Callies Mopar Gen III Cast Iron Engine Block

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

05045475AG

Overview:

The Callies Mopar Gen III Cast Iron Engine Block is a direct replacement engine block designed for high-performance Mopar Hemi Gen III engines. Compatible with 5.7L Hemi, 6.1L SRT8, 6.4L 392, and 6.2L Hellcat & Trackhawk engines, this OEM-style block offers durability and reliability for enthusiasts and builders seeking a robust foundation for their powertrain. Crafted from cast iron, it provides excellent strength and wear resistance, making it ideal for both street and track applications.

Whether you are rebuilding a factory engine or assembling a custom performance build, this engine block serves as a solid base engineered to meet the demanding standards of Mopar’s Gen III Hemi lineup. It is perfect for those who require a dependable block that maintains factory dimensions and fitment without compromise.

Key Features:

Designed to meet OEM specifications, the Callies Mopar Gen III Cast Iron Engine Block offers a range of features that ensure compatibility and performance:

• Material: Durable cast iron construction for enhanced strength and longevity
• Main Journal Type: Mopar Hemi Gen III standard configuration
• Engine Block Style: OEM replacement with standard deck height of 9.250 inches
• Cylinder Bore Diameter: 4.090 inches as shipped, ready for custom boring and honing
• Camshaft Location: Standard factory placement for seamless integration
• Main Bolt Style: 2-bolt main caps (main caps and fasteners not included)
• Rear Main Seal Style: One-piece rear main seal design for reliable sealing
• Finished Cylinder Bores: Not finished, allowing builders to customize bore size
• Freeze Plugs and Cam Bearings: Not included, enabling tailored component selection
• Non-Remanufactured: Brand new block ensuring uncompromised integrity

Construction & Design:

This engine block is crafted from high-grade cast iron, chosen for its superior wear resistance and ability to withstand high combustion pressures and temperatures. The standard deck height of 9.250 inches maintains factory geometry, ensuring compatibility with existing Mopar Gen III components such as heads, gaskets, and rotating assemblies.

The block’s design preserves the original camshaft location and main journal configuration, facilitating straightforward installation and minimizing the need for custom modifications. Its robust construction supports high-performance builds, including forced induction and naturally aspirated applications.

Installation & Fitment:

The Callies Mopar Gen III Cast Iron Engine Block is engineered as a direct fit replacement for 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 standard engine assembly procedures, including boring, honing, and fitting of internal components such as pistons, bearings, and camshaft.

Note that main caps, fasteners, bearings, freeze plugs, and cam bearings are not included and must be sourced separately. This allows builders to customize their assembly to specific performance goals and preferences.

What’s Included

• One (1) Callies Mopar Gen III Cast Iron Engine Block

Ideal For:

This engine block is ideal for performance enthusiasts, engine builders, and professional shops looking to rebuild or upgrade Mopar Gen III Hemi engines. It suits applications ranging from street performance to track use, providing a durable and reliable foundation for high-horsepower builds.

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.