Wiseco Professional Series Forged Piston Set

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

Part #: K0111XS

Overview

The Wiseco Professional Series Forged Piston Set is engineered specifically for the Chrysler 6.1L Gen III HEMI small block engine, offering a precision drop-in solution for high-performance and racing applications. Designed for serious racers and engine builders, these pistons provide exceptional strength and durability to handle the extreme demands of heavy to severe duty race conditions. Whether upgrading a Mopar for track use or assembling a high-output race engine, this piston set ensures reliable performance and longevity beyond factory specifications.

Each piston is crafted to exacting standards, delivering consistent fitment and optimal engine geometry. This set is ideal for those seeking to maximize power output while maintaining engine reliability under high RPM and elevated cylinder pressures.

Key Features

Wiseco’s Professional Series pistons combine advanced design and manufacturing techniques to meet the rigorous demands of competitive motorsports and high-performance enthusiasts:

• Forged from high-strength aluminum alloy for superior durability and resistance to thermal and mechanical stress
• Precision drop-in design with a 4.055-inch bore diameter for direct replacement in Chrysler 6.1L Gen III HEMI engines
• Compression height of 1.220 inches optimized for proper deck clearance and piston-to-valve clearance
• Pin diameter of 0.984 inches engineered for robust wrist pin fitment and reduced wear
• Designed to withstand heavy to severe duty race conditions, including high RPM and elevated cylinder pressures
• Complete set of eight pistons supplied with premium piston rings for balanced performance across all cylinders
• Manufactured with tight tolerances to ensure consistent fitment and performance in high-stress environments
• Ideal for builders seeking to maximize power output and engine reliability in Mopar 6.1L HEMI applications

Construction & Design

These pistons are forged using Wiseco’s advanced forging processes that enhance grain structure and mechanical properties, resulting in components that resist cracking and deformation under extreme conditions. The forged aluminum alloy construction offers an excellent strength-to-weight ratio, reducing reciprocating mass and improving engine responsiveness.

The pistons feature a carefully engineered compression height and pin diameter to maintain proper geometry and clearances within the cylinder bore. This precision ensures smooth operation and longevity, even in high-performance race engines.

Installation & Fitment

Designed as a direct drop-in replacement for Chrysler 6.1L Gen III HEMI small block engines, these Wiseco pistons require no modifications to the engine block or connecting rods. They utilize factory dimensions and mounting points, allowing for straightforward installation by experienced engine builders.

No cutting, drilling, or special tuning is required when installing this piston set, making it an efficient and reliable upgrade for performance builds.

What's Included

• Set of 8 forged aluminum pistons
• Premium piston rings installed

Ideal For

• Professional racers and serious engine builders
• High-performance Mopar 6.1L HEMI engine builds
• Heavy-duty and severe duty race applications
• Builders seeking reliable, durable forged pistons for track or competition use

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.