Wiseco K0035X155 Professional Series Chevy LSX Forged Piston Kit 4.155 in. Bore -25cc Dish

The Wiseco K0035X155 is a Professional Series forged piston kit for Chevrolet LSX engines, featuring a 4.155 in. bore, 1.110 in. compression height, and a -25cc reverse dome (dish) crown designed to achieve stock-style compression ratios in high-performance and stroker builds. Engineered for serious engine builders, this kit delivers race-proven durability with street-friendly refinements.

Key Specifications:

• Bore: 4.155 in.
• Compression Height: 1.110 in.
• Pin Diameter: 0.927 in.
• Crown Volume: -25cc Reverse Dome (Dish)
• Stroke: 4.000 in.
• Application: Chevrolet LSX (LS-based engines)

Key Features:

• 2618 High-Strength Aluminum Alloy — forged and machined in the USA for superior tensile strength and thermal resilience
• ArmorGlide® Skirt Coating — friction-reducing polymer coating that allows tighter bore fitment, reduces piston rock noise, and improves wear resistance
• Reluctor Ring Clearance — designed to accommodate the reluctor ring on stroker cranks without requiring pin boss notching
• OE-Style Offset Wrist Pins — reduces piston slap and noise, optimized for street and strip use
• Precision Machined Ring Grooves — ensure consistent ring seal and long-term performance
• Premium Ring Package Included — kit includes high-performance rings suited for naturally aspirated, boosted, and nitrous applications
• Anti-Detonation & Pressure Seal Grooves — added protection under high cylinder pressure conditions

The Wiseco K0035X155 Professional Series piston kit is built for heavy to severe-duty race builds and has been tested in the highest horsepower LSX applications. Whether building a naturally aspirated stroker, a boosted street car, or a dedicated race engine, these forged pistons provide the strength and precision demanded by performance engine builders.