Wiseco K0397XS Professional Series Forged Piston Set Bore Hemi - 4.090 6.4L

The Wiseco K0397XS Professional Series Forged Piston Set is engineered for high-performance Chrysler 6.4L HEMI applications. Designed for serious engine builders and racers, these forged pistons deliver exceptional strength and durability to withstand the demanding conditions of performance builds, forced induction setups, and heavy-duty racing environments.

Key Specifications:

• 4.090-inch bore diameter for precise fitment
• 6.200-inch rod length optimized for ideal piston-to-rod ratio
• 0.945-inch wrist pin diameter for enhanced durability
• -2.8cc dish design for controlled compression
• Professional Series construction with advanced forging techniques

Wiseco forges these pistons from premium-grade aluminum alloy, creating a dense, uniform grain structure that provides maximum strength and fatigue resistance. The precision-machined design features reinforced ring lands and optimized skirt profiles to reduce friction and wear during high-RPM operation. Each piston is manufactured at Wiseco's state-of-the-art facility using decades of racing-proven engineering and is backed by the company's reputation as a leader in performance piston technology since 1941.