Wiseco K0399XS 4.090" Bore 2.00cc Dome Professional Series Piston Set

The Wiseco K0399XS Professional Series piston set is engineered for serious racers and high-performance builders working with 6.4L (392ci) 3rd Generation Hemi engines. This complete 8-piston set features a 4.090-inch bore diameter, 2.00cc dome design, and 0.866-inch pin diameter, making it ideal for 4.050-inch stroker applications with 6.125-inch connecting rods.

Professional Series Features:

• Engineered, forged, and machined in the USA from premium 2618 aluminum alloy for superior tensile strength
• ArmorGlide skirt coating provides seizure resistance, friction reduction, and quieter operation
• 2.00cc dome configuration optimized for high-compression stroker builds
• 0.866-inch pin diameter designed for use with aftermarket connecting rods
• Includes premium ring sets, wrist pins, and circlips for complete installation
• Dedicated forgings with specially designed valve pockets for maximum clearance
• Optimized skirt profiles and precision-machined ring grooves for durability

Wiseco's Professional Series represents no-expense-spared engineering designed for heavy to severe duty race builds. Built with over 80 years of performance piston manufacturing expertise, these forged pistons deliver the strength, reliability, and power needed to compete at the highest levels. Each component is precision-crafted to withstand extreme boost, nitrous, and high-RPM conditions while maintaining proper clearances and reducing friction.