Manley Performance H Tuff Connecting Rod Set

2003–2024 Chrysler 300, Dodge Challenger, Charger, Durango, Magnum, Jeep Commander, Grand Cherokee, Wagoneer, Wrangler, Ram 1500/2500/3500 5.7L / 6.1L / 6.4L HEMI V8

Part #: 15056R-8

Overview

The Manley H Tuff Series Connecting Rod Set is a precision-engineered upgrade designed specifically for Chrysler HEMI V8 engines, including the 5.7L, 6.1L, and 6.4L variants. Built to meet the demands of performance enthusiasts and engine builders alike, these rods offer a robust balance of strength, durability, and value. Whether you are assembling a high-performance street machine or a track-ready build, the H Tuff rods provide the reliability and quality needed to support increased horsepower and torque levels.

Manufactured by Manley Performance, a trusted name in premium engine components, this set of eight rods includes ARP 2000 bolts for secure fastening and long-lasting durability under extreme conditions. The H Tuff Series is an ideal solution for those seeking a dependable upgrade without the premium price tag of Manley’s top-tier lines.

Key Features

These connecting rods are engineered to deliver dependable performance and enhanced strength for Chrysler HEMI engines. Key features include:

• H-beam design optimized for superior strength and reduced weight, improving engine reliability at high RPMs
• 6.125-inch length tailored for 5.7L, 6.1L, and 6.4L HEMI engine configurations
• Forged from high-quality steel alloy for excellent fatigue resistance and long service life
• .927-inch wrist pin bore for precise fitment and smooth piston articulation
• Includes premium ARP 2000 connecting rod bolts, known for exceptional tensile strength and stretch control
• Meticulously machined to exacting tolerances for balanced performance and straightforward installation
• Compatible with both stock and aftermarket pistons designed for H-beam rods of this specification
• Ideal for builds requiring enhanced rod strength without excessive weight gain

Construction & Design

The Manley H Tuff rods are forged from a high-grade steel alloy, providing a solid foundation capable of withstanding the rigors of boosted, nitrous-assisted, or naturally aspirated applications. The H-beam configuration offers an excellent strength-to-weight ratio, reducing rotating mass while maintaining the rigidity necessary to handle increased power and RPM.

Precision CNC machining ensures consistent dimensions and smooth surface finishes, which contribute to improved bearing life and overall engine smoothness. The inclusion of ARP 2000 bolts adds a critical layer of reliability, as these bolts maintain clamping force under extreme conditions, minimizing the risk of rod failure during high-stress operation.

Installation & Fitment

This connecting rod set is designed as a direct factory replacement for Chrysler HEMI 5.7L, 6.1L, and 6.4L V8 engines from 2003 through 2024. Installation follows standard engine assembly procedures and requires proper torque specifications for the included ARP 2000 bolts. No modifications to the engine block or pistons are necessary when using compatible components.

The set includes eight rods, sufficient for a complete V8 engine rebuild or upgrade. It is compatible with OEM wrist pins and pistons designed for a .927-inch pin bore, allowing for a straightforward swap without cutting, drilling, or special tuning.

What's Included

• Set of 8 Manley H Tuff Series H-beam connecting rods, 6.125-inch length
• ARP 2000 high-strength connecting rod bolts pre-installed

Ideal For

This connecting rod set is perfect for performance enthusiasts upgrading Chrysler HEMI engines for street or track use. It suits engine builders seeking a durable, cost-effective solution that supports increased horsepower and torque. The H Tuff rods are also ideal for rebuilds or upgrades of 5.7L, 6.1L, and 6.4L HEMI V8 engines requiring enhanced rod strength without excessive weight penalties.

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.