-inch oversize bore. It fits engines with a 3.937-inch bore diameter and is compatible with stock or aftermarket components designed for this specification.
Installation requires standard engine assembly procedures, including proper honing and cleaning of cylinder bores. No special modifications or tuning changes are inherently required solely due to piston installation, but professional assembly and balancing are recommended for optimal results.
What's Included:
Ideal For:
This piston set is perfect 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.
