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 #: 6471RX05

Overview

The Wiseco Professional Series Piston with a +4cc dome and 4.060-inch bore diameter is engineered for high-performance applications in the 6.1L SRT8 engines found in select Chrysler, Dodge, and Jeep models from 2005 to 2010. These forged racing pistons are crafted for serious racers and engine builders who demand uncompromising strength, durability, and precision. Designed to withstand the rigors of heavy to severe duty race builds, the Professional Series pistons deliver reliable performance under extreme conditions.

Wiseco’s Professional Series pistons come equipped with premium piston rings and incorporate advanced design features to maximize engine efficiency and longevity. Whether you are upgrading a factory engine or building a high-output race motor, these pistons provide the foundation for enhanced power and durability.

Key Features

Wiseco’s Professional Series pistons combine advanced engineering with race-proven technology to meet the demands of high-performance builds. Key features include:

• Forged from high-strength aluminum alloy for superior durability and heat resistance
• +4cc dome design to increase compression ratio and optimize combustion
• Precision CNC machining for exact bore and dome dimensions ensuring perfect fitment
• Premium piston rings included for improved sealing and reduced blow-by
• Designed specifically for the 6.1L HEMI SRT8 engine platform
• Enhanced skirt coatings to reduce friction and wear
• Balanced for high RPM stability and reduced vibration
• Compatible with heavy-duty race builds and street performance applications

Construction & Design

Each Wiseco Professional Series piston is forged from aerospace-grade aluminum alloy, delivering an optimal balance of strength and lightweight performance. The forging process refines the grain structure of the metal, resulting in pistons that resist cracking and deformation under extreme heat and pressure. The +4cc dome shape is carefully engineered to increase the combustion chamber volume, improving compression and power output without compromising reliability.

Advanced CNC machining ensures tight tolerances and consistent dimensions, critical for maintaining proper piston-to-cylinder wall clearance and ring sealing. Additionally, Wiseco applies specialized skirt coatings to reduce friction and wear, extending piston life and improving engine efficiency. These pistons are designed to meet the demands of severe duty racing environments while maintaining compatibility with OEM components.

Installation & Fitment

These Wiseco Professional Series pistons are direct replacements for the factory pistons in the 6.1L SRT8 engines found in the 2005–2010 Chrysler 300C, 2006–2010 Dodge Charger, 2006–2008 Dodge Magnum, 2006–2010 Jeep Grand Cherokee, and 2008–2010 Dodge Challenger. Installation requires standard engine rebuild procedures and precise measurement to ensure proper ring end gap and piston-to-wall clearance. Professional installation is recommended to guarantee optimal performance and longevity.

What's Included

• Set of forged Wiseco Professional Series pistons with +4cc dome
• Premium piston rings pre-installed or included separately
• Technical documentation and installation guidelines

Ideal For

This piston set is ideal for performance enthusiasts, professional racers, and engine builders upgrading or rebuilding the 6.1L SRT8 HEMI engine. It suits applications ranging from high-performance street vehicles to dedicated race cars requiring enhanced durability and power capacity. If you are seeking to push your engine’s limits with a reliable, race-proven piston design, Wiseco’s Professional Series is an excellent choice.

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.