Wiseco 6456LX05 Chevy LS Series Forged Piston -20cc R/Dome 4.005 in. Bore Shelf Stock

The Wiseco 6456LX05 is a Professional Series shelf-stock forged piston designed for Chevrolet LS Series engines. Featuring a -20cc reverse dome (R/Dome) crown, a 4.005 in. bore diameter, and a 1.110 in. compression height with a 0.927 in. pin diameter, this single piston is an ideal replacement or upgrade component for high-performance LS engine builds.

Key Features:

• Forged 2618 aluminum construction for superior tensile strength in performance and power-adder applications
• -20cc reverse dome crown for precise compression ratio tuning in LS platform builds
• 4.005 in. bore (standard +0.005 in. oversize) with fully machined crown features
• 1.110 in. compression height and 0.927 in. pin diameter
• ArmorGlide® skirt coating reduces operating friction, minimizes cylinder and skirt wear, and promotes quieter operation
• Precision ring grooves with anti-detonation groove and additional ring seal features
• Forced pin oiling for enhanced wrist pin lubrication under severe duty conditions
• Engineered, forged, and machined in the USA at Wiseco's Mentor, Ohio facility
• Sold as a single piston (shelf stock) — ideal for replacing one cylinder or completing a custom set

Wiseco's Professional Series pistons are built for serious racers and engine builders who demand custom-level performance and durability. Whether used in naturally aspirated, turbocharged, supercharged, or nitrous applications, the 6456LX05 delivers the reliability and precision that the LS platform demands.