Manley 28572H BBC Rotating Assembly Stroke Bore Flat Top - 572 4.250 4.625 3cc

The Manley 28572H is a complete Big Block Chevy 572 cubic inch rotating assembly engineered for serious performance builds. Featuring a 4.250-inch stroke and matched to a 4.625-inch bore, this kit delivers everything needed to build a high-output BBC stroker from the bottom up. The assembly is precision internally balanced by Manley, saving critical engine dyno time during the build process.

Kit Highlights:

• Crankshaft: 4340 forged steel non-twist crankshaft — heat treated, stress relieved, shot peened, nitrided, and 100% Magnafluxed for maximum durability
• Connecting Rods: 4340 forged steel H-beam connecting rods with 7/16" ARP 8740 cap screws (rated to 900 hp); optional ARP 2000 cap screws available for builds up to 1,500 hp
• Pistons: Manley 2618 Platinum Series forged aluminum flat-top pistons with -3cc valve relief, 4.625" diameter
• Wrist Pins: Premium chromoly wrist pins included
• Piston Rings: Total Seal piston rings included
• Bearings: Clevite "H" Series narrowed rod bearings and "P" or "H" Series main engine bearings included
• Balance: Precision internally balanced assembly
• Rear Main Seal: 2-piece style
• Displacement: 572 cubic inches / 9.4L
• Bore: 4.625 in. (117.475 mm)
• Stroke: 4.250 in.
• Piston Style: Flat top with single valve relief, -3cc

Manley's 2618 Platinum Series forged pistons are built to withstand extreme cylinder pressures and elevated temperatures, making this rotating assembly well-suited for power-adder applications including supercharged, turbocharged, and nitrous-assisted builds. Every component in the kit is manufactured to exacting tolerances and pre-balanced together as a matched set, ensuring reliable performance in demanding street/strip and race environments.