Wiseco K0044X1 Professional Series LS Forged Piston Kit Bore Dome - 4.010 9cc

The Wiseco K0044X1 is a Professional Series forged piston kit engineered specifically for GM LS engines with a 4.010-inch bore, 3.622-inch stroke, and stock 6.098-inch rod length. This complete kit features forged pistons with a +9cc dome design that delivers an 11.2:1 compression ratio, making it ideal for naturally aspirated, boosted, and nitrous applications.

Key Specifications:

• Bore: 4.010 inches
• Compression Height: 1.311 inches
• Stroke: 3.622 inches (standard LS stroke)
• Rod Length: 6.098 inches (stock LS)
• Pin Diameter: 0.945 inches
• Dome Volume: +9cc
• Average Weight: 508 grams per piston
• Compression Ratio: 11.2:1 (with 66cc chamber)

• File-fit GFX piston rings (4014GFX)
• Wrist pins (0.945" diameter)

Professional Series Features:

• ArmorGlide Skirt Coating: Advanced skirt coating reduces friction, maximizes horsepower, and improves wear resistance while allowing tighter bore tolerances
• In-House Forging: All pistons are forged in-house by Wiseco, ensuring complete quality control from raw material to finished product
• Optimized Design: Dedicated forgings with specially designed valve pockets, unique dome profiles, and precision-machined ring grooves
• Reluctor Ring Compatible: Accommodates reluctor rings on stroker cranks without pin boss notching
• Street-Friendly: Offset pins and skirt shapes designed for quiet street operation with long service life

Wiseco Professional Series pistons are proven in high-horsepower applications while maintaining excellent street manners. These pistons are designed for LSX engine blocks with cathedral port heads and are compatible with stock connecting rods using the larger 0.945-inch press-fit pin diameter.