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 opt for the upgrade to ARP 2000 cap screws, it can support up to 1,500 horsepower.

What specific engine configuration is this assembly designed for?

This assembly is intended for Big Block Chevrolet (BBC) engines and is configured for a 4.375-inch stroke, a 4.600-inch bore, and features pistons with a +43cc dish.

Are there any restrictions on shipping this product?

Yes, this rotating assembly is not CARB approved and therefore cannot be shipped to California due to emissions regulations.

Specifications

Brand: Manley Performance
Part #: 29582RX
UPC: 807298087634

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-t14-880956
Price: 4087.67 USD
Availability: BackOrder

$4087.67

On Backorder

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

Manley BBC 582 Rotating Assembly, 4.375" stroke. Built for high-horsepower BBC builds.

Key Features

This rotating assembly fits BBC engines with a 4.375-inch stroke and 4.600-inch bore.
Includes a crankshaft forged from strong 4340 steel for durability.
Features 4340 forged steel H-beam connecting rods with 7/16-inch ARP 8740 cap screws.
The included 2618 forged aluminum pistons are Manley's Platinum Series.
Comes with premium chrome moly wrist pins for added longevity.
Rated for up to 900 horsepower with the standard ARP 8740 cap screws.

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 serious power, a complete rotating assembly like this one from Manley Performance is a smart way to go. This BBC 582 assembly is designed for a 4.375-inch stroke and features a 4.600-inch bore with a +43cc piston dish, making it a robust package for performance builds.

At the heart of this assembly is a crankshaft forged from 4340 steel, known for its strength and durability under high stress. Paired with it are 4340 forged steel H-beam connecting rods, which are a popular choice for performance applications. These rods come equipped with 7/16-inch ARP 8740 cap screws, capable of handling up to 900 horsepower. For those pushing the limits even further, an upgrade to optional ARP 2000 cap screws is available, allowing this assembly to support up to 1,500 horsepower.

The pistons are Manley's Platinum Series, made from 2618 forged aluminum for a strong yet lightweight component. They include premium chrome moly wrist pins, which are well-regarded for their durability. This complete package takes the guesswork out of matching critical engine components, ensuring you have a well-built rotating assembly ready for your high-performance BBC project. Please note this assembly is not CARB approved and cannot be shipped to California.