Wiseco KE155M8125 Forged Piston Set Volvo B5234T 2.3L 20V 81.25mm Bore 8.5:1 CR

The Wiseco KE155M8125 is a Professional Series forged piston set engineered for the Volvo B5234T 2.3L 20V five-cylinder engine found in the 850 platform.

Key Specifications:

• Bore: 81.25mm / 3.199"
• Oversize: +0.010"
• Stroke: 90mm / 3.543"
• Rod Length: 139.5mm / 5.492"
• Compression Height: 35.9mm / 1.413"
• Crown Volume: -10cc Dish
• Head Volume: 51cc
• Compression Ratio: 8.5:1
• Wrist Pin: 23mm (S729) — .905" x 2.500"
• Ring Set Included: 8125XX

Professional Series Features:

• 2618 Aluminum Alloy: Forged, heat-treated, and machined in the USA for superior tensile strength and resilience under high temperatures and pressures
• ArmorGlide® Skirt Coating: Reduces operating friction, minimizes skirt and cylinder wall wear, and allows a tighter piston-to-bore fit than uncoated pistons
• Dish Crown Design: Promotes efficient air-fuel mixture flow and helps resist detonation and pre-ignition under forced induction
• Precision Ring Grooves: Machined to tight tolerances for improved ring seal and reduced blowby
• Premium Ring Set Included: High-quality rings supplied for a complete, ready-to-install kit
• Wrist Pins Included: S729 23mm pins included with each piston

The Wiseco Professional Series represents a no-compromise approach to performance piston design, built for heavy to severe duty race applications while remaining streetable. These pistons are especially suited for turbocharged Volvo B5234T builds where power-adder durability and dimensional precision are critical.