What is the horsepower rating for this rotating assembly?

With the standard 7/16? 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?

The crankshaft is constructed from 4340 forged steel for strength. The connecting rods are also made from 4340 forged steel in an H-beam design.

Does this assembly come with wrist pins?

Yes, the 2618 forged aluminum Platinum Series pistons included in this assembly come with premium chrome moly wrist pins.

Specifications

Brand: Manley Performance
Part #: 29582HX
UPC: 807298087597

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-t14-880950
Price: 4083.56 USD
Availability: BackOrder

$4083.56

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 BBC builds.

Key Features

Fits Big Block Chevrolet (BBC) engines.
Features a 4.375 inch stroke and 4.600 inch bore.
Includes 2618 forged aluminum Platinum Series pistons with a 43cc dish volume.
Comes with 4340 forged steel H-beam connecting rods.
Equipped with 7/16? ARP 8740 cap screws for the connecting rods.
Capable of supporting up to 900 horsepower with ARP 8740 cap screws.

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

Manley Performance is well-known for making strong internal engine components, and this BBC rotating assembly is a prime example of their commitment to building parts that can handle serious power. This 582ci assembly is designed for big-block Chevrolet engines and features a 4.375-inch stroke with a 4.600-inch bore, and pistons with a 43cc dish volume. It’s a complete package ready to be the heart of a powerful engine build.

At the core 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? ARP 8740 cap screws, a solid choice for builds up to 900 horsepower. If your build is pushing the limits, you can opt for ARP 2000 cap screws, which will support up to 1,500 horsepower. The pistons are Manley's Platinum Series, made from 2618 forged aluminum for a good balance of strength and light weight, and they include premium chrome moly wrist pins.

This rotating assembly is a substantial piece for anyone building a high-performance big-block Chevrolet. Keep in mind 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.