Wiseco K447X7 Professional Series LS Piston Set 4.070 Bore 12cc Dome

The Wiseco K447X7 is a Professional Series forged piston set designed for Chevrolet LS engines, featuring a 4.070 inch bore, 1.300 inch compression height, 0.927 inch pin diameter, and a 12cc domed crown design. Professional Series forged racing pistons from Wiseco are designed for serious racers and builders, packed full of custom-level performance and durability features for heavy to severe duty race builds. This complete set includes 8 pistons with premium piston rings.

Key Features:

• Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
• ArmorGlide® Skirt Coating provides seizure resistance, friction reduction, and quieter operation
• Fully machined crown with precision ring grooves and anti-detonation groove
• Dedicated forgings with specially designed valve pockets, unique dome and crown designs, and optimized skirt profiles
• Built for high boost and nitrous applications while running quietly on the street with long service life

This piston set is designed for GM LS standard stroke applications with a 3.622 inch stroke and 6.125 inch connecting rod length, delivering a compression ratio of approximately 12.4:1. The 2618 aluminum alloy construction provides exceptional strength for high-performance and racing applications where durability under extreme conditions is critical.