Wiseco K0425X165 Chevy LS 3.900 Stroker Forged Piston Kit 4.125 in. Bore 1.650 in. CH 0.927 in. Pin

The Wiseco K0425X165 is a Professional Series forged piston kit engineered specifically for Chevrolet LS 3.900-inch stroker applications.

Key Features:

• 2618 High-Strength Aluminum Alloy — forged in-house at Wiseco's Mentor, Ohio facility for superior tensile strength and heat resistance
• Optimized for 3.900 Stroke Rod Angle — geometry designed to reduce bore distortion, minimize crank and rod stress, and maintain consistent ring seal
• Increased Compression Height Design — reduces piston rock and improves cylinder stability for more reliable performance
• ArmorGlide® Skirt Coating — seizure-resistant formula reduces friction and quiets operation, freeing up horsepower
• H13 Tool Steel Wrist Pins — included with the kit for exceptional pin strength in high-load applications
• Premium GFX Ring Pack Included — 1.2mm / 1.2mm / 3.0mm ring set optimized for power-adder and forced induction builds
• Fully Machined Crown Features — precision ring grooves and anti-detonation grooves for improved sealing under extreme cylinder pressure
• Designed and built for heavy to severe duty race builds

The Wiseco K0425X165 Professional Series piston kit delivers the custom-level durability and performance that serious engine builders demand in forced induction, nitrous, and high-compression naturally aspirated LS stroker builds.