Wiseco K0424X8 Chevy LS 3.900 Stroker Forged Piston Kit 4.080 Bore .927 Pin

The Wiseco K0424X8 is a forged piston kit designed for Chevrolet LS stroker engine builds using a 3.900-inch stroke crankshaft.

Key Features:

• 2618 High-Tensile Strength Aluminum Alloy — Forged in-house for superior strength and durability under extreme conditions
• ArmorGlide Skirt Coating — Provides seizure resistance, reduced friction, and quieter operation
• H13 Wrist Pins — High-strength pins included for optimal durability and precise fit
• 1.165-inch Compression Height — Optimized for 3.900-inch stroke geometry
• GFX Ring Pack Included — 1.2mm / 1.2mm / 3.0mm ring set engineered for power-adder applications
• Forced Pin Oiling — Improves lubrication and reduces friction at the pin bore
• Anti-Detonation Groove — Precision ring grooves with additional ring seal features for consistent performance
• 3.900 Stroke Rod Angle Optimization — Reduces bore distortion, crank and rod stress, and aids in maintaining a consistent ring seal
• Made in the USA — Engineered, forged, and machined at Wiseco's Mentor, Ohio manufacturing facility

With a bore size range available across this series from 3.780 to 4.185 inches, these pistons support potential displacements ranging from 350 to 429 cubic inches. Compression ratios span from 9.1:1 to 13.4:1 depending on dome configuration, making them suitable for both naturally aspirated and boosted builds. Each kit includes 8 pistons, H13 wrist pins, and a GFX ring pack.