Wiseco K450X3903 Professional Series Forged Piston Set Chevy LS 3.903 in. Bore -11cc Dish

The Wiseco K450X3903 is a Professional Series forged piston set designed for Chevrolet LS series engines, featuring a 3.903 in. bore, -11cc dish crown, 1.050 in. compression height, and 0.927 in. pin diameter. This set includes 8 pistons and comes complete with premium rings, making it a ready-to-install solution for serious high-performance and race builds.

Key Features:

• 3.903 in. Bore — precision-sized for LS platform builds targeting 4.100 in. / 4.125 in. stroke combinations
• -11cc Dish Crown — optimized crown volume for tuned compression ratios in naturally aspirated and forced induction applications
• 1.050 in. Compression Height — engineered for proper piston deck clearance in LS builds
• 0.927 in. Pin Diameter — robust wrist pin sizing for heavy-duty power levels
• 2618 High-Strength Aluminum Alloy — forged from aerospace-grade material for superior tensile strength and thermal resilience under severe race conditions
• ArmorGlide® Skirt Coating — proprietary coating reduces friction, resists seizure, and promotes quieter operation
• Fully Machined Crown — precise CNC-machined crown features for consistent combustion chamber geometry
• Precision Ring Grooves — accurately machined grooves ensure proper ring seal and longevity
• Engineered, Forged & Machined in the USA — manufactured at Wiseco's facility in Mentor, Ohio

Wiseco's Professional Series pistons are purpose-built for heavy to severe duty race applications. These no-compromise pistons deliver the custom-level performance and durability features demanded by professional engine builders and competitive racers. Built for racers, by racers — Wiseco K450X3903 sets the standard for LS performance piston sets.