What is the horsepower rating for this rotating assembly?

With the standard 7/16" 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 material are the crankshaft and connecting rods made from?

Both the crankshaft and the H-beam connecting rods are constructed from 4340 forged steel, a material known for its exceptional strength and resistance to fatigue under high loads.

Are the pistons included with this assembly?

Yes, this rotating assembly includes 2618 forged aluminum Platinum Series pistons, which are designed for high-performance applications and come with premium chrome moly wrist pins.

Specifications

Brand: Manley Performance
Part #: 28572RH
UPC: 807298079837

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-t14-881072
Price: 3921.70 USD
Availability: BackOrder

$3921.70

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 a 4.250" stroke. Built for serious power, handling 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 strength and durability.
Features 4340 forged steel H-beam connecting rods.
Connecting rods come with 7/16" ARP 8740 cap screws, supporting up to 900 HP.
Optional ARP 2000 cap screws are available for increased horsepower capacity up to 1,500 HP.
2618 forged aluminum Platinum Series pistons are included.

This rotating assembly is designed for Big Block Chevrolet (BBC) 572 cubic inch engines. Check manufacturer specifications to confirm compatibility with your specific engine build.

⚠️ 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

If you're building a serious big block Chevrolet engine, a strong rotating assembly is the heart of the operation. This Manley rotating assembly is designed for the 572 cubic inch platform, featuring a 4.250 inch stroke and a 4.625 inch bore with a -3cc piston dish. It's a well-built foundation for a high-performance engine that can handle significant power.

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 engines up to 900 horsepower. For those pushing the limits further, optional ARP 2000 cap screws are available, allowing this assembly to reliably handle up to 1,500 horsepower.

The pistons are Manley's Platinum Series, made from 2618 forged aluminum, known for its strength and ability to withstand high temperatures and pressures. They include premium chrome moly wrist pins for added durability. This assembly is a robust option for anyone looking to build a powerful BBC engine, but please note it is not CARB approved and cannot be shipped to California.