Wiseco K0420X3800 Chevy LS 3.900" Stroker Forged Piston Kit .927 Pin 3.800" Bore

The Wiseco K0420X3800 is a professional-grade forged piston kit engineered for Chevy LS stroker builds using a 3.900" stroke crankshaft with a 3.800" bore.

Key Features:

• 2618 High-Strength Aluminum Alloy – Forged from premium 2618 alloy for superior tensile strength and fatigue resistance under severe duty conditions
• ArmorGlide® Skirt Coating – Proprietary coating provides seizure resistance, reduces friction, and promotes quieter operation
• Fully Machined Crown – Precision-machined crown features optimized valve pockets for LS cathedral-port cylinder heads
• .927" Pin Kit Included – Complete with full-floating .927" wrist pins and retention hardware
• Precision Ring Grooves – Anti-detonation groove and pressure seal improvements for superior ring seal and longevity
• Forced Pin Oiling – Enhances lubrication to the wrist pin for extended durability under high loads
• Premium Ring Set Included – Set includes matched performance rings sized for the 3.800" bore
• Made in the USA – Engineered, forged, and machined at Wiseco's Mentor, Ohio manufacturing facility

The K0420X3800 is part of Wiseco's Professional Series lineup — no-expense-spared pistons designed for serious engine builders who demand custom-level performance and durability in a shelf-stock kit. Compatible with the standard LS 9.240" deck height block using a 3.900" stroker crank and appropriate connecting rods.