Wiseco Forged Piston Set

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

Part #: K0111X25

Overview

The Wiseco Professional Series Forged Piston Set is engineered specifically for the Chrysler 6.1L Gen III HEMI small block engines found in select 2005 to 2010 Mopar vehicles. Designed for serious racers and high-performance engine builders, these pistons deliver exceptional strength, durability, and precision required for heavy to severe duty racing applications. Whether you are building a track-focused race engine or a high-output street machine, this piston set offers the reliability and performance to push your build beyond factory limits.

Featuring a +8 cc dome design, these pistons optimize combustion chamber volume to increase compression and improve power output and efficiency. Wiseco’s forged pistons are trusted by professionals who demand uncompromising quality and performance in demanding environments such as drag racing, road course, and endurance events.

Key Features

Wiseco’s Professional Series pistons incorporate advanced materials and precision manufacturing to ensure peak performance and longevity under extreme conditions. Key features include:

• Forged from premium-grade aluminum alloy for superior strength and heat resistance
• +8 cc dome design to increase compression and optimize combustion efficiency
• 4.080 inch bore size tailored for Chrysler 6.1L HEMI engines
• 1.220 inch compression height matching Gen III HEMI block specifications
• 0.984 inch wrist pin diameter for enhanced durability and reduced piston pin wear
• Set of 8 pistons, ideal for complete V8 engine builds
• Includes premium piston rings engineered for high-performance sealing and reduced blow-by
• Designed to withstand heavy to severe duty racing environments including drag, road course, and endurance racing

Construction & Design

Each piston is precision forged using Wiseco’s state-of-the-art manufacturing processes, ensuring consistent grain structure and mechanical properties for maximum strength and durability. The forged aluminum alloy construction provides an excellent strength-to-weight ratio, reducing reciprocating mass and improving engine response and efficiency.

The +8 cc dome shape is CNC-machined to exact specifications, optimizing combustion chamber shape and compression ratio for the Chrysler 6.1L HEMI engine. This design enhances power output while maintaining reliable detonation resistance, even under high boost or nitrous oxide conditions. Attention to detail in pin bore sizing and skirt coating reduces friction and wear, contributing to longer engine life and improved efficiency.

Installation & Fitment

This piston set is a direct fit replacement for Chrysler 6.1L Gen III HEMI small block engines used in the 2005–2010 Chrysler 300C SRT8, Dodge Challenger SRT8, Dodge Charger SRT8, Dodge Magnum SRT8, and Jeep Grand Cherokee SRT8. No modifications to the block or connecting rods are typically required when installing these pistons. Proper machining and assembly practices are recommended to ensure optimal piston-to-cylinder wall clearance and ring end gap settings for best performance and longevity.

What's Included

• Set of 8 Wiseco Professional Series forged pistons with +8 cc dome
• Premium piston rings matched to piston specifications

Ideal For

• Serious racers building heavy to severe duty Chrysler 6.1L HEMI race engines
• Performance enthusiasts seeking durable forged pistons for high-output street or track applications
• Engine builders requiring precision components for custom or high-compression builds