What is the horsepower rating for this rotating assembly?

This Manley rotating assembly is rated for 900 horsepower with the standard ARP 8740 cap screws. With the optional ARP 2000 cap screws, it can support up to 1,500 horsepower.

What materials are the crankshaft, rods, and pistons made from?

The crankshaft and connecting rods are made from 4340 forged steel. The pistons are forged aluminum from Manley's Platinum Series.

Specifications

Brand: Manley Performance
Part #: 39582RHXX
UPC: 807298087269

Manley Rotating Assembly, BBC 582 4.375 STROKE/4.600/+43cc

Name: Manley Rotating Assembly, BBC 582 4.375 STROKE/4.600/+43cc
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-bbc-582-4-375-stroke-4-600-43cc-t14-881022
Price: 4291.39 USD
Availability: BackOrder

$4291.39

On Backorder

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Manley BBC 582 rotating assembly, 4.375 stroke/4.600 bore. Built for serious power.

Key Features

Fits BBC engines with a 4.375" stroke and 4.600" bore.
Includes a 4340 forged steel crankshaft for strength.
Features 4340 forged steel H-beam connecting rods with 7/16" ARP 8740 cap screws.
Optional ARP 2000 cap screws are available for increased horsepower capacity.
Comes with 2618 forged aluminum Platinum Series pistons.
Includes Premium Chrome Moly wrist pins.

This rotating assembly is designed for Big Block Chevrolet (BBC) engines. Check manufacturer specifications to confirm compatibility with your specific engine build.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

If you're building a serious big-block Chevrolet engine and need a foundation that can handle significant power, a well-built rotating assembly is key. This Manley BBC 582 rotating assembly is designed for those who are pushing the limits, offering a robust combination of components ready for high-performance applications.

At the heart of this assembly is a 4340 forged steel crankshaft, chosen for its strength and durability under high stress. Paired with it are 4340 forged steel H-beam connecting rods, which come equipped with 7/16? ARP 8740 cap screws. For even more demanding builds, there's an option to upgrade to ARP 2000 cap screws, allowing this assembly to handle up to 1,500 horsepower. The pistons are forged aluminum from Manley's Platinum Series, featuring Premium Chrome Moly wrist pins for reliable operation. This combination is engineered to provide a solid platform for your high-output engine build.

This assembly is rated for 900 horsepower with the standard ARP 8740 cap screws, but with the optional ARP 2000 upgrade, it's capable of supporting up to 1,500 horsepower. Please note that this assembly is not CARB approved and cannot be shipped to California. Always refer to manufacturer instructions for proper installation and torque specifications.