MAHLE 930227705 PowerPak LS Forged Piston Kit Bore Flat Top - 4.005

The MAHLE 930227705 PowerPak is a complete race-proven piston assembly kit designed for high-performance street, sportsman, and professional racing applications. This 8-piston kit features a 4.005-inch bore, 3.622-inch stroke, 6.098-inch rod length, 1.330-inch compression height, and 0.945-inch pin diameter, making it ideal for LS engine builds targeting approximately 365 cubic inches of displacement.

Key Features:

• Forged from 4032 aluminum alloy for tighter cylinder-to-wall clearances and improved temperature stability
• Includes complete high-performance ring set with low-drag 1.0mm, 1.0mm, 2.0mm ring pack
• Flat top design with -5.8cc crown volume, producing 10.5:1 compression ratio with 65cc chambers
• Hand-deburred, performance-coated pistons with high-quality steel pins and round wire locks
• Phosphate dry lubricant coating protects against ring micro-welding and pin galling during initial startup, plus proprietary Grafal anti-friction coating on piston skirts
• Each piston weighs 429 grams; compatible with LS1/2/3/6/92 cylinder heads

The PowerPak kit delivers a cohesively engineered package for driving enthusiasts, racers, and engine builders who demand uncompromising reliability and performance. Note that stock applications with 0.943-inch pins require connecting rods to be honed to 0.945 inches for proper fitment.