What is the horsepower rating for this rotating assembly?

With the standard ARP 8740 cap screws, 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 Manley rotating assembly?

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

Specifications

Brand: Manley Performance
Part #: 38572R
UPC: 807298087030

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-t14-881203
Price: 3888.15 USD
Availability: BackOrder

$3888.15

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

Fits BBC 572 engines with a 4.250 inch stroke and 4.625 inch bore.
Includes a 4340 forged steel crankshaft for robust performance.
Features 4340 forged steel H-beam connecting rods with 7/16? ARP 8740 cap screws.
Optional upgrade to ARP 2000 cap screws is available for increased strength.
Comes with 2618 forged aluminum Platinum Series pistons and Premium Chrome Moly wrist pins.
Rated for up to 900 horsepower with ARP 8740 bolts.

This rotating assembly is designed for Big Block Chevrolet (BBC) 572 cubic inch engines 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

If you're building a serious big-block Chevrolet engine, this Manley Performance rotating assembly is a solid foundation. This kit is designed for the 572 cubic inch displacement with a 4.250 inch stroke and a 4.625 inch bore, featuring a -3cc piston dish. It's a well-built package that can handle significant power, making it a popular choice for performance builds.

At the heart of this assembly is a 4340 forged steel crankshaft, chosen for its strength and reliability 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, but you have the option to upgrade to ARP 2000 cap screws for even greater strength. The pistons are 2618 forged aluminum Platinum Series, known for their durability and heat resistance, and they include Premium Chrome Moly wrist pins.

With the standard ARP 8740 bolts, this assembly is rated for up to 900 horsepower. If you opt for the ARP 2000 cap screws, that rating increases to an impressive 1,500 horsepower. This makes it suitable for a wide range of high-performance applications, from street machines to dedicated drag racing engines. Please note that this assembly is not CARB approved and cannot be shipped to California.