What is the horsepower rating for this Manley rotating assembly?

With the standard ARP 8740 cap screws on the connecting rods, this assembly is rated for up to 900 horsepower. If you upgrade to the optional ARP 2000 cap screws, the rating increases to 1,500 horsepower.

What materials are used in this rotating assembly?

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

What is included with this rotating assembly?

This rotating assembly includes the crankshaft, H-beam connecting rods with ARP 8740 cap screws, and 2618 forged aluminum pistons with wrist pins. Other necessary components for engine assembly are sold separately.

Specifications

Brand: Manley Performance
Part #: 28598HX
UPC: 807298079844

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-t14-881079
Price: 3901.82 USD
Availability: BackOrder

$3901.82

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 is known for well-built engine components. This BBC 598 rotating assembly features a 4.500" stroke and supports up to 1500 HP.

Key Features

This rotating assembly fits BBC (Big Block Chevrolet) engines.
It includes a 4340 forged steel crankshaft with a 4.500-inch stroke.
The assembly features 4340 forged steel H-beam connecting rods.
Connecting rods are equipped with 7/16-inch ARP 8740 cap screws, with an option for ARP 2000.
Pistons are 2618 forged aluminum Platinum Series with premium chrome moly wrist pins.
The pistons have a -3cc dish volume and are designed for a 4.600-inch bore.

This rotating assembly is designed for BBC (Big Block Chevrolet) engines. Compatibility with specific engine blocks and configurations should be verified.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

Manley Performance has a solid reputation for building robust engine components, and this BBC 598 rotating assembly is a prime example of their commitment to strength and reliability. If you're looking to build a serious big-block Chevrolet engine, this assembly is designed to handle significant power. It features a 4.500-inch stroke and is designed for a 4.600-inch bore with -3cc dish pistons, setting the stage for a powerful combination.

At the heart of this assembly is a 4340 forged steel crankshaft, chosen for its inherent strength and ability to withstand 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, a well-known fastener for reliable performance. For those pushing the limits, there's an option to upgrade to ARP 2000 cap screws, which significantly increases the horsepower range this assembly can support. The pistons are forged from 2618 aluminum, part of Manley's Platinum Series, and include premium chrome moly wrist pins for durability under extreme conditions.

With the standard ARP 8740 cap screws, this rotating assembly is rated for up to 900 horsepower. If you opt for the ARP 2000 cap screws, that rating jumps to an impressive 1,500 horsepower. This makes it a versatile choice for a wide range of high-performance builds, from strong street engines to dedicated race applications. Please note that this assembly is not CARB approved and cannot be shipped to California. Always refer to manufacturer instructions for proper installation and assembly procedures.