SCAT Modern Muscle Engine Rotating Assembly Kit

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

1-48501BI

Overview:

The SCAT Modern Muscle Engine Rotating Assembly Kit is a precision-engineered solution designed for enthusiasts and builders looking to upgrade or rebuild their Chrysler, Dodge, Jeep, or Ram Hemi engines ranging from 5.7L to 6.4L. This kit provides a complete rotating assembly that balances durability, performance, and reliability, making it ideal for street performance, mild racing, or high-performance rebuild projects. Crafted to exacting standards, it ensures optimal engine balance and longevity while supporting increased power output and engine efficiency.

Whether you are restoring a classic muscle car or building a modern performance machine, this kit offers a robust foundation with forged components that stand up to demanding conditions and deliver consistent results.

Key Features:

This rotating assembly kit combines high-quality materials and expert engineering to enhance your engine’s performance and durability. Key features include:

• Complete rotating assembly designed for 6.0L/368 engine displacement with a 3.927-inch bore and 3.795-inch stroke
• Forged 4340 steel crankshaft for superior strength and fatigue resistance
• Forged aluminum pistons with a dished design and two valve reliefs, featuring a +13.80cc piston head volume for optimized combustion
• Floating wrist pins and plasmamoly piston rings included for enhanced wear resistance and sealing
• Forged 4340 steel I-beam connecting rods measuring 6.125 inches center to center for excellent rigidity and durability
• Balanced internal engine components to reduce vibration and improve engine smoothness
• Includes rod and main bearings at stock undersize dimensions for precise fitment
• Sold as a complete kit to simplify engine assembly and ensure component compatibility

Construction & Design:

SCAT’s rotating assembly kit is built with premium forged materials to withstand the rigors of high-performance applications. The crankshaft is crafted from forged 4340 steel, known for its exceptional toughness and resistance to stress and fatigue. The connecting rods also utilize forged 4340 steel with an I-beam design, providing a perfect balance of strength and weight savings.

The pistons are forged aluminum with a dished top and two valve reliefs, designed to optimize combustion chamber shape and clearance. Plasmamoly piston rings enhance durability and maintain excellent sealing under high temperatures and pressures. The entire assembly is internally balanced to reduce engine vibrations and improve longevity.

Installation & Fitment:

This rotating assembly kit is engineered to fit a wide range of Chrysler, Dodge, Jeep, and Ram Hemi engines, including the 5.7L Hemi, 6.1L SRT8, 6.4L 392, and 6.2L Hellcat & Trackhawk models. Installation requires standard engine rebuild procedures and precise machining to ensure proper clearances and fitment. It is recommended to have professional engine building experience or consult with a qualified engine builder to achieve optimal results.

Note that this kit does not include camshaft, lifters, timing components, gaskets, or oil pump, so those must be sourced separately based on your specific build requirements.

What's Included:

• Forged 4340 steel crankshaft
• Forged aluminum pistons with valve reliefs
• Forged 4340 steel I-beam connecting rods
• Floating wrist pins
• Plasmamoly piston rings
• Rod bearings (stock undersize)
• Main bearings (stock undersize)

Ideal For:

This SCAT Modern Muscle Engine Rotating Assembly Kit is ideal for performance enthusiasts, engine builders, and restorers who demand a reliable, high-quality rotating assembly for their Chrysler, Dodge, Jeep, or Ram Hemi engines. It suits street performance builds, mild to moderate racing applications, and any project requiring a durable foundation for increased power and engine longevity.

SCAT Crankshafts is part of the enthusiast aftermarket, offering components and accessories tailored to drivers who demand more from their vehicles. Their catalog supports everything from maintenance refreshes to performance-oriented upgrades, with a focus on quality and compatibility across popular platforms. If you’re building for the street with an eye toward track performance, SCAT Crankshafts is a solid option.