Wiseco 6398LX3 Professional Series Chevy LS Forged Piston 4.030 in. Bore Shelf Stock

The Wiseco 6398LX3 is a Professional Series shelf-stock forged piston engineered for Chevrolet LS-based engines. Featuring a 4.030 in. bore, 1.3045 in. compression height, and a 0.927 in. pin diameter with a flat top crown at -3.2cc volume, this single piston is purpose-built for high-performance and race engine builds.

Key Features:

• Engineered, forged, and machined in the USA from 2618 aluminum alloy for superior tensile strength under extreme conditions
• ArmorGlide® skirt coating provides seizure resistance, reduced friction, and quieter operation
• Fully machined crown with precision ring grooves, anti-detonation groove, and ring seal enhancement features
• Complex skirt profiles minimize power-robbing friction while maintaining bore stability for optimum ring seal
• Precision-machined ring grooves feature calculated groove root diameters and axial widths for maximum ring seal and minimized blow-by
• Forced pin oiling for enhanced lubrication under severe duty conditions
• Designed and built to handle high boost, nitrous, and heavy-duty race applications

Specifications:

• Bore: 4.030 in.
• Compression Height: 1.3045 in.
• Pin Diameter: 0.927 in.
• Piston Volume: -3.2cc (Flat Top)
• Ring Groove Dimensions: 1.2 x 1.2 x 3.0 mm
• Rod Length: 6.125 in.
• Piston Material: 2618 Aluminum
• Quantity: Single Piston (Shelf Stock)

Wiseco's Professional Series LS pistons are manufactured at their ISO-certified facility in Mentor, Ohio, using advanced forging technology and feature-aligned grain flow for unmatched durability. Sold individually, the 6398LX3 is ideal for engine builders who need to replace a single piston or are building custom combinations outside of a standard full set.