Specifications
- Brand
- Manley Performance
- Part #
- 39565RX
- UPC
- 807298086972

Manley Rotating Assembly, BBC 565 4.250 STROKE/4.600/+43cc
$4167.36
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Manley Rotating Assembly, BBC 565 4.250 STROKE/4.600/+43cc. A well-built rotating assembly for high-horsepower BBC builds.
Key Features
- Fits Big Block Chevrolet (BBC) engines.
- Features a 4.250 inch stroke crankshaft made from 4340 forged steel.
- Includes 4340 forged steel H-beam connecting rods with 7/16" ARP 8740 cap screws.
- Optional ARP 2000 cap screws are available for increased horsepower support.
- 2618 forged aluminum Platinum Series pistons come with premium chrome moly wrist pins.
- Rated for up to 900 horsepower with standard ARP 8740 cap screws.
⚠️ 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
Product Details
If you're building a big block Chevrolet (BBC) engine and aiming for serious power, this Manley rotating assembly is a solid foundation. This specific kit is designed for a 565 cubic inch displacement, featuring a 4.250-inch stroke crankshaft and pistons with a +43cc volume. It's a complete package engineered to handle significant output, whether you're building a street-strip monster or a dedicated race engine.
At the heart of this assembly is a 4340 forged steel crankshaft, chosen for its strength and reliability 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, a robust choice 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 pistons are forged from 2618 aluminum, part of Manley's Platinum Series, and include premium chrome moly wrist pins for durability.
This is a comprehensive rotating assembly, meaning it includes the critical components needed to get your engine rotating. It's important to note that this assembly is not CARB approved and cannot be shipped to California. Always consult your engine builder and the manufacturer's instructions for proper installation and balancing procedures to ensure optimal performance and longevity.
Specifications
- Brand
- Manley Performance
- Manufacturer Part #
- 39565RX
- UPC
- 807298086972
Frequently Asked Questions
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Manley Rotating Assembly, BBC 565 4.250 STROKE/4.600/+43cc
