Wiseco K0421X75 Chevy LS 3.900" Stroker Forged Piston Kit with .927" Pin

The Wiseco K0421X75 is a forged piston kit designed for Chevrolet LS engines built with a 3.900-inch stroker crankshaft. Wiseco's forged pistons are manufactured using proprietary ArmorGlide skirt coating technology and high-strength aluminum forgings, delivering the durability and performance demanded by high-output street and race LS builds.

Key Features:

• Designed for Chevy LS stroker applications with a 3.900-inch stroke
• .927-inch pin diameter for heavy-duty strength and rigidity
• Forged from high-strength aluminum alloy for superior durability over cast pistons
• ArmorGlide skirt coating reduces friction and improves wear resistance
• Precision CNC-machined to tight tolerances for consistent ring seal and long service life
• Full floating pin design for reduced stress and improved longevity
• Includes piston rings, wrist pins, and pin locks as a complete kit

Wiseco has been an industry leader in forged pistons for performance and racing applications for decades. The K0421X75 kit is an ideal choice for enthusiasts and engine builders constructing a high-displacement LS stroker engine with the reliability and performance that only a true forged piston can provide.