Manley Performance Pro Series I-Beam Connecting Rod Set

2003–2024 Chrysler 300, Dodge Challenger, Dodge Charger, Dodge Magnum, Jeep Commander, Jeep Grand Cherokee, Ram 1500, Ram 2500 5.7L / 6.1L HEMI Engines

Part #: 14460R6-8

Overview

The Manley Pro Series I-Beam Connecting Rod Set is engineered to deliver superior strength and reliability for Chrysler 5.7L and 6.1L HEMI engines from 2003 through 2024. Designed for performance enthusiasts and professional engine builders, these rods provide a significant upgrade over factory components, enabling your engine to handle increased horsepower and torque with confidence. Whether building a high-performance street machine, a track-ready powerplant, or a dependable daily driver with enhanced power, these connecting rods offer exceptional durability and consistent performance.

By reducing reciprocating mass and improving engine balance, the Pro Series rods help your engine respond faster and more efficiently under demanding conditions, making them an ideal choice for both naturally aspirated and forced induction applications.

Key Features

Manley’s Pro Series I-Beam Connecting Rods incorporate advanced materials and precision manufacturing to ensure long-lasting performance and reliability:

• Constructed from high-strength steel alloy for maximum durability and fatigue resistance
• Precision CNC machining for exact tolerances and consistent weight, optimizing engine balance
• Equipped with 7/16-inch ARP Custom Age 625+ fasteners for superior clamping force under extreme stress
• I-beam design balances strength and weight, reducing overall reciprocating mass
• Lightweight 6.240-inch center-to-center length tailored specifically for Chrysler 5.7L and 6.1L HEMI engines
• Shot-peened and stress-relieved to enhance fatigue life and resist deformation
• Compatible with factory pistons and crankshafts for straightforward installation
• Engineered to withstand high RPM and boost levels, suitable for both forced induction and naturally aspirated builds

Construction & Design

Manufactured with a meticulous process including CNC machining, heat treating, and stress relieving, these connecting rods achieve exceptional strength and precision. The I-beam shape is carefully selected to provide excellent rigidity while minimizing weight, which reduces engine vibration and improves throttle response. Manley’s use of ARP Custom Age 625+ bolts ensures that the rods maintain clamping integrity under extreme loads, preventing fastener stretch or failure.

Additionally, the rods are shot-peened to improve surface finish and fatigue resistance, extending their service life in high-performance environments. This combination of design and material quality makes the Pro Series rods a reliable upgrade for demanding applications.

Installation & Fitment

These connecting rods are designed as a direct replacement for factory rods in Chrysler 5.7L and 6.1L HEMI engines, fitting perfectly without any modifications. They use OEM mounting points and hardware specifications, allowing for a straightforward bolt-on installation. No cutting, drilling, or special tuning is required, making them an ideal choice for engine builders seeking a reliable and efficient upgrade.

Compatible with factory pistons and crankshaft journals, these rods support a hassle-free installation process while delivering enhanced performance and durability.

What's Included

• Set of eight Manley Pro Series I-Beam connecting rods
• Pre-installed 7/16-inch ARP Custom Age 625+ rod bolts
• Installation instructions and specifications

Ideal For

• Performance enthusiasts upgrading Chrysler 5.7L or 6.1L HEMI engines
• Engine builders seeking durable, lightweight connecting rods for street or track use
• Forced induction and naturally aspirated applications requiring enhanced rod strength
• High-RPM and high-horsepower builds demanding reliable internal components

Manley Performance manufactures high-strength engine internals for serious builds—especially forged pistons, connecting rods, valves, and valvetrain components developed for racing and high-output street applications. If you’re building for boost, high compression, or sustained RPM, Manley is a common choice for parts engineered to take abuse and keep power reliable.