Carrillo Pro-H Connecting Rods

2003–2025 Dodge Ram 1500 / 2500 / 3500, 2004–2025 Dodge Durango, 2005–2025 Chrysler 300, 2005–2008 Dodge Magnum, 2005–2025 Jeep Grand Cherokee, 2006–2025 Dodge Charger / Jeep Commander, 2008–2025 Dodge Challenger Hemi 5.7L/6.1L 6.125in

CR5378-8

Overview:

The Carrillo Pro-H 3/8 WMC Bolt Connecting Rods are precision-engineered performance components designed specifically for Chrysler and Dodge Hemi V8 engines, including the 5.7L and 6.1L variants. This set of eight rods offers a direct-fit upgrade for a wide range of vehicles such as the Dodge Ram trucks, Durango, Charger, Challenger, Jeep Grand Cherokee, and more, covering model years from 2003 through 2025.

Built for enthusiasts and professional builders seeking enhanced strength and durability, these connecting rods provide a reliable foundation for high-performance and forced induction applications. Whether you are upgrading a stock engine or building a high-horsepower powerplant, Carrillo’s Pro-H rods deliver the toughness and precision needed to withstand increased power and RPM demands.

Key Features:

Engineered with advanced materials and manufacturing techniques, the Carrillo Pro-H connecting rods offer numerous benefits for serious performance builds:

• Constructed from high-strength 4340 chromoly steel for superior fatigue resistance
• 3/8-inch WMC (Wide Male Cap) bolts for enhanced clamping force and durability
• 6.125-inch center-to-center length optimized for Chrysler Hemi 5.7L and 6.1L engines
• Precision CNC machining ensures exact tolerances and perfect fitment
• Shot-peened and stress-relieved to improve longevity under extreme conditions
• Compatible with factory pistons and bearings for straightforward installation
• Set of eight rods included, covering all cylinders in V8 configurations
• Designed to handle high horsepower and torque levels in naturally aspirated and forced induction setups

Construction & Design:

Carrillo’s Pro-H rods are forged from premium 4340 chromoly steel, a material renowned for its excellent strength-to-weight ratio and resistance to fatigue. The rods undergo a rigorous heat treatment process to maximize toughness and durability. The use of 3/8-inch WMC bolts provides superior clamp load compared to standard bolts, reducing the risk of fastener failure during high-stress operation.

The rods feature a fully machined beam and cap, ensuring precise alignment and balance. Shot peening and stress-relieving treatments further enhance the rods’ ability to withstand repeated high-RPM cycles without deformation or cracking. This meticulous construction guarantees reliability in demanding racing or street performance environments.

Installation & Fitment:

These connecting rods are designed as direct replacements for factory rods in compatible Chrysler and Dodge Hemi engines, requiring no modifications to the block or pistons. Installation should be performed by a qualified engine builder or technician to ensure proper torque specifications and clearances are met. The rods fit a broad range of vehicles including Dodge Ram 1500, 2500, and 3500 models (2003–2025), Dodge Durango (2004–2025), Chrysler 300 (2005–2025), Dodge Magnum (2005–2008), Jeep Grand Cherokee (2005–2025), Dodge Charger (2006–2025), Jeep Commander (2006–2025), and Dodge Challenger (2008–2025).

What's Included:

• Set of 8 Carrillo Pro-H 3/8 WMC Bolt Connecting Rods
• High-strength 3/8-inch WMC bolts pre-installed

Ideal For:

This connecting rod set is ideal for performance enthusiasts, engine builders, and racers upgrading or rebuilding Chrysler and Dodge Hemi V8 engines. It suits naturally aspirated builds as well as forced induction applications such as supercharged or turbocharged setups. Whether building a street performance engine or a track-focused powerplant, these rods provide the strength and reliability needed to handle increased power and RPM.

CP-Carrillo is a respected manufacturer of performance engine internals, producing high-quality connecting rods and pistons for demanding street and motorsport applications. With a legacy rooted in no-compromise rod design and proven use in high-output builds, CP-Carrillo parts are chosen when strength, consistency, and precision matter most inside the engine.