6.4L 3RD GEN HEMI APACHE, 4.090 BOR

The Wiseco Professional Series Forged Piston Set (MPN: K0399XS) is specifically engineered for Chrysler Gen III 6.4L 392 HEMI V8 engines, designed for high-performance and racing applications. These pistons offer exceptional strength and durability, ideal for both boosted and naturally aspirated builds, enduring extreme stresses. Each piston is precision forged from 2618 high-strength aluminum alloy and includes premium piston rings for optimal sealing and performance under high cylinder pressures and elevated temperatures. Key features include a 4.090" bore, 2.00cc dome volume, and 0.866" wrist pin diameter, along with an ArmorGlide™ skirt coating for seizure resistance, friction reduction, and quieter operation. The design is optimized for combustion efficiency, improving power output and engine longevity. They are compatible with 6.125" connecting rods and designed for seamless integration with factory and aftermarket components.