Wiseco 6448RX05 Professional Series Chevy LS Forged Piston 4.035 in. Bore 5cc Dome

The Wiseco 6448RX05 is a Professional Series shelf-stock forged piston engineered for the Chevrolet LS engine platform. Featuring a 4.035 in. bore (0.005 in. oversize), a 5.0cc dome crown, a 1.1105 in. compression height, and a 0.927 in. wrist pin diameter, this single-piston unit is purpose-built for serious performance and race engine builds that demand precise compression tuning and maximum durability.

Key Features:

• Forged 2618 aluminum construction — engineered and machined in the USA for superior tensile strength and ductility under high-stress racing conditions
• 5.0cc dome crown — increases effective compression ratio for naturally aspirated performance builds
• 4.035 in. bore diameter — 0.005 in. oversize for use in bored or lightly worn LS cylinder bores
• 1.1105 in. compression height — optimized for LS stroker and standard stroke combinations
• 0.927 in. wrist pin diameter — matches standard LS pin dimensions for direct compatibility
• ArmorGlide® skirt coating — dry film lubricant permanently bonded to the piston skirt to reduce friction, minimize cylinder wall wear, and quiet piston operation
• Precision ring grooves — machined to tight tolerances with an anti-detonation groove and enhanced ring seal geometry
• Forced pin oiling — improves lubrication to the wrist pin under sustained high-RPM and high-load conditions
• Shelf-stock single piston — available for immediate shipment; ideal for replacing a single piston or custom-quantity builds

Wiseco Professional Series pistons are no-compromise components designed for heavy to severe-duty race applications including drag racing, circle track, and power-adder builds. The 6448RX05 is sold as a single piston and includes rings, making it the ideal solution for precision LS engine assembly or rebuilds requiring an oversize bore.