Wiseco K0427X185 Chevy LS 3.900 Stroker Forged Piston Kit .927 Pin

The Wiseco K0427X185 is a forged piston kit designed for Chevy LS stroker engine builds utilizing a 3.900-inch stroke crankshaft. Featuring a 4.270-inch bore diameter and a .927-inch wrist pin, this kit is engineered to handle the increased displacement and higher cylinder pressures generated by performance stroker combinations.

Wiseco's forged pistons are manufactured from high-strength 2618 aluminum alloy, offering superior strength and thermal fatigue resistance compared to cast pistons. The forging process produces a denser grain structure that stands up to the demands of forced induction, nitrous, and high-compression naturally aspirated builds.

Key Features:

• Bore Size: 4.270 inches
• Stroke: Compatible with 3.900-inch stroker crankshafts
• Wrist Pin Diameter: .927 inch
• Forged 2618 aluminum alloy construction for maximum strength
• CNC-machined for precise fitment and consistent ring seal
• Includes pistons, wrist pins, locks, and ring set
• Designed for Chevrolet LS-series engine platforms
• Suitable for high-performance street, strip, and competition applications

Wiseco is a leading manufacturer of performance pistons with decades of motorsport heritage. The K0427X185 kit provides the durability and precision required for serious LS stroker builds, making it an ideal choice for engine builders seeking reliability at elevated power levels.