Manley 29582HX Big Block Chevy Rotating Assembly Stroke Bore Dome - 582 Kit 4.375 4.600 43cc

The Manley 29582HX is a complete Big Block Chevy (BBC) 582 CID rotating assembly kit engineered for serious high-performance street and race engine builds. Built around a 4.375-inch stroke and designed for a 4.600-inch bore, this kit displaces 582 cubic inches and delivers the forged components needed to handle extreme power output.

Kit Includes:

• Manley 4340 Forged Steel Crankshaft – 4.375" stroke, lightweight construction for reduced reciprocating mass
• Manley 4340 Forged Steel H-Beam Connecting Rods – 6.535" length with ARP cap screws for maximum strength and reliability
• Manley 2618 Forged Aluminum Platinum Series Pistons – +43cc dome volume with lateral gas porting for superior ring seal under boost or high compression
• Premium Piston Rings – High-performance rings included for a complete bottom-end build
• Clevite® Rod and Main Bearings – "H" Series narrowed rod bearings and "P" Series main bearings included
• Premium Chrome Moly Wrist Pins

Compression Ratio Reference (with +43cc Dome Pistons):

• 58cc combustion chamber: 15.3:1
• 64cc combustion chamber: 14.4:1
• 76cc combustion chamber: 13.5:1

Key Specifications:

• Engine Family: Big Block Chevy (BBC)
• Displacement: 582 CID
• Stroke: 4.375"
• Bore: 4.600"
• Rod Length: 6.535"
• Piston Dome Volume: +43cc (lateral gas ported)
• Deck Height: 9.800" (short deck block)
• Crankshaft Material: 4340 Forged Steel
• Rod Material: 4340 Forged Steel H-Beam
• Piston Alloy: 2618 Forged Aluminum
• Rod Fasteners: ARP Cap Screws

The HX designation indicates this kit is equipped with upgraded ARP 2000 cap screws, rated for applications producing up to 1,500 horsepower — making this assembly suitable for forced induction, nitrous, and all-out race builds. Note: this kit requires professional balancing prior to installation.