Wiseco Pistons K394X1 Professional Series LS -8cc Dish Piston Kit 4.010 Bore

The Wiseco K394X1 is a Professional Series forged piston kit designed for Chevrolet LS engine builds. This 8-piece set features a 4.010-inch bore, 1.115-inch compression height, and -8cc reverse dome (dish) design for optimal compression control. Each piston is engineered from 2618 aluminum alloy for superior tensile strength in high-performance and power adder applications.

Key Features:

• ArmorGlide skirt coating for seizure resistance, friction reduction, and quieter operation
• 0.927-inch pin diameter with forced pin oiling
• Fully machined crown features and precision ring grooves
• Anti-detonation groove and pressure seal grooves
• Ring sizes: 1.2mm, 1.2mm, 3.0mm
• Piston weight: 462 grams (advertised)
• Designed for 4.000-inch stroke and 6.125-inch rod length
• Engineered, forged, and machined in the USA

Professional Series pistons from Wiseco are no-expense-spared components designed for serious racers and engine builders. Built to withstand heavy to severe duty race builds, these pistons are ideal for naturally aspirated, boosted, and nitrous applications. Pin upgrade recommended for builds exceeding 700 horsepower.