Wiseco K0433B85 LS Stroker Max Series Piston Set Bore Stroke - 4.085 4.000

The Wiseco K0433B85 is a professional-grade forged piston kit designed for GM LS engine stroker builds. This Stroker Max Series piston set features a 4.085-inch bore diameter, 4.000-inch stroke, 6.125-inch connecting rod length, and a +10.4cc max dome configuration, making it ideal for performance enthusiasts seeking increased displacement and power output.

Key Features:

• 4.085-inch bore diameter precision-forged pistons
• Designed for 4.000-inch stroke stroker cranks
• 6.125-inch connecting rod length
• +10.4cc dome volume for optimized compression
• 1.110-inch compression height
• ArmorGlide skirt coating reduces friction and wear while maximizing horsepower
• Strutted skirt design engineered for tight clearances and reduced noise
• Accommodates reluctor ring on stroker cranks without pin boss notching
• Anti-detonation grooves prevent carbon buildup and resist pre-ignition
• Radiused valve pockets for improved flow and detonation resistance
• Premium GFX ring package included (1.2mm/1.2mm/3.0mm)
• Heavy-duty wrist pins and locks included

Wiseco's Stroker Max Series pistons are manufactured from high-strength forged aluminum alloy and feature the proprietary ArmorGlide skirt coating technology. This advanced coating allows tighter piston-to-bore clearances while reducing friction, minimizing noise, and improving overall durability. The offset pin design and optimized skirt shape make these pistons suitable for both high-performance street applications and racing builds. Each piston undergoes rigorous quality control to ensure precision fitment and reliable performance in demanding LS stroker engine applications.