Callies Mopar Gen III Cast Iron Engine Block

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

S0033

Overview:

The Callies Mopar Gen III Cast Iron Engine Block is a premium replacement block engineered to fit a wide range of Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L to 6.4L Hemi engines, including high-performance variants like the 6.1L SRT8, 6.2L Hellcat, and 6.4L 392. Designed for enthusiasts and professional builders alike, this block offers a durable foundation for engine rebuilds or performance upgrades.

Constructed from robust cast iron, this engine block maintains OEM specifications while providing enhanced strength and reliability. It is ideal for those seeking a direct-fit solution that supports both street and track applications without compromising factory compatibility.

Key Features:

This Mopar Gen III engine block combines quality materials and precision engineering to meet the demands of high-performance builds. Key features include:

• Cast iron construction for superior durability and heat resistance
• OEM deck height of 9.750 inches ensuring proper piston-to-head clearance
• Finished cylinder bores with a standard diameter of 4.120 inches and maximum bore capacity up to 4.165 inches for overbore options
• Standard camshaft location compatible with Gen III Hemi configurations
• Includes billet steel main caps with 2-bolt main bolt style for enhanced crankshaft support
• Equipped with main studs and Energy main billet caps for improved block rigidity
• One-piece rear main seal design for reliable sealing and reduced oil leaks
• Freeze plugs included to protect against coolant expansion damage
• Compatible with factory and aftermarket components for straightforward installation

Construction & Design:

The engine block is crafted from high-grade cast iron, chosen for its excellent wear resistance and ability to withstand high combustion pressures. The block’s deck height and bore dimensions adhere strictly to OEM specifications, ensuring seamless integration with existing components and maintaining factory tolerances.

Billet steel main caps provide superior strength compared to standard cast caps, reducing flex and improving crankshaft stability under high load conditions. The inclusion of main studs further enhances the block’s structural integrity, making it well-suited for performance applications and forced induction setups.

Installation & Fitment:

This Callies Mopar Gen III engine block is designed as a direct replacement for most Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L to 6.4L Hemi engines, including the 6.1L SRT8, 6.2L Hellcat, and 6.4L 392 variants. It fits seamlessly with factory components, minimizing the need for modifications during installation.

While main bearings and cam bearings are not included, the block comes ready with finished cylinder bores and freeze plugs installed, simplifying the rebuild process. Professional installation is recommended to ensure proper torque specifications and assembly procedures are followed.

What's Included:

• Cast iron Mopar Gen III engine block
• Billet steel main caps with main cap fasteners
• Main studs for enhanced block rigidity
• Freeze plugs installed
• One-piece rear main seal

Ideal For:

This engine block is perfect for performance enthusiasts, engine builders, and professional shops looking to rebuild or upgrade Chrysler Gen III Hemi engines. It supports a wide range of applications, from daily drivers to high-performance street and track vehicles, including Mopar muscle cars and trucks requiring a reliable and strong foundation for their powerplants.

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.