Wiseco Professional Series Pistons

2005–2010 Chrysler 300C, 2006–2010 Dodge Charger, 2006–2008 Dodge Magnum, 2006–2010 Jeep Grand Cherokee, 2008–2010 Dodge Challenger 6.1L SRT8

Part #: 6469RX05

Overview

The Wiseco Professional Series forged piston is engineered for high-performance applications, specifically tailored for the 6.1L SRT8 engines found in select Chrysler, Dodge, and Jeep models from 2005 to 2010. Designed with serious racers and engine builders in mind, these pistons deliver exceptional strength and durability to withstand the rigors of heavy-duty and severe race conditions. Featuring a -6.5cc reverse dome design and a 4.060-inch bore size, these pistons help optimize combustion efficiency and power output while maintaining reliability under extreme stress.

Wiseco’s Professional Series pistons come equipped with premium piston rings and incorporate advanced manufacturing techniques to ensure consistent performance and longevity. Whether you are building a high-horsepower street machine or a dedicated race engine, these pistons provide the foundation for pushing your build beyond conventional limits.

Key Features

Wiseco Professional Series pistons combine cutting-edge technology and race-proven design elements to meet the demands of severe-duty applications. Key features include:

• Forged 2618 aluminum alloy construction for superior strength and fatigue resistance
• Reverse dome (-6.5cc) design to optimize compression ratio and combustion chamber shape
• Precision CNC machining for exact bore and ring groove tolerances
• Premium piston rings included for enhanced sealing and reduced blow-by
• Designed specifically for 4.060-inch bore size engines
• Compatible with 2005–2010 Chrysler 300C, 2006–2010 Dodge Charger, 2006–2008 Dodge Magnum, 2006–2010 Jeep Grand Cherokee, and 2008–2010 Dodge Challenger 6.1L SRT8 models
• Engineered to withstand heavy to severe duty race conditions
• Optimized for high RPM strength and thermal stability

Construction & Design

Wiseco’s Professional Series pistons are crafted from premium 2618 forged aluminum alloy, known for its excellent strength-to-weight ratio and resistance to thermal expansion. This material choice ensures the pistons maintain structural integrity under high combustion pressures and elevated temperatures typical of race engines. The reverse dome design reduces combustion chamber volume by 6.5cc, increasing compression ratio and improving combustion efficiency for enhanced power delivery.

Each piston undergoes precision CNC machining to achieve tight tolerances on skirt dimensions, ring grooves, and pin bores, ensuring optimal fit and minimal friction. The pistons are also stress-relieved and shot-peened to improve fatigue life and durability, making them ideal for engines subjected to extreme loads and RPMs.

Installation & Fitment

These pistons are direct replacements designed to fit the factory bore size of 4.060 inches in the specified 6.1L SRT8 engines. Installation requires standard engine assembly procedures, including proper ring end gap setting and piston orientation. Due to the reverse dome design, it is important to verify piston-to-head clearance and compression ratio compatibility with your specific build. Professional installation is recommended to ensure optimal performance and reliability.

What's Included

• Set of Wiseco Professional Series forged pistons (-6.5cc reverse dome, 4.060in bore)
• Premium piston rings pre-installed or included separately

Ideal For

These pistons are ideal for serious engine builders and racers who demand maximum durability and performance from their 6.1L SRT8 engines. They are well-suited for high-horsepower street builds, drag racing, road racing, and other motorsport applications where engine stress is significantly elevated. If you are upgrading your engine for increased boost, higher compression, or extended high-RPM operation, Wiseco Professional Series pistons provide a reliable foundation for your build.

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.