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 #: 6471LX05

Overview

The Wiseco Professional Series forged pistons are engineered for serious racers and high-performance builders who demand uncompromising strength and reliability. Designed specifically for the 6.1L SRT8 engines found in select Chrysler, Dodge, and Jeep models from 2005 to 2010, these pistons deliver exceptional durability under heavy and severe duty conditions. Featuring a +4cc dome design and a 4.060-inch bore size, they provide enhanced compression and combustion efficiency, making them ideal for race applications and high-output street builds.

Wiseco’s Professional Series pistons come equipped with premium piston rings and incorporate advanced manufacturing techniques to ensure maximum performance and longevity. Whether you are building a track-ready machine or a high-horsepower street cruiser, these pistons help you push the limits of your engine safely and effectively.

Key Features

Wiseco’s Professional Series pistons combine cutting-edge technology and race-proven design elements to meet the demands of extreme engine builds. Key features include:

• Forged from high-strength aluminum alloy for superior durability and heat resistance
• +4cc dome volume to increase compression ratio and improve combustion efficiency
• Precision-machined 4.060-inch bore size for exact fitment and optimal sealing
• Premium piston rings included for enhanced sealing and reduced blow-by
• Designed for heavy to severe duty race applications, including drag racing and road racing
• Optimized skirt design to reduce friction and wear under high RPM conditions
• Fully machined pin bosses for precise wrist pin alignment and reduced stress
• Compatible with factory and aftermarket connecting rods for versatile installation

Construction & Design

Each piston in the Wiseco Professional Series is forged from aerospace-grade aluminum alloy, providing an excellent strength-to-weight ratio. The forging process enhances grain structure and mechanical properties, resulting in pistons that withstand extreme combustion pressures and temperatures. The +4cc dome shape is carefully engineered to optimize combustion chamber dynamics, improving power output without compromising reliability.

Wiseco’s attention to detail extends to the piston skirt and ring lands, which are precision-machined to tight tolerances. This ensures consistent piston-to-cylinder wall clearance and superior ring sealing, reducing friction and wear. The pistons are also designed to accommodate high-performance wrist pins and retainers, allowing for secure and durable assembly in demanding race environments.

Installation & Fitment

These pistons are direct replacements for 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 should be performed by a qualified technician to ensure proper clearances and ring end gaps. No major modifications are typically necessary, but professional balancing and blueprinting are recommended for optimal performance and longevity.

What's Included

• Set of forged Wiseco Professional Series pistons (quantity as required for engine)
• Premium piston rings pre-installed or included separately
• Installation instructions and technical support documentation

Ideal For

These pistons are ideal for professional racers, engine builders, and enthusiasts who require high-strength components for severe duty applications. They are perfectly suited for drag racing, road racing, and high-performance street builds where increased compression and durability are critical. If you are upgrading or rebuilding a 6.1L SRT8 engine and demand race-proven quality, Wiseco Professional Series pistons offer a reliable foundation for your performance goals.

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.