What is the horsepower rating for this rotating assembly?

With the standard ARP 8740 cap screws on the connecting rods, this assembly is rated for up to 900 horsepower. If you upgrade to the optional ARP 2000 cap screws, the rating increases to 1,500 horsepower.

What materials are used in this rotating assembly?

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

Specifications

Brand: Manley Performance
Part #: 29582
UPC: 807298080390

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-t14-880948
Price: 3959.53 USD
Availability: BackOrder

$3959.53

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 big power.

Key Features

Fits BBC (Big Block Chevrolet) engines with a 582 cubic inch displacement.
Features a 4.375-inch stroke and a 4.600-inch bore.
Includes a 4340 forged steel crankshaft for strength and durability.
Comes with 4340 forged steel H-beam connecting rods with 7/16" ARP 8740 cap screws.
Includes 2618 forged aluminum Platinum Series pistons with premium chrome moly wrist pins.
Rated for up to 900 horsepower with standard ARP 8740 cap screws.

This rotating assembly is designed for BBC (Big Block Chevrolet) engines with specific bore and stroke dimensions. Please verify compatibility with your 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

Secure CheckoutFast Shipping631-982-0042

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 a 4.600-inch bore. It’s a well-built package designed to handle serious power output, making it a solid choice for a high-performance engine build.

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, but you can opt for ARP 2000 cap screws for even greater strength. The pistons are 2618 forged aluminum from Manley's Platinum Series, complete with premium chrome moly wrist pins. This combination of materials and construction is engineered to withstand the demands of powerful engines.

With the standard ARP 8740 cap screws on the connecting rods, this assembly is rated for up to 900 horsepower. If you opt for the upgraded ARP 2000 cap screws, the assembly is capable of handling an impressive 1,500 horsepower. Please note that this assembly is not CARB approved and cannot be shipped to California. It is a significant component for anyone looking to build a high-horsepower BBC engine.