What is the horsepower rating for this rotating assembly?

With the standard 7/16-inch ARP 8740 cap screws on the connecting rods, this assembly is rated for up to 900 horsepower. An optional upgrade to ARP 2000 cap screws increases the capacity to 1,500 horsepower.

What is included in this Manley rotating assembly?

This kit includes a 4340 forged steel crankshaft, 4340 forged steel H-beam connecting rods with ARP 8740 cap screws, and 2618 forged aluminum Platinum Series pistons with premium chrome moly wrist pins.

Specifications

Brand: Manley Performance
Part #: 29598RH
UPC: 807298080468

Manley Rotating Assembly, BBC 582 4.375 STROKE/4.600/+43cc

Name: Manley Rotating Assembly, BBC 582 4.375 STROKE/4.600/+43cc
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-bbc-582-4-375-stroke-4-600-43cc-t14-880963
Price: 4262.81 USD
Availability: BackOrder

$4262.81

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Rotating Assembly, BBC 582 4.375 STROKE/4.600/+43cc. Built for high-horsepower BBC engines.

Key Features

This rotating assembly fits Big Block Chevrolet (BBC) engines.
Features a 4.375-inch stroke and a 4.600-inch bore with a +43cc piston dish for a 582 cubic inch displacement.
Includes a 4340 forged steel crankshaft for strength and durability.
Comes with 4340 forged steel H-beam connecting rods fitted with 7/16-inch ARP 8740 cap screws.
The included 2618 forged aluminum Platinum Series pistons are paired with premium chrome moly wrist pins.
Capable of handling up to 900 horsepower with the standard ARP 8740 cap screws.

This rotating assembly is designed for Big Block Chevrolet (BBC) 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 (BBC) engine, this Manley rotating assembly is a solid foundation. This kit is designed for a 582 cubic inch displacement, featuring a 4.375-inch stroke and a 4.600-inch bore with a +43cc piston dish. It's engineered to handle significant power, making it a popular choice for performance builds where reliability under stress is key.

At the heart of this assembly is a 4340 forged steel crankshaft, known for its strength and durability under high loads. Paired with it 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, there's an option to upgrade to ARP 2000 cap screws, which can support up to 1,500 horsepower. The pistons are 2618 forged aluminum from Manley's Platinum Series, complete with premium chrome moly wrist pins, ensuring they can withstand the intense pressures and temperatures of a high-performance engine.

This assembly is a comprehensive package for engine builders looking for well-made components that work together seamlessly. Keep in mind that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and torque specifications.