Wiseco Professional Series Forged Piston Set

2011–2024 Chrysler 300, Dodge Challenger, Dodge Charger, Dodge Durango, Jeep Grand Cherokee, Jeep Wrangler, Ram 2500, Ram 3500, Jeep Grand Wagoneer 6.4L 392 HEMI

Part #: K0415X1

Overview

The Wiseco Professional Series Forged Piston Set is engineered for the Chrysler 6.4L Gen 3 HEMI V8, delivering exceptional strength and durability for high-performance and racing applications. This set of eight pistons features a 4.100-inch bore diameter, a 1.110-inch compression height, and a 0.927-inch pin diameter, ensuring a precise fit and optimal performance. Designed for serious racers and engine builders, these pistons withstand the rigors of heavy-duty use, including boosted and nitrous-assisted setups.

Whether building a race engine or a robust street/strip powerplant, Wiseco’s Professional Series pistons provide the reliability and strength needed to exceed factory limits. Each piston set comes complete with premium piston rings, offering a ready-to-install solution that supports aggressive tuning and extended durability.

Key Features

Wiseco’s Professional Series pistons incorporate advanced design and manufacturing techniques tailored for the Chrysler 6.4L Gen 3 HEMI platform:

• Forged from high-strength aluminum alloy for superior durability and resistance to extreme heat and pressure.
• Precision CNC-machined to exact bore, compression height, and pin diameter tolerances for perfect fitment and consistent performance.
• Maintains factory bore size of 4.100 inches for direct replacement without block modifications.
• Includes premium piston rings engineered to provide excellent sealing and reduce blow-by under high cylinder pressures.
• Optimized compression height of 1.110 inches to maintain proper deck clearance and piston-to-valve clearance in performance builds.
• Pin diameter of 0.927 inches compatible with factory or aftermarket wrist pins.
• Built to withstand severe duty cycles including boosted, nitrous, and high-RPM environments.
• Ideal for drag racing, road racing, and other motorsport applications demanding maximum strength and reliability.

Construction & Design

Wiseco’s Professional Series pistons are crafted using a premium forging process that enhances grain structure and mechanical properties for outstanding strength-to-weight ratio. The forged aluminum alloy construction reduces reciprocating mass while improving durability under extreme heat and pressure conditions common in high-performance engines.

Each piston is CNC-machined to exacting standards, ensuring consistent dimensions and tight tolerances critical for high-performance builds. The design optimizes ring sealing and reduces friction, contributing to improved engine efficiency and power output.

Installation & Fitment

This piston set is designed as a direct replacement for the Chrysler 6.4L Gen 3 HEMI engine, matching the factory bore size and compression height for straightforward installation. It is compatible with stock or upgraded connecting rods and wrist pins that meet the specified 0.927-inch pin diameter.

No engine block modifications or additional machining are typically required when installing these pistons, provided the engine block is properly prepared and honed to the specified bore size. This ensures a hassle-free upgrade for high-performance builds.

What's Included

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

Ideal For

• High-performance Chrysler 6.4L Gen 3 HEMI engine builds
• Serious racers and engine builders requiring maximum durability
• Drag racing, road racing, and other motorsport applications
• Boosted or nitrous-assisted engines demanding heavy-duty components
• Builders seeking a premium piston solution with proven reliability