Auto Barn
Est. 1957
Manley Performance

Manley Rotating Assembly, BBC 565 4.250 STROKE/4.600/+43cc

$4057.01

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Manley BBC 565 rotating assembly with 4.250" stroke. Built for serious power, supporting up to 1500 HP.

Key Features

  • Fits BBC 565 cubic inch engines.
  • Features a 4.250 inch stroke and 4.600 inch bore.
  • Includes a 4340 forged steel crankshaft for strength.
  • Comes with 4340 forged steel H-beam connecting rods.
  • Rods are equipped with 7/16" ARP 8740 cap screws, supporting up to 900 HP.
  • Optional ARP 2000 cap screws allow support for up to 1,500 HP.
This rotating assembly is designed for BBC 565 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 for high-horsepower applications, a robust rotating assembly is the heart of the build. This Manley Performance rotating assembly is designed for the 565 cubic inch displacement, featuring a 4.250-inch stroke and a 4.600-inch bore with a +43cc piston dish. It's a well-built foundation for engines aiming for significant power output.

At its core is a 4340 forged steel crankshaft, chosen for its strength and durability under high stress. Paired with this are 4340 forged steel H-beam connecting rods. These rods come standard with 7/16-inch ARP 8740 cap screws, capable of handling up to 900 horsepower. For those pushing the limits further, an option for ARP 2000 cap screws is available, allowing this assembly to support up to 1,500 horsepower. The pistons are forged aluminum from Manley's Platinum Series, featuring a +43cc dish and including Premium Chrome Moly wrist pins for reliable performance.

This assembly is a solid option for engine builders who need a strong, reliable rotating assembly for their BBC project. Please note that this part is not CARB approved and cannot be shipped to California. Always consult manufacturer documentation for complete installation details and specifications.

Specifications

Brand
Manley Performance
Manufacturer Part #
39565X
UPC
807298086989

Frequently Asked Questions

Manley Rotating Assembly, BBC 565 4.250 STROKE/4.600/+43cc

$4057.01