Manley 29582X Big Block Chevy Stroker Rotating Assembly Kit Stroke Bore - 582ci 4.375 4.600 43cc

The Manley 29582X is a complete Big Block Chevy 582 cubic inch rotating assembly stroker kit engineered for serious high-performance and racing applications. Built around a 4.375-inch stroke crankshaft paired with a 4.600-inch bore and 43cc pistons, this kit delivers the displacement and rotating mass needed to produce massive torque and horsepower in a standard-deck BBC block.

Key Features:

• 582 CID displacement — achieved via 4.375" stroke and 4.600" bore combination
• Manley 4340 forged steel crankshaft — heat treated, stress relieved, shot peened, nitrided, and 100% magnafluxed for maximum strength and durability
• Micro-polished large-radius journals for reduced friction and extended bearing life (narrowed rod bearings required)
• Manley forged H-beam connecting rods — built to handle extreme horsepower with ARP cap screws
• Manley forged pistons — 43cc dish/dome volume matched to the 4.600" bore for proper compression ratio
• High-performance piston rings and Clevite® "H" Series rod and main engine bearings included
• "X" Series rod bearings — .001" extra clearance for builds requiring looser tolerances
• Horsepower range: up to 900 HP with ARP 8740 cap screws, up to 1,500 HP with optional ARP 2000 cap screws
• Designed for standard-deck Big Block Chevy blocks (4.375" stroke kits are for standard deck)

Manley Performance has been a trusted name in high-performance engine components since 1966, manufacturing connecting rods, pistons, crankshafts, and complete rotating assemblies for race and street applications. The 29582X is designed for builders who demand precision-engineered components capable of withstanding the extreme demands of high-displacement, high-output Big Block Chevy builds.

Note: Manley crankshafts are not intended for use with highly boosted roots-style cog belt superchargers. Precision balancing is available separately.