Manley Performance Forged Crankshaft

2003–2010 Chrysler 5.7L / 6.1L HEMI V8 Engines

Part #: 191832

Overview

The Manley Performance 4340 Forged Crankshaft is a precision-engineered upgrade designed specifically for Chrysler 5.7L and 6.1L HEMI V8 engines from 2003 to 2010. Built to provide a solid foundation for high-performance engine builds, this crankshaft offers enhanced strength and durability to handle increased power and torque demands. Whether you are assembling a street performance engine, a track-ready build, or a high-output daily driver, this forged crankshaft delivers the reliability and precision needed for long-lasting performance.

Featuring an integrated 32 tooth reluctor wheel, it maintains full compatibility with factory ignition and timing systems, ensuring seamless integration without the need for additional modifications. This crankshaft is ideal for enthusiasts and engine builders seeking to upgrade their bottom end with a component that balances OEM fitment and high-performance capability.

Key Features

Manley’s forged crankshaft combines advanced materials and expert craftsmanship to provide a dependable upgrade for Chrysler HEMI V8 engines:

• Constructed from premium 4340 alloy steel for superior toughness and fatigue resistance
• Forged manufacturing process enhances grain structure for improved durability under high stress
• 4.050" stroke designed to match or upgrade factory specifications for 5.7L and 6.1L HEMI engines
• Integrated 32 tooth reluctor wheel ensures precise crank position sensing and ignition timing compatibility
• Precision machined journals and bearing surfaces for optimal fitment and smooth engine operation
• Direct bolt-in replacement maintaining OEM mounting points and sensor interfaces
• Compatible with a wide range of domestic engine builds, supporting both street and performance applications
• Ideal for increasing bottom-end strength without sacrificing factory integration

Construction & Design

This crankshaft is meticulously forged from high-strength 4340 alloy steel, a material renowned for its excellent tensile strength and resistance to wear. The forging process refines the metal’s grain structure, resulting in a component capable of enduring the extreme loads and stresses encountered in high-performance engines.

Manley’s precision machining ensures all bearing journals and surfaces meet tight tolerances, promoting smooth rotation and minimizing friction. The factory-style integrated 32 tooth reluctor wheel allows for direct replacement without requiring aftermarket sensors or timing adjustments, preserving factory ignition system functionality.

Installation & Fitment

Designed as a direct fit replacement for Chrysler 5.7L and 6.1L HEMI engines, this crankshaft installs easily using existing engine components. It maintains all OEM mounting points and sensor compatibility, eliminating the need for cutting, drilling, or special tuning. This straightforward installation process makes it an excellent choice for engine builders looking to upgrade their bottom end with minimal hassle.

What's Included

• One Manley 4340 forged crankshaft with 4.050" stroke
• Integrated 32 tooth reluctor wheel

Ideal For

This forged crankshaft is perfect for performance enthusiasts and engine builders upgrading Chrysler 5.7L or 6.1L HEMI engines. It suits a variety of applications, including high-performance street vehicles, track cars, and high-output daily drivers that demand enhanced strength and reliability under increased power levels.

Fitment

• 2003–2008 Chrysler 300C 5.7L HEMI
• 2003–2008 Dodge Challenger 5.7L HEMI
• 2003–2008 Dodge Charger 5.7L HEMI
• 2003–2008 Dodge Magnum 5.7L HEMI
• 2003–2008 Jeep Commander 5.7L HEMI
• 2003–2008 Jeep Wagoneer 5.7L HEMI
• 2003–2008 Ram 1500 5.7L HEMI
• 2003–2008 Ram 2500 5.7L HEMI
• 2003–2008 Ram 3500 5.7L HEMI
• 2005–2010 Chrysler 300C 6.1L SRT8
• 2005–2010 Dodge Challenger 6.1L SRT8
• 2005–2010 Dodge Charger 6.1L SRT8
• 2005–2010 Dodge Magnum 6.1L SRT8
• 2005–2010 Jeep Grand Cherokee 5.7L HEMI
• 2005–2010 Jeep Grand Cherokee 6.1L SRT8

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.