What is the horsepower rating for this rotating assembly?

With the standard 7/16-inch ARP 8740 cap screws on the connecting rods, this assembly is rated for up to 900 horsepower. If you opt for the upgrade to 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 constructed from 4340 forged steel. The pistons are 2618 forged aluminum from Manley's Platinum Series, and they include premium chrome moly wrist pins.

Are there any restrictions on shipping this part?

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

Specifications

Brand: Manley Performance
Part #: 38572X
UPC: 807298087085

Manley Rotating Assembly, BBC 572 4.250 STROKE/4.625/-3cc

Name: Manley Rotating Assembly, BBC 572 4.250 STROKE/4.625/-3cc
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-bbc-572-4-250-stroke-4-625-3cc-t14-881208
Price: 3795.58 USD
Availability: BackOrder

$3795.58

On Backorder

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

Manley Performance BBC 572 rotating assembly. 4.250" stroke, 4.625" bore. Supports up to 1500 HP.

Key Features

This rotating assembly fits BBC 572 applications with a 4.250-inch stroke and 4.625-inch bore.
Features a 4340 forged steel crankshaft for strength and durability.
Includes 4340 forged steel H-beam connecting rods with 7/16-inch ARP 8740 cap screws.
The assembly supports up to 900 horsepower with the standard ARP 8740 cap screws.
Optional ARP 2000 cap screws are available, raising the horsepower support to 1,500 HP.
Comes with 2618 forged aluminum Platinum Series pistons and premium chrome moly wrist pins.

This rotating assembly is designed for BBC 572 applications with a 4.250-inch stroke and 4.625-inch bore. It is not CARB approved and cannot be shipped 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

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

Manley Performance is well-known for making strong internal engine components, and this BBC 572 rotating assembly is a prime example of their commitment to robust builds. If you're putting together a serious big-block Chevrolet engine, this assembly is built to handle significant power and deliver reliable performance for demanding applications. It's designed for a 4.250-inch stroke and a 4.625-inch bore, making it a solid choice for a 572 cubic inch displacement.

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, capable of handling up to 900 horsepower. For those pushing the limits, there's an option to upgrade to ARP 2000 cap screws, which raises the horsepower ceiling to a substantial 1,500 HP. The pistons are 2618 forged aluminum from Manley's Platinum Series, known for their resilience, and they include premium chrome moly wrist pins for added strength.

This rotating assembly is a well-built foundation for a high-performance engine build. 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.