Manley 39582RHXX BBC 582ci Rotating Assembly 4.375" Stroke 4.600" Bore +43cc Dome with Rings

The Manley 39582RHXX is a complete Big Block Chevrolet 582 cubic inch rotating assembly engineered for high-output street and race applications. Built around a 4.375-inch stroke and a 4.600-inch bore, this all-Manley kit delivers the core rotating components needed to build a proven, high-displacement BBC powerplant.

Kit Includes:

• 4340 Forged Steel Crankshaft – 4.375" stroke, designed for standard deck blocks with center counterweights for superior strength and balance
• 4340 Forged Steel H-Beam Connecting Rods – 6.535" length (Part No. 14066) with 7/16" ARP 8740 cap screws standard; optional ARP 2000 cap screws available for higher power levels
• 2618 Forged Aluminum Platinum Series Pistons – +43cc dome profile (Part No. 698280), laterally gas ported, with premium Chrome Moly wrist pins
• Piston Ring Set Included – File-fit rings matched to the 4.600" bore pistons
• Clevite Series Main and Rod Bearings

Key Specifications:

• Displacement: 582 CID
• Stroke: 4.375"
• Bore: 4.600"
• Connecting Rod Length: 6.535"
• Piston Volume: +43cc Dome
• Compression Ratio: 13.50:1 with 124cc head / 14.40:1 with 118cc head / 15.30:1 with 112cc head
• Horsepower Capability: Up to 900 HP with ARP 8740 rods bolts; up to 1,500 HP with optional ARP 2000 rod bolts
• Block Compatibility: Standard deck Big Block Chevy blocks with center counterweights (9.800" deck)
• Crankshaft Part No.: 190320
• Connecting Rod Part No.: 14066

Important: This rotating assembly is not pre-balanced from the factory. Professional balancing is required prior to installation. Fits standard deck Big Block Chevrolet blocks clearanced for a 4.375" stroke.

Manley Performance has been a trusted name in high-performance engine components since 1966, and this 582 BBC rotating assembly reflects their commitment to race-proven quality in every component.