Wiseco Professional Series Forged Piston Set

2003–2024 Chrysler 300, 300C, Dodge Challenger, Charger, Dakota, Durango, Magnum, Ram 1500/2500/3500, Jeep Commander, Grand Cherokee, Wagoneer 5.7L HEMI

Part #: K0109XS

Overview

The Wiseco Professional Series Forged Piston Set is engineered specifically for the Chrysler 5.7L 3rd Generation HEMI engine, delivering exceptional strength and durability for high-performance and racing applications. Featuring a +12cc dome design, these pistons increase compression ratio to enhance combustion efficiency and power output. Built for serious racers and performance enthusiasts, this piston set is ideal for heavy-duty race builds, track cars, drag racers, and high-output street machines demanding reliable performance under extreme conditions.

Each piston is precision forged and machined to exacting standards, ensuring a perfect fit and consistent performance. The kit includes premium piston rings matched to the pistons, providing a complete solution for engine builders seeking to maximize power and longevity in their 5.7L HEMI builds.

Key Features

Wiseco’s Professional Series pistons incorporate advanced materials and design innovations to meet the demands of high-stress racing environments:

• Forged from high-strength aluminum alloy for superior fatigue resistance and durability under extreme conditions
• +12cc dome shape increases compression ratio, improving combustion efficiency and power output
• 1.090-inch compression height optimized for Chrysler 5.7L HEMI engines to maintain proper piston-to-valve clearance and ring seal
• 3.917-inch bore size designed for precise fitment in 5.7L HEMI engines with 4.050-inch stroke compatibility
• 0.927-inch wrist pin diameter enhances strength and reduces piston pin wear
• Complete set of eight pistons with matching premium piston rings for balanced engine performance
• Manufactured with tight tolerances to ensure consistent piston-to-cylinder wall clearance and optimal sealing
• Designed for heavy-duty racing and high-performance applications requiring maximum reliability

Construction & Design

Wiseco Professional Series pistons are crafted using a state-of-the-art forging process that refines the aluminum alloy’s grain structure, resulting in pistons that resist cracking, scuffing, and thermal fatigue even under severe racing conditions. The robust pin boss and skirt design withstand high RPM loads and lateral forces typical in performance engines.

The +12cc dome not only raises the compression ratio but also optimizes combustion chamber dynamics, contributing to improved throttle response and power delivery. Each piston is precision-machined to maintain consistent weight and dimensional accuracy across the set, which is critical for engine balance and smooth operation.

Installation & Fitment

This piston kit is a direct replacement for Chrysler 5.7L 3rd Gen HEMI engines with a 3.917-inch bore and 4.050-inch stroke. Installation requires standard engine rebuild procedures, including proper machining of cylinder bores to match piston specifications. No modifications to the engine block or connecting rods are typically necessary when the engine is prepared correctly.

Professional engine assembly practices and adherence to torque specifications are recommended to ensure optimal performance and longevity of the pistons and engine components.

What's Included

• Set of 8 forged aluminum pistons with +12cc dome design
• Premium piston rings matched to piston specifications
• Complete kit ready for professional engine assembly

Ideal For

• Serious racers building heavy-duty or severe duty race engines
• Performance enthusiasts upgrading the Chrysler 5.7L HEMI for increased power and durability
• Engine builders requiring precision forged pistons for high-compression, high-RPM applications
• Track, drag, and high-performance street vehicles demanding reliable piston performance under extreme conditions

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.