What is the horsepower rating for this rotating assembly?

This Manley rotating assembly is rated for 900 horsepower when using the standard ARP 8740 cap screws. With the optional ARP 2000 cap screws, the assembly can support up to 1,500 horsepower.

What materials are used in this rotating assembly?

The crankshaft and connecting rods are forged from 4340 steel for high strength. The pistons are forged from 2618 aluminum and include premium chrome moly wrist pins.

Does this rotating assembly come balanced?

This rotating assembly is typically sold as a set of components. While Manley manufactures these parts to high standards, professional balancing is recommended for optimal performance and longevity in high-performance engine builds.

Specifications

Brand: Manley Performance
Part #: 28598RHXX
UPC: 807298079875

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-t14-881084
Price: 4029.96 USD
Availability: BackOrder

$4029.96

On Backorder

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

Manley BBC 598 rotating assembly, 4.500" stroke/4.600" bore. Supports up to 1500 HP.

Key Features

Fits BBC (Big Block Chevrolet) engines with a 598 cubic inch displacement.
Includes a 4340 forged steel crankshaft for strength and durability.
Features 4340 forged steel H-beam connecting rods with 7/16" ARP 8740 cap screws.
Comes with 2618 forged aluminum Platinum Series pistons and premium chrome moly wrist pins.
Rated for 900 horsepower with standard ARP 8740 bolts.
Can support up to 1,500 horsepower with optional ARP 2000 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

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About this part

Product Details

If you're building a serious big-block Chevrolet engine for high-performance street or track use, a robust rotating assembly is the heart of the operation. This Manley Performance BBC 598 rotating assembly is designed to handle significant power, giving you a solid foundation for your project. It includes a forged steel crankshaft, forged steel connecting rods, and forged aluminum pistons, all engineered to work together reliably under demanding conditions.

The crankshaft is forged from 4340 steel, a strong material that resists bending and twisting even when subjected to high cylinder pressures. Paired with this are H-beam connecting rods, also made from 4340 forged steel, which are known for their strength-to-weight ratio. These rods come equipped with 7/16-inch ARP 8740 cap screws, with an option to upgrade to ARP 2000 fasteners for even greater strength, allowing for horsepower ranges up to 1,500 HP. The pistons are Manley's Platinum Series, forged from 2618 aluminum and include premium chrome moly wrist pins, designed for durability and performance. This assembly is rated for 900 horsepower with the standard ARP 8740 bolts and can handle up to 1,500 horsepower when equipped with the optional ARP 2000 cap screws.

When assembling a high-performance engine, ensuring all components are balanced and compatible is crucial. This Manley rotating assembly provides a well-matched set of core components, simplifying the balancing process and ensuring you have a strong starting point. Please note that this assembly is not CARB approved and cannot be shipped to California. Always consult the manufacturer's detailed specifications and installation guidelines for proper assembly and break-in procedures.