Wiseco K0042X1 Professional Series Forged Piston Kit GM LS 3.790 Bore

The Wiseco K0042X1 Professional Series Piston Kit is engineered for Chevrolet LS-based engines, featuring forged construction from 2618 high-strength aluminum alloy. This complete 8-piston set is designed for 5.3L LS engines with a 3.790-inch bore, 3.622-inch stroke, and 6.098-inch rod length, delivering exceptional performance for both street and high-performance applications.

Key Features:

• Forged dish pistons with -10.7cc crown volume for 8.6:1 compression ratio
• ArmorGlide skirt coating reduces friction and improves wear resistance
• Anti-detonation and pressure seal grooves for better ring seal and reduced noise
• Accommodates reluctor ring on stroker cranks without notching pin bosses
• 1.321-inch compression height with 0.945-inch pin diameter
• Lightweight design at 417 grams per piston
• Premium ring package included: 1.0mm, 1.2mm, 2.8mm XX rings
• Dedicated forgings with optimized skirt profiles and precision-machined ring grooves
• 0.180-inch wall pins with wire locks included

This kit is specifically designed for cathedral port LS engines and works with stock connecting rods. Built for high boost and nitrous applications while maintaining quiet street operation and long service life, these pistons represent Wiseco's commitment to performance and durability. Each kit is engineered, forged, and machined in the USA at Wiseco's Mentor, Ohio facility.