Wiseco 6446LX125 Chevy LS Series Forged Shelf Stock Piston -18cc R/Dome 4.125 in. Bore

The Wiseco 6446LX125 is a shelf-stock, single forged piston engineered for Chevrolet LS series engines. Featuring a 4.125-inch bore and a -18cc reverse dome (R/Dome) crown design, this piston is purpose-built for high-compression performance and race-duty engine builds. As part of Wiseco's Professional Series lineup, the 6446LX125 delivers custom-level durability and precision in a ready-to-ship format, making it ideal for engine builders who need reliable, high-quality components without the lead time of a custom order.

Key Features:

• 4.125 in. Bore ? precision-sized for Chevy LS platform engine builds
• -18cc Reverse Dome (R/Dome) Crown ? optimized dome geometry for targeted compression ratios
• 2618 Forged Aluminum Construction ? high-strength alloy delivers superior tensile strength and resistance to detonation damage
• ArmorGlide? Skirt Coating ? reduces operating friction, resists seizure, and minimizes skirt and cylinder wall wear for quieter, longer-lasting operation
• Fully Machined Crown ? precision-machined crown features for consistent combustion chamber volume
• Precision Ring Grooves ? tight tolerances ensure proper ring seal and long-term ring land integrity
• Engineered, Forged & Machined in the USA ? manufactured at Wiseco's Mentor, Ohio facility using state-of-the-art CNC equipment
• Shelf Stock ? Single Piston ? sold individually for builders replacing one piston or completing a custom set

Wiseco's Professional Series pistons are designed for heavy to severe-duty race builds, offering the same features found in custom-order pistons at shelf-stock convenience. The 6446LX125 is an excellent choice for serious LS engine builders looking for proven forged piston technology with the reliability and quality that Wiseco has delivered for over 80 years.