Wiseco K0442X05 Chevy LT1 Gen V Forged Piston Kit -2cc Dish 4.070 Bore 1.299CH

The Wiseco K0442X05 is a Professional Series forged piston kit engineered specifically for the Chevrolet Gen V LT1 engine platform.

Key Features:

• 4.070 in. Bore — Precision-sized for stock or lightly overbored LT1 Gen V applications
• -2cc Dish Crown — Engineered to maintain proper compression ratio with LT1 direct injection bowl geometry
• 1.299 in. Compression Height — Designed for use with the stock 3.622 in. stroke crankshaft
• 0.927 in. Pin Diameter — Compatible with stock connecting rods; designed for use with .180" wall pins and wire locks
• 2618 High-Strength Aluminum Alloy — Forged in-house at Wiseco's USA facility for superior tensile strength and durability under extreme loads
• ArmorGlide® Skirt Coating — Proprietary coating delivers seizure resistance, reduced friction, and quieter piston operation
• OEM DI Bowl Geometry — Retains the factory-validated direct injection bowl shape and valve reliefs to ensure proper fuel charge atomization and combustion efficiency
• Precision Ring Grooves — Machined to exacting tolerances; includes premium gas-nitrided ring pack
• Fully Machined Crown — CNC-machined crown features for optimal performance and consistency across all 8 pistons

Wiseco Professional Series pistons are manufactured entirely in the United States at Wiseco's Mentor, Ohio facility and are validated for use in high-horsepower, power-adder, and race applications. The strutted forging design provides exceptional strength while keeping weight in check — a critical balance for high-revving LT1 builds.