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 choose the optional ARP 2000 cap screws, the rating increases to 1,500 horsepower.

What components are included in this rotating assembly kit?

This kit includes a 4340 forged steel crankshaft with a 4.250-inch stroke, 4340 forged steel H-beam connecting rods with ARP 8740 cap screws, and 2618 forged aluminum pistons with a -3cc dish and premium chrome moly wrist pins.

Can this rotating assembly be shipped to California?

No, this rotating assembly is not CARB approved and therefore cannot be shipped to California.

Specifications

Brand: Manley Performance
Part #: 38572HX
UPC: 807298087016

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-t14-881201
Price: 3901.82 USD
Availability: BackOrder

$3901.82

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. Includes forged crankshaft, H-beam connecting rods, and pistons.

Key Features

This rotating assembly includes a 4340 forged steel crankshaft with a 4.250-inch stroke.
It comes with 4340 forged steel H-beam connecting rods fitted with 7/16-inch ARP 8740 cap screws.
The kit includes 2618 forged aluminum Platinum Series pistons with a -3cc dish.
Premium chrome moly wrist pins are included with the pistons.
This assembly is rated for up to 900 horsepower with the ARP 8740 cap screws.
With optional ARP 2000 cap screws, the horsepower range is increased to 1,500.

This rotating assembly is specifically designed for BBC 572 engines. Please consult with a professional or refer to manufacturer specifications to ensure 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 rotating assembly for a BBC 572 engine includes a 4340 forged steel crankshaft with a 4.250-inch stroke, 4340 forged steel H-beam connecting rods, and 2618 forged aluminum Platinum Series pistons with a -3cc dish. This is a well-built package designed for serious engine builds where strength and reliability are paramount.

The crankshaft is forged from 4340 steel, a strong material that can handle significant stress. The H-beam connecting rods are also forged from 4340 steel and come equipped with 7/16-inch ARP 8740 cap screws, though optional ARP 2000 cap screws are available for even greater strength. The pistons are made from 2618 forged aluminum, a popular choice for high-performance applications due to its durability and ability to withstand high temperatures. They also include premium chrome moly wrist pins for added longevity.

This assembly is rated for up to 900 horsepower when using the standard ARP 8740 cap screws. If you opt for the ARP 2000 cap screws, the horsepower range increases to a notable 1,500 horsepower. Please be aware that this assembly is not CARB approved and cannot be shipped to California. It's a solid option for builders looking for a robust rotating assembly for their BBC 572 project.