What is the horsepower rating for this rotating assembly?

With the included 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 materials are used in this rotating assembly?

The crankshaft and connecting rods are made from 4340 forged steel for strength. The pistons are 2618 forged aluminum, and the wrist pins are Premium Chrome Moly.

Specifications

Brand: Manley Performance
Part #: 29516RHXX
UPC: 807298087382

Manley Rotating Assembly, BBC 516 4.000 STROKE/4.530/+2cc

Name: Manley Rotating Assembly, BBC 516 4.000 STROKE/4.530/+2cc
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-bbc-516-4-000-stroke-4-530-2cc-t14-881174
Price: 3892.77 USD
Availability: BackOrder

$3892.77

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 performance engine components. This BBC rotating assembly features a 4.000 stroke for serious power.

Key Features

Fits BBC engines.
Includes a 4.000-inch stroke 4340 forged steel crankshaft.
Features 4340 forged steel H-beam connecting rods with 7/16-inch ARP 8740 cap screws.
Includes 2618 forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins.
Rated for up to 900 horsepower with ARP 8740 cap screws.
Can support up to 1,500 horsepower with optional ARP 2000 cap screws.

This rotating assembly is designed for BBC (Big Block Chevrolet) engines. Please verify compatibility with your specific engine configuration.

⚠️ 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 for demanding applications. This BBC rotating assembly is a prime example, designed to handle serious horsepower. It includes a 4.000-inch stroke crankshaft, H-beam connecting rods, and forged aluminum pistons, all engineered to work together as a balanced unit for your big block Chevrolet engine.

The heart of this assembly is the 4340 forged steel crankshaft, chosen for its strength and durability under high stress. Paired with it are 4340 forged steel H-beam connecting rods, which are known for their excellent strength-to-weight ratio. These rods come equipped with 7/16-inch ARP 8740 cap screws, providing a strong connection. For even higher horsepower demands, optional ARP 2000 cap screws are available, allowing this assembly to support up to 1,500 horsepower.

The pistons are Manley's 2618 forged aluminum Platinum Series, a material chosen for its ability to withstand high temperatures and pressures. They come with Premium Chrome Moly wrist pins, which are strong and wear-resistant. This complete rotating assembly is a well-built foundation for a high-performance engine build, capable of handling up to 900 horsepower with the standard ARP 8740 bolts, or up to 1,500 horsepower when upgraded to ARP 2000 bolts. Please note that this assembly is not CARB approved and cannot be shipped to California.