Eagle Forged 4340 Steel H-Beam Connecting Rods

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

6125SO3D-1

Overview:

The Eagle Forged 4340 Steel H-Beam Connecting Rods are precision-engineered performance components designed to upgrade and reinforce the bottom end of your Chrysler, Dodge, Jeep, or Ram Hemi engine. Compatible with a wide range of 5.7L to 6.4L Hemi engines, including the 6.1L SRT8, 6.4L 392, and the supercharged 6.2L Hellcat and Trackhawk models, these rods provide exceptional strength and durability for high-horsepower applications.

Built for enthusiasts and professional builders alike, these connecting rods are ideal for those seeking to push their engines to higher power levels while maintaining reliability and precision. Whether you are building a street performance machine or a race-ready engine, Eagle’s forged rods offer the strength and consistency needed to handle demanding conditions.

Key Features:

These connecting rods incorporate advanced design and materials to deliver superior performance and reliability:

• Constructed from forged 4340 steel for maximum strength and fatigue resistance
• H-beam design optimizes strength-to-weight ratio for improved durability
• Center-to-center length of 6.125 inches, suitable for stroker engine builds
• Floating wrist pin style with a 0.927-inch end bore diameter for precise piston articulation
• Big end bore diameter of 2.1250 inches with a 2.000-inch rod journal diameter
• Shot-peened finish enhances fatigue life and surface durability
• Cap retention via high-strength ARP 8740 chromoly steel 7/16-inch cap screws with 180,000 psi tensile strength
• Weight-matched sets (~660 grams per rod) ensure engine balance and smooth operation
• Clearanced for stroker applications, allowing for custom engine builds
• Magnafluxed to detect internal flaws and ensure structural integrity

Construction & Design:

Each connecting rod is forged from premium 4340 chromoly steel, a material renowned for its toughness and resistance to stress and fatigue. The H-beam configuration provides an optimal balance between rigidity and weight, reducing the risk of rod flex or failure under high RPM and horsepower conditions. The rods are meticulously shot-peened to improve surface hardness and fatigue resistance, while magnaflux inspection guarantees flaw-free construction.

High-quality ARP cap screws secure the rod caps, featuring a 12-point head style for reliable torque application and exceptional tensile strength. The floating wrist pin design allows for smooth piston movement, reducing wear and enhancing engine longevity. These rods are engineered to meet the demands of both naturally aspirated and forced induction Hemi engines.

Installation & Fitment:

These connecting rods are designed to fit 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 and Trackhawk models. Installation requires standard engine assembly procedures, but note that some engine blocks may require clearancing to accommodate these rods, especially in stroker builds.

Sold individually, these rods allow for flexible ordering to match your engine’s specific needs. Proper balancing and professional installation are recommended to ensure optimal engine performance and reliability.

What's Included:

• One Eagle Forged 4340 Steel H-Beam Connecting Rod
• High-strength ARP 8740 chromoly steel cap screws
• Shot-peened and magnafluxed rod for quality assurance

Ideal For:

These connecting rods are perfect for engine builders, performance enthusiasts, and racers who demand high strength and reliability from their bottom-end components. They are especially suited for:

• High-performance street builds
• Forced induction and naturally aspirated engines
• Stroker engine configurations
• Track and drag racing applications
• Engine rebuilds requiring upgraded connecting rods

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.