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 ARP 2000 cap screws, the rating increases to 1,500 horsepower.

What material are the crankshaft and connecting rods made from?

Both the crankshaft and the connecting rods are constructed from strong 4340 forged steel, ensuring durability for high-performance applications.

Are there any restrictions on shipping this part?

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

Specifications

Brand: Manley Performance
Part #: 29582X
UPC: 807298087641

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-t14-880957
Price: 3977.32 USD
Availability: BackOrder

$3977.32

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 with forged steel and aluminum for high-horsepower BBC builds.

Key Features

Fits Big Block Chevrolet (BBC) engines.
Features a 4340 forged steel crankshaft with a 4.375-inch stroke.
Includes 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 capacity.
Comes with 2618 forged aluminum Platinum Series pistons.
Pistons have a +43cc dish volume for a 582 cubic inch displacement with a 4.600-inch bore.

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

This Manley rotating assembly starts with a 4340 forged steel crankshaft, the backbone for serious BBC builds. It's designed for a 4.375-inch stroke and a 4.600-inch bore, with a +43cc piston dish volume. This combination is key for achieving the 582 cubic inch displacement.

The connecting rods are also made from strong 4340 forged steel, featuring an H-beam design. They come equipped with 7/16-inch ARP 8740 cap screws, which are rated for up to 900 horsepower. If your build demands more, you can opt for ARP 2000 cap screws, pushing the rod's capability to an impressive 1,500 horsepower. The pistons are 2618 forged aluminum from Manley's Platinum Series, including Premium Chrome Moly wrist pins for durability under stress.

This assembly is a well-built foundation for a high-performance Big Block Chevrolet engine. 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.