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

What materials are used in this Manley rotating assembly?

The crankshaft and connecting rods are made from 4340 forged steel. The pistons are constructed from 2618 forged aluminum, and the wrist pins are Premium Chrome Moly.

Can this rotating assembly be shipped to California?

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

Specifications

Brand: Manley Performance
Part #: 39582R
UPC: 807298087238

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-t14-881019
Price: 4149.58 USD
Availability: BackOrder

$4149.58

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. Includes forged steel crank, H-beam rods, and forged aluminum pistons.

Key Features

This rotating assembly includes a 4340 forged steel crankshaft.
It comes with 4340 forged steel H-beam connecting rods.
The connecting rods feature 7/16? ARP 8740 or optional ARP 2000 cap screws.
Included are 2618 forged aluminum Platinum Series pistons.
Premium Chrome Moly wrist pins are included with the pistons.
This assembly is rated for up to 900 horsepower with ARP 8740 fasteners.

⚠️ 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 includes a 4340 forged steel crankshaft, 4340 forged steel H-beam connecting rods with 7/16? ARP 8740 or optional ARP 2000 cap screws, and 2618 forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins. This is a well-built package designed for serious engine builds.

The 4340 forged steel crankshaft is a strong foundation for your BBC engine. Paired with the H-beam connecting rods, which are also forged from 4340 steel, this assembly is built to handle significant stress. The rods come standard with ARP 8740 cap screws, capable of handling up to 900 horsepower. If your build demands more, you can opt for ARP 2000 cap screws, which can support up to 1,500 horsepower. The 2618 forged aluminum pistons are part of Manley's Platinum Series, known for their durability and performance, and they come complete with Premium Chrome Moly wrist pins for added strength.

This assembly is intended for high-performance applications and is not CARB approved, meaning it cannot be shipped to California. Please ensure this part meets your local emissions regulations before purchasing.