What is the horsepower rating for this rotating assembly?

With the standard ARP 8740 cap screws on the connecting rods, this assembly is rated for up to 900 horsepower. Upgrading to ARP 2000 cap screws increases the horsepower support to 1,500 HP.

What materials are used in this rotating assembly?

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

Specifications

Brand: Manley Performance
Part #: 29516RHX
UPC: 807298087375

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-t14-881173
Price: 3874.98 USD
Availability: BackOrder

$3874.98

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Manley Performance BBC Rotating Assembly, 4.000 stroke, 4.530 bore. Built for high-horsepower applications.

Key Features

Fits BBC (Big Block Chevrolet) engines.
Features a 4.000-inch stroke and 4.530-inch bore.
Includes a 4340 forged steel crankshaft for strength.
Comes with 4340 forged steel H-beam connecting rods.
Connecting rods use 7/16? ARP 8740 cap screws, supporting up to 900 horsepower.
Optional ARP 2000 cap screws are available for builds up to 1,500 horsepower.

This rotating assembly is designed for Big Block Chevrolet (BBC) engines. It is not CARB approved and cannot be shipped to California.

⚠️ 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

Manley Performance is well-known for making strong internal engine components, and this BBC rotating assembly is a prime example of their commitment to building parts that can handle serious power. This kit is designed for big block Chevrolet engines and features a 4.000-inch stroke with a 4.530-inch bore, ready to be the heart of a high-performance build.

At the core of this assembly is a 4340 forged steel crankshaft, chosen for its strength and durability under extreme stress. Paired with it are 4340 forged steel H-beam connecting rods. These rods come standard with 7/16? ARP 8740 cap screws, a solid choice for builds up to 900 horsepower. If your build demands even more, you have the 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, known for their resilience. They include premium chrome moly wrist pins, ensuring reliable operation at high RPMs and temperatures.

This rotating assembly is a substantial investment for a serious engine build. It's important to note that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and torque specifications.