What horsepower levels can this rotating assembly handle?

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 horsepower range increases to 1,500.

What components are included in this rotating assembly?

This Manley Performance rotating assembly includes a 4340 forged steel crankshaft, 4340 forged steel H-beam connecting rods with ARP 8740 cap screws, and 2618 forged aluminum pistons with Premium Chrome Moly wrist pins.

Specifications

Brand: Manley Performance
Part #: 29572RHX
UPC: 807298087559

Manley Rotating Assembly, BBC 572 4.250 STROKE/4.625/+43cc

Name: Manley Rotating Assembly, BBC 572 4.250 STROKE/4.625/+43cc
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-bbc-572-4-250-stroke-4-625-43cc-t14-880944
Price: 4193.92 USD
Availability: BackOrder

$4193.92

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 572 Rotating Assembly with 4.250" stroke and 43cc dish pistons. Handles up to 1500 HP.

Key Features

This rotating assembly includes a 4340 forged steel crankshaft, 4340 forged steel H-beam connecting rods, and 2618 forged aluminum pistons.
The connecting rods are equipped with 7/16" ARP 8740 cap screws.
Optional ARP 2000 cap screws are available, allowing the assembly to handle up to 1,500 horsepower.
The 2618 forged aluminum pistons have a 43cc dish volume and come with Premium Chrome Moly wrist pins.
With the standard ARP 8740 cap screws, this assembly is rated for up to 900 horsepower.
This part is not CARB approved and cannot be shipped to California.

This is a general Big Block Chevrolet (BBC) rotating assembly. Check manufacturer specifications to ensure compatibility with your specific engine block and build requirements.

⚠️ 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

When you're building a serious BBC 572ci engine, starting with a well-matched rotating assembly is key. This Manley Performance rotating assembly includes a 4340 forged steel crankshaft, 4340 forged steel H-beam connecting rods, and 2618 forged aluminum pistons. It's designed to handle significant power, giving you a solid foundation for your build.

The crankshaft is forged from 4340 steel for strength. The H-beam connecting rods are also forged from 4340 steel and come equipped with 7/16" ARP 8740 cap screws. If you plan on pushing the limits, you can opt for ARP 2000 cap screws, which allow this assembly to handle up to 1,500 horsepower. The pistons are forged from 2618 aluminum and feature a 43cc dish volume, paired with Premium Chrome Moly wrist pins for durability. With the standard ARP 8740 bolts, this assembly is rated for up to 900 horsepower.

This rotating assembly is a substantial component for a high-performance engine build. Please note 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.