What is the horsepower rating for this rotating assembly?

With the standard 7/16-inch ARP 8740 cap screws, this assembly is rated for up to 900 horsepower. If you upgrade to the optional ARP 2000 cap screws, it can support up to 1,500 horsepower.

What materials are used in this Manley rotating assembly?

The crankshaft and connecting rods are made from 4340 forged steel. The pistons are 2618 forged aluminum, and the wrist pins are premium chrome moly.

Can this rotating assembly be shipped to California?

No, this assembly is not CARB approved and cannot be shipped to California due to emissions regulations.

Specifications

Brand: Manley Performance
Part #: 39582RX
UPC: 807298087276

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-t14-881023
Price: 4167.36 USD
Availability: BackOrder

$4167.36

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Rotating Assembly, BBC 582 4.375 STROKE/4.600/+43cc. Built for high horsepower applications.

Key Features

Fits BBC (Big Block Chevrolet) engines.
Features a 4.375-inch stroke and 4.600-inch bore for a 582 cubic inch displacement.
Includes a 4340 forged steel crankshaft for strength and durability.
Comes with 4340 forged steel H-beam connecting rods with 7/16-inch ARP 8740 cap screws.
Optional ARP 2000 cap screws are available for increased horsepower support.
Equipped with 2618 forged aluminum Platinum Series pistons and premium chrome moly wrist pins.

This rotating assembly is designed for BBC (Big Block Chevrolet) engines. It is not CARB approved and cannot be shipped to California.

⚠️ 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

This Manley Performance rotating assembly is built for BBC (Big Block Chevrolet) engines, specifically for a 582 cubic inch displacement with a 4.375-inch stroke and 4.600-inch bore. It's a well-built package designed to handle significant power, making it a solid choice for serious engine builds where performance is key.

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. These rods come standard with 7/16-inch ARP 8740 cap screws, a reliable choice for many performance applications. For those pushing the limits, there's an option to upgrade to ARP 2000 cap screws, which can support even higher horsepower levels. The pistons are Manley's 2618 forged aluminum Platinum Series, known for their lightweight yet strong construction, and they include premium chrome moly wrist pins for added durability.

This assembly is rated for up to 900 horsepower when using the standard ARP 8740 cap screws. If you opt for the ARP 2000 cap screws, the assembly is capable of handling up to 1,500 horsepower. Please note that this assembly is not CARB approved and cannot be shipped to California. It's a comprehensive rotating assembly ready to form the foundation of a powerful engine.