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 #: 6470LX25

Overview

The Wiseco Professional Series forged pistons are engineered for serious racers and high-performance builders who demand uncompromising strength and durability. Designed specifically for the 6.1L SRT8 engines found in select Chrysler, Dodge, and Jeep models from 2005 to 2010, these pistons deliver exceptional reliability under heavy and severe duty race conditions. Featuring a 4.080-inch bore diameter and a 28cc dish volume, they provide the ideal balance of compression and combustion efficiency for enhanced power output.

Built with precision and packed with advanced features, Wiseco’s Professional Series pistons enable enthusiasts to push their engines beyond factory limits with confidence. Whether you are building a track-focused race engine or a high-performance street machine, these pistons offer the durability and performance needed to excel.

Key Features

Wiseco’s Professional Series pistons incorporate cutting-edge technology and premium materials to meet the demands of extreme racing environments. Key features include:

• Forged from high-strength aluminum alloy for superior durability and heat resistance
• Custom 28cc dish design optimized for 6.1L SRT8 combustion chambers
• Precision CNC-machined for exact bore and ring groove tolerances
• Equipped with premium piston rings for enhanced sealing and reduced blow-by
• Designed to withstand heavy and severe duty race conditions without failure
• Compatible with factory and aftermarket connecting rods and hardware
• Balanced for smooth engine operation and reduced vibration
• Ideal for high-boost, nitrous, and naturally aspirated performance builds

Construction & Design

Wiseco’s Professional Series pistons are crafted from aerospace-grade forged aluminum alloy, providing an excellent strength-to-weight ratio essential for high-performance applications. The forging process enhances grain structure, resulting in pistons that resist cracking, scuffing, and thermal fatigue even under extreme operating conditions.

The 4.080-inch bore size and 28cc dish volume are precisely engineered to complement the 6.1L SRT8 engine’s combustion chamber geometry, promoting efficient combustion and optimal compression ratios. Each piston undergoes rigorous CNC machining to ensure perfect ring groove dimensions and skirt profiles, reducing friction and improving engine longevity.

Installation & Fitment

These pistons are direct replacements for the factory pistons in the specified 6.1L SRT8 engines and fit the following vehicles:

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

Installation requires standard engine rebuild procedures. It is recommended to have professional machine work performed to ensure proper cylinder bore sizing and ring fitting. No modifications to the engine block or connecting rods are typically necessary when using these pistons.

What's Included

• Set of forged Wiseco Professional Series pistons (quantity as required for engine)
• Premium piston rings pre-installed or included separately
• Technical documentation and installation guidelines

Ideal For

These pistons are ideal for professional racers, engine builders, and performance enthusiasts who require maximum durability and performance from their 6.1L SRT8 engines. They are perfectly suited for:

• Heavy-duty drag racing and road racing applications
• High-boost forced induction setups
• Street performance builds demanding race-proven components
• Engine rebuilds aiming to increase 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.