Wiseco Pistons K394X7 Professional Series Forged Piston Kit for Chevy LS 4.070 Bore

The Wiseco K394X7 Professional Series Forged Piston Kit is engineered for high-performance Chevrolet LS engine builds. This complete 8-piston set features forged aluminum construction with an -8cc dish design and 4.070-inch bore diameter, optimized for 4.000-inch stroke and 6.125-inch rod length applications with 1.115-inch compression height.

Key Features:

• Forged aluminum pistons with -8cc dish design for optimal compression
• ArmorGlide skirt coating reduces friction, maximizes horsepower, and improves wear resistance
• Accommodates reluctor ring on stroker cranks without notching pin bosses
• Offset pins and skirt shapes specifically designed for street applications
• Includes GFX 1.2mm/1.2mm/3.0mm steel ring set with positive twist top ring and Napier scraper second ring
• Strutted skirt design runs at as little as .004-inch clearance with minimal noise
• Radiused valve pockets for detonation resistance and increased flow
• Successfully tested in high-horsepower applications

This Professional Series kit represents the culmination of Wiseco's in-house dyno testing and development program. Each kit includes pistons, precision-engineered piston rings, chromium alloy steel pins, and secure clips for a complete installation. The advanced ArmorGlide coating allows tighter bore clearances than non-coated pistons while delivering superior performance and longevity.