Wiseco Professional Series Forged Pistons Set of 8: Fits Most Chrysler / Dodge SRT Models (2005-2015)

Wiseco Professional Series Forged Racing Pistons

Chrysler 6.4L Gen III HEMI

K0398XS

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 Chrysler 6.4L Gen III HEMI engine, this set of eight pistons offers precision fitment and advanced features to support heavy to severe duty race applications.

Whether you are building a track-only race engine or a high-output street machine, these pistons provide the reliability and performance needed to push your build beyond factory limits. With premium piston rings included, you’ll get a complete solution that enhances engine efficiency and longevity under extreme conditions.

Key Features:

Wiseco’s Professional Series pistons incorporate advanced materials and design elements to deliver superior performance and durability:

• Forged from high-strength aluminum alloy for maximum toughness and heat resistance.
• Precision CNC-machined 4.090-inch bore diameter to exacting tolerances for optimal cylinder sealing.
• Compression height of 1.125 inches engineered for proper deck clearance and piston-to-valve clearance in Gen III HEMI engines.
• 0.927-inch wrist pin diameter designed for enhanced strength and reduced piston pin deflection.
• Negative 16.5cc piston volume to optimize compression ratio and combustion chamber shape.
• Supplied as a complete set of eight pistons, ideal for V8 engine builds.
• Includes premium piston rings matched to the piston design for improved sealing and reduced blow-by.
• Designed specifically for Chrysler Gen III HEMI 6.4L engines, ensuring perfect fitment and compatibility.

Construction & Design:

These pistons are crafted using Wiseco’s advanced forging process, which enhances the metal grain structure to improve strength and fatigue resistance. The forged aluminum alloy construction offers excellent thermal conductivity, helping to manage combustion heat effectively during high-RPM operation.

The pistons feature a carefully engineered dish volume of -16.5cc, which helps optimize compression and combustion efficiency for race-tuned Gen III HEMI engines. The wrist pin and ring lands are reinforced to withstand the rigors of severe duty racing environments, ensuring long-lasting durability.

Installation & Fitment:

This piston set is designed as a direct replacement for Chrysler 6.4L Gen III HEMI engines, providing precise bore and compression height specifications for seamless installation. They fit the factory cylinder bore size of 4.090 inches and maintain proper piston-to-cylinder wall clearance for reliable operation.

No modifications to the engine block or connecting rods are required when installing this piston set, making it suitable for professional engine builders seeking a bolt-in performance upgrade.

What’s Included

• Set of 8 forged aluminum pistons
• Premium piston rings matched to the piston design
• Wrist pins and circlips (if applicable, depending on kit contents)

Ideal For:

• Professional racers and engine builders requiring high-strength pistons for severe duty applications
• Performance enthusiasts upgrading Chrysler 6.4L Gen III HEMI engines for track or drag racing
• Builders seeking reliable forged pistons with precision fitment and advanced durability features
• Heavy-duty race builds that demand pistons capable of handling increased cylinder pressures and RPM