What is the horsepower rating for this rotating assembly?

This Manley rotating assembly is rated for up to 900 horsepower when using the standard ARP 8740 cap screws on the connecting rods. With the optional ARP 2000 cap screws, the assembly can support up to 1,500 horsepower.

What materials are used in this rotating assembly?

The crankshaft and connecting rods are made from strong 4340 forged steel. The pistons are forged aluminum from Manley's Platinum Series, and they come with premium chrome moly wrist pins.

Specifications

Brand: Manley Performance
Part #: 38572RH
UPC: 807298087047

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-t14-881204
Price: 4001.40 USD
Availability: BackOrder

$4001.40

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 4.625" bore. Built for high-horsepower BBC builds.

Key Features

Fits Big Block Chevrolet (BBC) 572 engines.
Features a 4.250 inch stroke and 4.625 inch bore.
Includes a 4340 forged steel crankshaft for strength.
Comes with 4340 forged steel H-beam connecting rods.
Connecting rods use 7/16" ARP 8740 cap screws, with optional ARP 2000 available.
Forged aluminum Platinum Series pistons have a -3cc dish and include premium chrome moly wrist pins.

This rotating assembly is designed for Big Block Chevrolet (BBC) 572 engines. Please verify 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

This Manley Performance rotating assembly is built for the big-block Chevrolet 572 engine, featuring a 4.250-inch stroke and a 4.625-inch bore. It's designed to handle serious power, making it a solid choice for engine builders looking to push the limits of their BBC.

At the heart of this assembly is a 4340 forged steel crankshaft, known 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, but you can opt for ARP 2000 cap screws for even more strength. The pistons are forged aluminum from Manley's Platinum Series, featuring a -3cc dish and coming with premium chrome moly wrist pins. This combination is well-built to support significant horsepower figures, rated up to 900 horsepower with the standard ARP 8740 bolts and up to 1,500 horsepower when using the optional ARP 2000 cap screws.

When rebuilding or building a high-performance big-block Chevrolet, a strong rotating assembly is crucial. This Manley package gives you the core components needed to create a powerful and reliable engine. Please note that this assembly is not CARB approved and cannot be shipped to California.