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. If you opt for the ARP 2000 cap screws, the rating increases to 1,500 horsepower.

What is included in this Manley rotating assembly?

This assembly 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 #: 28598H
UPC: 807298079899

Manley Rotating Assembly, BBC 598 4.500 STROKE/4.600/-3cc

Name: Manley Rotating Assembly, BBC 598 4.500 STROKE/4.600/-3cc
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-bbc-598-4-500-stroke-4-600-3cc-t14-881078
Price: 3891.03 USD
Availability: BackOrder

$3891.03

On Backorder

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

Manley Performance BBC 598 rotating assembly for high-performance builds. Features a 4.500" stroke and -3cc pistons, supporting up to 1500 HP.

Key Features

Fits Big Block Chevrolet (BBC) engines.
Includes a 4340 forged steel crankshaft with a 4.500-inch stroke.
Features 4340 forged steel H-beam connecting rods with 7/16-inch ARP 8740 cap screws.
Optional ARP 2000 cap screws are available for connecting rods, supporting up to 1,500 horsepower.
2618 forged aluminum Platinum Series pistons with premium chrome moly wrist pins are included.
The pistons have a -3cc dish volume.

This rotating assembly is designed for Big Block Chevrolet (BBC) engines. Always confirm compatibility with your specific engine block and build specifications.

⚠️ 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, a well-matched rotating assembly is the heart of the operation. This Manley Performance BBC 598 rotating assembly is built for those who demand serious power and reliability. It's designed around a 4.500-inch stroke crankshaft and a 4.600-inch bore, with -3cc dish pistons that help achieve a specific compression ratio for your build.

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, optional ARP 2000 cap screws are available, raising the horsepower ceiling to a robust 1,500 HP. The pistons are forged from 2618 aluminum, part of Manley's Platinum Series, and include premium chrome moly wrist pins for added strength and longevity.

This assembly is a solid foundation for a high-performance engine build. Please note 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.