Manley Performance Forged Crankshaft

Chrysler 5.7L HEMI V8

192958

Overview:

The Manley Chrysler 5.7L HEMI Forged Crankshaft is a high-quality replacement crankshaft designed to enhance the durability and performance of your engine. Crafted from premium 4340 alloy steel, this forged crankshaft is engineered to withstand the rigors of high-performance and demanding driving conditions.

Ideal for enthusiasts and engine builders seeking a reliable upgrade for their 5.7L HEMI-powered vehicles, this crankshaft supports increased power output and improved engine longevity. Whether you are building a street performance engine or a race-ready powerplant, the Manley forged crankshaft offers the strength and precision needed for dependable operation.

Key Features:

This forged crankshaft combines advanced materials and manufacturing techniques to deliver superior performance and reliability:

• Constructed from premium 4340 alloy steel for exceptional strength and fatigue resistance.
• Forged manufacturing process ensures superior grain structure and durability compared to cast components.
• 4.080 inch stroke length designed specifically for Chrysler 5.7L HEMI engines to optimize displacement and torque characteristics.
• Precision machined journals and bearing surfaces for excellent fitment and smooth engine operation.
• Compatible with a wide range of domestic engine applications, making it versatile for various build configurations.
• Engineered to handle increased horsepower and torque demands from performance modifications.
• Ideal for both street-driven and competition engines requiring a robust rotating assembly component.

Construction & Design:

The Manley forged crankshaft is manufactured using a high-grade 4340 alloy steel billet, known for its superior tensile strength and toughness. The forging process refines the metal grain structure, resulting in a crankshaft that resists cracking and deformation under high stress.

Each crankshaft is precision machined to exacting tolerances, ensuring optimal bearing clearances and smooth rotation. The 4.080 inch stroke is designed to maximize engine displacement while maintaining compatibility with factory components and clearances.

This crankshaft’s robust design supports aggressive cam profiles, higher RPM limits, and increased cylinder pressures, making it an excellent foundation for performance engine builds.

Installation & Fitment:

This crankshaft is a direct fit replacement for Chrysler 5.7L HEMI engines, designed to work with factory or aftermarket components without requiring modifications. It installs using standard procedures and mounting points, ensuring a straightforward upgrade path.

No cutting, drilling, or special tuning is required for installation, making it suitable for both professional engine builders and experienced enthusiasts.

What's Included:

• One forged 4340 alloy steel crankshaft with 4.080 inch stroke

Ideal For:

• Performance engine builders upgrading the rotating assembly
• Enthusiasts seeking increased strength and durability for their 5.7L HEMI engines
• Street and track applications requiring reliable high-RPM operation
• Rebuilds and custom engine projects demanding forged internal components

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.