MAHLE 928957060 PowerPak Forged Piston Ring Kit Big Block Chevy Bore - and 4.560

The MAHLE 928957060 PowerPak piston and ring kit is a complete race-proven performance package designed for big block Chevrolet engines. This comprehensive kit includes forged pistons, low-drag rings, steel wrist pins, and wire locks—everything needed for a professional engine build.

Key Features:

• Forged from 4032 low-expansion aluminum alloy for exceptional strength and durability
• Flat top piston design with -3cc dome volume
• 4.560 inch bore diameter for big block Chevy applications
• 6.385 inch rod length compatibility
• 4.250 inch stroke specification
• Hand-deburred pistons with dry phosphate coating to prevent ring micro-welding and pin galling during initial startup
• Proprietary Grafal anti-friction coating on piston skirts reduces drag and wear
• CNC precision-machined pin bores for exact tolerances
• High-quality steel wrist pins included
• Performance piston rings included in the kit
• Approximately 540 grams advertised weight per piston

MAHLE's PowerPak series represents over 80 years of piston manufacturing expertise, delivering proven performance from street engines to professional racing applications. Each piston is manufactured to exacting standards and includes features typically found only in high-end racing components.