SCAT Modern Muscle Engine Rotating Assembly

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

1-48505BI

Overview:

The SCAT Modern Muscle Engine Rotating Assembly is a precision-engineered short block designed to deliver reliable performance and durability for a wide range of Chrysler, Dodge, Jeep, and Ram vehicles equipped with Hemi engines. This assembly is ideal for enthusiasts and professional builders seeking a high-quality rotating assembly that supports engine rebuilds or upgrades from 5.7L to 6.4L displacement, including high-performance variants like the 6.2L Hellcat and 6.1L SRT8.

Built with forged components and balanced for smooth operation, this rotating assembly provides a solid foundation for increased power and engine longevity. It is perfect for those looking to maintain factory reliability while enhancing engine strength and responsiveness.

Key Features:

Designed with durability and performance in mind, the SCAT Modern Muscle Engine Rotating Assembly includes the following key features:

• Engine displacement: 6.2L (378 cubic inches) with a bore of 3.927 inches (99.746 mm) and a stroke of 3.900 inches
• Forged aluminum pistons with a dome design and trough for optimized combustion chamber dynamics
• Forged 4340 steel crankshaft and connecting rods for maximum strength and fatigue resistance
• Internal engine balance for smooth operation and reduced vibration
• Floating wrist pins and plasmamoly piston rings included for enhanced wear resistance and sealing
• Connecting rods feature a robust I-beam design with a length of 6.125 inches center to center
• Includes rod and main bearings at stock undersize dimensions for a precise fit
• Balanced assembly to ensure optimal engine performance and longevity
• Compatible with multiple Hemi engine variants including 5.7L, 6.1L, 6.4L, and 6.2L Hellcat configurations

Construction & Design:

The SCAT rotating assembly is crafted using premium materials and advanced manufacturing techniques. The forged 4340 steel crankshaft and connecting rods provide exceptional strength and durability under high-stress conditions, making them suitable for both street and track applications. The forged aluminum pistons are designed with a dome shape and trough to optimize combustion efficiency and reduce detonation risk.

Each component is precision balanced internally to minimize vibrations and ensure smooth engine operation. The use of plasmamoly piston ring facing material enhances ring life and sealing capability, contributing to improved compression and reduced oil consumption. This assembly is engineered to meet or exceed OEM specifications, providing a reliable upgrade path for muscle car enthusiasts.

Installation & Fitment:

This rotating assembly is designed as a direct fit for most Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L Hemi, 6.1L SRT8, 6.4L 392, and 6.2L Hellcat or Trackhawk engines. Installation requires standard engine rebuild procedures and should be performed by a qualified technician to ensure proper clearances and torque specifications. Note that this kit does not include camshaft, lifters, timing components, or gaskets, which must be sourced separately.

What's Included:

• Forged aluminum pistons with piston rings
• Forged 4340 steel crankshaft
• Forged 4340 steel I-beam connecting rods
• Rod bearings (stock undersize)
• Main bearings (stock undersize)

Ideal For:

This SCAT Modern Muscle Engine Rotating Assembly is ideal for engine builders, performance enthusiasts, and professional shops looking to rebuild or upgrade Chrysler Hemi engines with a focus on durability and performance. It suits applications ranging from street performance to moderate track use, providing a strong foundation for further engine modifications.

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.