Wiseco K0422X135 LS Professional Series Stroker Piston Kit 4.135 Bore 3.900 Stroke

The Wiseco K0422X135 is a Professional Series forged piston kit designed specifically for Chevrolet LS engines with a 3.900-inch stroke and 4.135-inch bore.

Key Features:

• Forged from 2618 high-tensile strength aluminum alloy for superior durability
• ArmorGlide skirt coating for seizure resistance, friction reduction, and quieter operation
• Optimized for 3.900-inch stroke to reduce bore distortion and crank stress
• 1.165-inch compression height design reduces piston rock and improves ring seal consistency
• -12cc dish crown volume with 10.2:1 compression ratio at 68cc chamber
• 0.927-inch pin diameter with H13 wrist pins and Spirolox retainers
• Includes premium 1.2mm, 1.2mm, 3.0mm GFX ring pack (4132GFX)
• Anti-detonation and pressure seal grooves for enhanced performance
• 0.150-inch taper wall pins included

This Professional Series kit is built for heavy to severe duty race applications and is engineered, forged, and machined in-house at Wiseco's Mentor, Ohio manufacturing facility. Designed for engines producing over 700 horsepower, these pistons deliver the strength and precision needed for competitive racing and extreme performance builds.