Manley 39582RH Big Block Chevy Rotating Assembly Stroke Bore Dome - 582ci 4.375 4.600 43cc

The Manley 39582RH is a complete Big Block Chevy 582 cubic inch rotating assembly engineered for serious high-performance street and race applications. Built around a 4.375-inch stroke and 4.600-inch bore, this all-Manley kit delivers the displacement and strength demanded by builds targeting 900 to 1,500+ horsepower.

Kit Components & Specifications:

• Crankshaft: 4340 forged steel, 4.375" stroke — Manley Part #190320
• Connecting Rods: 4340 forged steel H-Beam, 6.535" length — Manley Part #14066
• Rod Bolts: ARP 8740 cap screws standard; optional ARP 2000 upgrade available
• Pistons: 2618 forged aluminum Platinum Series dome pistons, +43cc volume, 4.600" bore
• Wrist Pins: Premium Chrome Moly
• Bearings: Clevite Series main and rod bearings
• Displacement: 582 cubic inches
• Engine Block Compatibility: Standard deck blocks with center counterweights

Compression Ratio Reference (with +43cc dome pistons):

• 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 standard ARP 8740 rod bolts
• Up to 1,500 hp with optional ARP 2000 rod bolt upgrade

Manley Performance components are manufactured to exacting tolerances, making the 39582RH an ideal foundation for a purpose-built BBC stroker. The 2618 aluminum alloy pistons resist heat and detonation, while the forged 4340 steel crankshaft and H-beam rods provide the structural integrity needed to withstand extreme cylinder pressures. Clevite series bearings are included for both main and rod journals, ensuring reliable long-term performance across street and strip use.