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 #: 6471LX25

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 feature a +4cc dome and a 4.080-inch bore size to optimize combustion chamber volume and compression ratios.

Built to withstand the rigors of heavy to severe duty race applications, these pistons provide enhanced durability and performance over stock components. Wiseco’s Professional Series pistons come equipped with premium piston rings and incorporate advanced design features to ensure maximum power output and engine longevity under extreme conditions.

Key Features

Wiseco’s Professional Series pistons combine cutting-edge technology and precision manufacturing to deliver superior performance. Key features include:

• Forged from high-strength aluminum alloy for exceptional durability and heat resistance
• +4cc dome design to increase combustion efficiency and power potential
• 4.080-inch bore diameter for precise fitment in 6.1L SRT8 engines
• Premium piston rings included for improved sealing and reduced blow-by
• Optimized skirt profile to reduce friction and wear
• Custom-level performance features tailored for severe duty and racing environments
• Heat-treated and machined to exacting tolerances for consistent performance
• Compatible with high-boost and high-RPM applications

Construction & Design

Each Wiseco Professional Series piston is forged from aerospace-grade aluminum alloy, providing an ideal balance of strength, weight, and thermal conductivity. The forging process enhances grain structure, resulting in pistons that resist cracking and deformation under extreme stress. The +4cc dome shape is precision-machined to optimize combustion chamber volume, improving power output without sacrificing reliability.

Advanced skirt coatings and surface treatments reduce friction and wear, extending piston life and maintaining tight clearances. The pistons are heat-treated and finish-machined to exact specifications, ensuring perfect fitment and consistent performance in demanding race engines.

Installation & Fitment

These pistons are designed as direct replacements for factory components in the 6.1L SRT8 engines of the specified Chrysler, Dodge, and Jeep models. Professional installation is recommended to ensure proper clearances and ring end gap settings. Minor machining or balancing may be required depending on the engine build and supporting components.

Wiseco Professional Series pistons are ideal for engine builders upgrading to forged internals for enhanced durability and power handling in street, strip, or track applications.

What's Included

• Set of forged Wiseco Professional Series pistons with +4cc dome
• Premium piston rings pre-installed or included separately
• Installation instructions and technical specifications

Ideal For

• Performance enthusiasts upgrading 6.1L SRT8 engines for racing or high-performance street use
• Engine builders requiring durable forged pistons for heavy-duty or severe duty applications
• Motorsport competitors seeking reliable components capable of withstanding high RPM and boost levels
• Owners of 2005–2010 Chrysler 300C, 2006–2010 Dodge Charger, 2006–2008 Dodge Magnum, 2006–2010 Jeep Grand Cherokee, and 2008–2010 Dodge Challenger with 6.1L SRT8 engines

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.