Eagle Competition Rotating Assemblies Kit

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

231503937

Overview:

The Eagle Competition Rotating Assemblies Kit is engineered for serious enthusiasts and professional builders seeking a reliable, high-quality rotating assembly for Chrysler, Dodge, Jeep, and Ram Hemi engines. Designed to fit a broad range of 5.7L to 6.4L Hemi models, including the 6.1L SRT8, 6.4L 392, and 6.2L Hellcat & Trackhawk, this kit provides the essential internal components needed to build or rebuild a performance engine with confidence.

Built to exacting standards, this kit offers a solid foundation for increased displacement and durability, making it ideal for street performance, racing, or heavy-duty applications. Whether upgrading or replacing worn components, the Eagle Competition kit delivers precision and strength to support your engine’s power goals.

Key Features:

This rotating assembly kit combines premium materials and proven designs to ensure durability and performance:

• Forged 4340 steel crankshaft for superior strength and fatigue resistance
• Forged aluminum pistons with flat tops and two valve reliefs for optimal combustion chamber clearance
• H-beam forged 4340 steel connecting rods, 6.125 inches center-to-center length
• Pistons and rings oversized by 0.020 inches (0.510 mm) for precise bore fitment
• Plasmamoly piston ring facing material for enhanced wear resistance and sealing
• Floating wrist pins for reduced friction and reliable piston articulation
• Includes rod and main bearings at stock undersize dimensions for direct replacement
• Designed for use with a 32-tooth reluctor wheel for compatibility with factory ignition systems
• Balanced internally (note: assembly is not externally balanced)

Construction & Design:

The Eagle Competition kit is crafted using high-grade materials to withstand the rigors of high-performance operation. The forged 4340 steel crankshaft and connecting rods provide exceptional tensile strength and durability, essential for handling increased horsepower and torque. The forged aluminum pistons are designed with flat tops and valve reliefs to optimize combustion efficiency while maintaining clearance for high-lift camshafts.

The piston rings feature plasmamoly facing, a material known for its excellent wear resistance and ability to maintain a tight seal under extreme conditions. Oversized pistons and rings ensure a precise fit in bores measuring 3.937 inches (100 mm), accommodating engine rebuilds requiring a 0.020-inch bore increase. This attention to detail in component selection and machining guarantees a robust and reliable rotating assembly.

Installation & Fitment:

This kit is designed for direct fitment in most Chrysler, Dodge, Jeep, and Ram Hemi engines ranging from 5.7L to 6.4L, including performance variants such as the 6.1L SRT8, 6.4L 392, and 6.2L Hellcat & Trackhawk. Installation requires standard engine rebuilding procedures and is best performed by experienced technicians or professional engine builders. Note that the kit does not include camshaft, lifters, timing components, or gaskets, so these must be sourced separately.

It is intended for use with a 32-tooth reluctor wheel and does not include harmonic balancer, flexplate, or flywheel. Proper balancing and assembly techniques are essential to ensure optimal engine performance and longevity.

What's Included:

• Forged 4340 steel crankshaft
• Forged aluminum flat-top pistons with two valve reliefs
• Forged 4340 steel H-beam connecting rods (6.125" center-to-center)
• Piston rings with plasmamoly facing
• Rod bearings (stock undersize)
• Main bearings (stock undersize)

Ideal For:

This rotating assembly kit is ideal for engine builders and performance enthusiasts who require a durable, high-quality foundation for building or rebuilding Chrysler Hemi engines. It suits applications ranging from street performance upgrades to competitive racing builds, especially where increased displacement and reliability are priorities. The kit’s compatibility with multiple Hemi variants makes it a versatile choice for a wide range of Mopar performance projects.

Eagle Specialty Products manufactures high-strength engine components—most notably connecting rods and crankshafts—intended for performance and racing engines. These rotating-assembly upgrades are commonly used in builds that demand higher strength margins for boost, nitrous, sustained RPM, or competition use.