What is the horsepower rating for this rotating assembly?

This Manley rotating assembly is rated for up to 900 horsepower when using the standard ARP 8740 cap screws. With the optional ARP 2000 cap screws, the rating increases to 1,500 horsepower.

What materials are used in this rotating assembly?

The assembly features a 4340 forged steel crankshaft and 4340 forged steel H-beam connecting rods. The pistons are made from 2618 forged aluminum and include Premium Chrome Moly wrist pins.

Can this rotating assembly be shipped to California?

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

Specifications

Brand: Manley Performance
Part #: 29582R
UPC: 807298080413

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-t14-880952
Price: 4069.89 USD
Availability: BackOrder

$4069.89

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. A well-built rotating assembly for high-performance BBC engines.

Key Features

Fits Big Block Chevrolet (BBC) engines.
Features a 4.375-inch stroke and is designed for a 4.600-inch bore with +43cc piston dish volume.
Includes a 4340 forged steel crankshaft for strength and durability.
Comes with 4340 forged steel H-beam connecting rods equipped with 7/16-inch ARP 8740 cap screws.
Optional upgrade to ARP 2000 cap screws is available for higher horsepower applications.
Includes 2618 forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins.

This rotating assembly is specifically designed for Big Block Chevrolet (BBC) engines with a 582 cubic inch displacement, 4.375-inch stroke, and 4.600-inch bore. Check manufacturer specifications for complete compatibility details.

⚠️ 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 (BBC) engine, a strong rotating assembly is the heart of the operation. This Manley Performance rotating assembly is built for the 582 cubic inch application, featuring a 4.375-inch stroke and designed for a 4.600-inch bore with +43cc piston dish volume. It's a comprehensive package designed to handle significant power and provide a solid foundation for your build.

At its core is a 4340 forged steel crankshaft, chosen for its strength and durability under high stress. Complementing the crank are 4340 forged steel H-beam connecting rods. These rods come standard with 7/16-inch ARP 8740 cap screws, a popular choice for many performance builds. For those pushing the limits, there's an option to upgrade to ARP 2000 cap screws, which are rated for even higher horsepower applications. The pistons are forged from 2618 aluminum, a material known for its thermal expansion properties, and come with Premium Chrome Moly wrist pins for added strength and reliability. This combination is designed to handle up to 900 horsepower with the standard ARP 8740 bolts, and an impressive 1,500 horsepower when equipped with the optional ARP 2000 cap screws.

This assembly is a well-built option for serious engine builders. Please note that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and torque specifications.