CP Pistons Rod Set

2003–2025 Chrysler 300, 300C, Dodge Challenger, Charger, Dakota, Durango, Magnum, Ram 1500/2500/3500, Jeep Commander, Grand Cherokee, Wagoneer 5.7L HEMI

Part #: BH57-1075-040

Overview

The CP Pistons Rod Set is engineered specifically for Gen3 Dodge HEMI engines featuring a 3.957-inch bore and 4.080-inch stroke. This set of eight connecting rods is designed to provide exceptional strength and reliability for high-performance builds, whether you are rebuilding your engine or upgrading for enhanced durability. Crafted for serious enthusiasts and professional engine builders, these rods maintain factory geometry while delivering the robustness needed for elevated RPMs and power levels.

Manufactured by CP Pistons, a trusted leader in precision engine components, this rod set offers a perfect balance of strength, weight, and durability. It supports balanced power delivery in V8 configurations and is compatible with both factory and aftermarket pistons and crankshafts, making it an ideal upgrade for street performance, racing, and engine rebuild applications.

Key Features

CP Pistons connecting rods combine advanced engineering with premium materials to meet the demands of high-output Gen3 Dodge HEMI engines. Key features include:

• Set of 8 rods designed specifically for 3.957" bore and 4.080" stroke Gen3 Dodge HEMI engines
• Precision-machined for exact fit and optimal engine performance
• High-strength steel alloy construction to withstand elevated RPM and power levels
• Balanced for smooth engine operation and reduced vibration
• Compatible with factory and aftermarket pistons and crankshafts
• Maintains proper rod length and geometry for reliable operation
• Finished with protective coatings to resist wear and corrosion
• Ideal for racing, street performance, and engine rebuilds

Construction & Design

Each connecting rod is forged from premium-grade steel alloy selected for superior tensile strength and fatigue resistance. The rods undergo rigorous forging and heat treatment processes to ensure durability under extreme conditions commonly encountered in high-performance engines. Precision CNC machining guarantees tight tolerances and consistent dimensions, critical for maintaining engine balance and longevity.

The design incorporates optimized beam profiles that reduce weight without compromising strength, enhancing engine responsiveness and efficiency. Durable bearing surfaces and high-quality rod bolts are included to withstand the stresses of high-RPM operation, ensuring long-lasting reliability in demanding applications.

Installation & Fitment

The CP Pistons Rod Set is designed for direct fitment to Gen3 Dodge HEMI engines with a 3.957" bore and 4.080" stroke, covering a wide range of 5.7L HEMI-equipped vehicles from 2003 through 2025. Installation requires standard engine assembly procedures and should be performed by a qualified technician or experienced engine builder. Proper torque specifications and assembly techniques must be followed to ensure optimal performance and reliability without the need for modifications.

What's Included

• Set of 8 CP Pistons connecting rods
• High-quality rod bolts for secure fastening
• Installation instructions and specifications

Ideal For

This rod set is perfect for engine builders, racers, and performance enthusiasts upgrading or rebuilding Gen3 Dodge HEMI 5.7L engines. It suits applications ranging from street performance to competitive racing where strength, reliability, and precision are paramount. If you demand a robust connecting rod solution that maintains factory geometry while enhancing durability, the CP Pistons Rod Set is an excellent choice for your high-performance build.

CP Pistons (CP‑Carrillo) manufactures high-performance engine internals for serious builds, specializing in pistons engineered for demanding street and racing use. With an emphasis on precision manufacturing, their pistons are commonly chosen for boosted, high-compression, and competition applications where strength, consistency, and ring seal matter.