Wiseco Professional Series Forged Piston Set

2011–2024 Chrysler 300, Dodge Challenger, Dodge Charger, Dodge Durango, Jeep Grand Cherokee, Jeep Grand Wagoneer, Jeep Wrangler, Ram 2500, Ram 3500 6.4L 392 HEMI

Part #: K0398X05

Overview

The Wiseco Professional Series Forged Piston Set is engineered specifically for the Chrysler 6.4L Gen III HEMI engine, delivering exceptional strength and durability for high-performance and racing applications. Crafted for serious engine builders and racers, these pistons are designed to withstand the extreme pressures and thermal stresses encountered in severe duty race environments.

Whether you are assembling a high-output race engine or upgrading your performance build, this piston set offers reliable, precision-engineered components that enhance combustion efficiency and engine longevity. With premium piston rings included, the set ensures excellent sealing and oil control for sustained performance.

Key Features

Wiseco’s Professional Series pistons incorporate advanced design and manufacturing techniques to meet the demanding needs of Chrysler 6.4L Gen III HEMI builds:

• Forged from high-strength aluminum alloy for superior durability and resistance to thermal and mechanical stress
• Precisely sized with a 4.095-inch bore diameter to match factory specifications
• Compression height of 1.125 inches for optimal piston-to-cylinder head clearance and combustion chamber volume
• Equipped with a robust 0.927-inch wrist pin diameter for enhanced pin strength and stability under high loads
• Includes premium piston rings to reduce blow-by and improve oil control
• Designed for heavy-duty race builds with superior fatigue resistance and thermal management
• Set of 8 pistons, ideal for complete V8 engine rebuilds or upgrades
• Compatible with 6.125-inch connecting rods and standard engine assembly procedures

Construction & Design

Wiseco’s Professional Series pistons are manufactured using state-of-the-art forging processes that create a dense, uniform grain structure for maximum strength and durability. The forged aluminum alloy construction offers an excellent strength-to-weight ratio, reducing reciprocating mass to improve engine response and efficiency.

Each piston features precise dimensional tolerances and a reinforced pin boss design to ensure consistent fitment and long-lasting performance under extreme racing conditions. The design optimizes thermal management to maintain structural integrity during high-temperature operation.

Installation & Fitment

This piston set is engineered for direct fitment in Chrysler 6.4L Gen III HEMI engines from 2011 through 2024, including models such as the Chrysler 300, Dodge Challenger, Charger, Durango, Jeep Grand Cherokee, Grand Wagoneer, Wrangler, and Ram 2500/3500. Installation follows standard engine assembly procedures and is recommended for professional or experienced engine builders.

The pistons are designed to work with 6.125-inch connecting rods and a 4.095-inch bore size, typically requiring no modifications to the engine block or rods when used within specified build parameters.

What's Included

• Set of 8 forged aluminum pistons
• Premium piston rings installed or included

Ideal For

This piston set is ideal for professional racers and engine builders focused on heavy-duty, high-performance Chrysler 6.4L Gen III HEMI builds. It is perfectly suited for severe duty race applications requiring maximum strength and durability, as well as performance enthusiasts upgrading their engine internals for increased power and reliability.

Wiseco is a forged piston and engine-components brand trusted in both automotive and powersports performance, offering precision-made pistons and kits for high-RPM, high-boost, and high-load builds. Whether you’re rebuilding for durability or chasing serious horsepower, Wiseco parts are chosen for strength, consistency, and proven performance in demanding conditions.