Callies Compstar Forged 4340 Steel Crankshaft

Fits Chrysler, Dodge, Jeep, Ram 5.7L Hemi, 6.1L SRT8, 6.4L 392, 6.2L Hellcat & Trackhawk

YYK-E1Q-CS

Overview:

The Callies Compstar Forged 4340 Steel Crankshaft is engineered for high-performance applications in a wide range of Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L to 6.4L Hemi engines, including the 6.1L SRT8, 6.4L 392, and 6.2L Hellcat & Trackhawk models. Designed to withstand the rigors of aggressive driving and racing conditions, this crankshaft offers enhanced strength and durability compared to stock components. It is ideal for enthusiasts and professional builders seeking a reliable foundation for engine upgrades or rebuilds.

With a 3.800-inch stroke and forged from premium 4340 steel, this crankshaft delivers exceptional toughness and fatigue resistance. Its internal engine balance and lightened design contribute to smoother operation and improved engine response, making it a top choice for performance builds.

Key Features:

This crankshaft combines advanced materials and precision engineering to meet the demands of high-output Hemi engines. Key features include:

• Forged 4340 steel construction for superior strength and durability
• 3.800-inch stroke optimized for increased displacement and torque
• Internal engine balance for smooth and reliable operation
• Lightened design reduces rotating mass, enhancing throttle response
• Standard crankshaft snout style for compatibility with OEM components
• Requires narrow bearings for proper fitment
• Rod journal diameter of 2.100 inches and main journal diameter of 2.559 inches
• 1-piece rear main seal style for simplified sealing and maintenance
• Weight of approximately 52 lbs, balancing strength and performance

Construction & Design:

The Callies Compstar crankshaft is meticulously forged from 4340 chromoly steel, a material renowned for its high tensile strength and resistance to wear and fatigue. This forging process ensures a dense, uniform grain structure, providing enhanced durability under extreme loads. The crankshaft undergoes precision machining to exact tolerances, ensuring optimal journal finishes and dimensional accuracy for reliable bearing fitment and long service life.

Its internal balance design reduces vibrations and stress on engine components, contributing to smoother operation and improved longevity. The lightened crankshaft design minimizes rotational inertia, allowing the engine to rev more freely and respond quicker to throttle inputs.

Installation & Fitment:

This crankshaft is designed as a direct fit replacement for most Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L Hemi, 6.1L SRT8, 6.4L 392, and 6.2L Hellcat & Trackhawk engines. Installation requires the use of narrow bearings, which are not included, so ensure proper bearing selection for your build. Rod bearings and main bearings are also sold separately.

Professional installation is recommended to ensure proper torque specifications and clearances are met. The crankshaft’s standard snout style allows compatibility with factory harmonic balancers and timing components, simplifying the upgrade process.

What's Included:

• One forged 4340 steel crankshaft
• Mechanical and electrical failure coverage plan

Ideal For:

This crankshaft is perfect for performance enthusiasts, engine builders, and racers who demand a robust and reliable rotating assembly component for their Hemi-powered vehicles. Whether upgrading a street machine, building a drag racer, or restoring a high-performance engine, the Callies Compstar crankshaft provides the strength and precision needed to handle increased power and torque.

Callies Performance is known for high-end rotating-assembly components—especially crankshafts and connecting rods—built for serious horsepower and demanding race conditions. Focused on precision manufacturing and durability, Callies supports builders who need confidence at high RPM and high cylinder pressure, whether it’s drag racing, boosted street builds, or endurance-focused powerplants.