Auto Barn
Est. 1957
Manley Performance

Manley Rotating Assembly, BBC 572 4.250 STROKE/4.625/-3cc

$3826.24

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Manley BBC 572 rotating assembly with a 4.250" stroke. Features forged steel crank and rods for high-horsepower builds.

Key Features

  • Fits BBC 572 applications with a 4.250" stroke and 4.625" bore.
  • Includes a 4340 forged steel crankshaft for robust performance.
  • Features 4340 forged steel H-beam connecting rods.
  • Connecting rods are equipped with 7/16" ARP 8740 cap screws, supporting up to 900 horsepower.
  • Optional ARP 2000 cap screws are available for connecting rods, supporting up to 1,500 horsepower.
  • Comes with 2618 forged aluminum Platinum Series pistons and premium chrome moly wrist pins.
This rotating assembly is designed for BBC 572 applications. 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

This Manley BBC 572 rotating assembly is built for serious big-block Chevrolet engine builds, specifically designed for a 4.250 inch stroke and 4.625 inch bore with a -3cc piston dish. If you're looking to build a powerful street or strip engine, a well-matched rotating assembly is the heart of the operation, and Manley has a solid reputation for making parts that hold up under pressure.

At the core of this assembly is a 4340 forged steel crankshaft, chosen for its strength and ability to handle the stresses of high-RPM operation. Paired with it are 4340 forged steel H-beam connecting rods. These rods come standard with 7/16" ARP 8740 cap screws, a well-known name in high-strength fasteners, capable of handling up to 900 horsepower. For those pushing the limits even further, there's an option to upgrade to ARP 2000 cap screws, which can support up to 1,500 horsepower. The assembly also includes 2618 forged aluminum Platinum Series pistons, known for their durability and thermal stability, complete with premium chrome moly wrist pins for reliable operation.

When assembling a performance engine, the quality and balance of the rotating assembly are critical. This Manley package provides a strong foundation for your BBC build, offering the components you need to achieve significant horsepower. Keep in mind that this assembly is not CARB approved and cannot be shipped to California. Always ensure proper balancing and assembly procedures are followed by a qualified professional for optimal performance and longevity.

Specifications

Brand
Manley Performance
Manufacturer Part #
28572RX
UPC
807298089737

Frequently Asked Questions

Manley Rotating Assembly, BBC 572 4.250 STROKE/4.625/-3cc

$3826.24