Manley 29572HX BBC Rotating Assembly Stroke Bore Dome Pistons - 572 4.250 4.625 43cc

The Manley 29572HX is a complete Big Block Chevy (BBC) 572 cubic inch rotating assembly built for serious high-performance street and race engine builds. Featuring a 4.250-inch stroke and 4.625-inch bore, this kit is engineered around Manley's proven combination of forged components and precision tolerances to support extreme power output.

Kit Includes:

• Lightweight 4340 forged steel crankshaft — 4.250" stroke
• 4340 forged steel H-Beam connecting rods with 7/16" ARP 8740 cap screws (ARP 2000 cap screws optional for higher horsepower)
• 2618 forged aluminum Platinum Series pistons — 4.625" bore with +43cc dome, premium chrome moly wrist pins included
• High-performance piston rings
• Clevite® "H" Series narrowed rod bearings and "P" Series main bearings

Horsepower Capability:

• Up to 900 hp with standard ARP 8740 cap screws
• Up to 1,500 hp with optional ARP 2000 cap screws

Manley rotating assemblies are engineered to the tight tolerances required for high-displacement, high-compression BBC builds. The +43cc dome piston design is ideal for builds targeting elevated compression ratios in open-chamber cylinder head configurations. All components are matched and designed to work together for a reliable, powerful bottom end.