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 rating to 1,500 horsepower.

What are the main components included in this kit?

This kit 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.

Can this rotating assembly be shipped to California?

No, this assembly is not CARB approved and cannot be shipped to California due to emissions regulations.

Specifications

Brand: Manley Performance
Part #: 38615
UPC: 807298093376

Manley Rotating Assembly, BBC 615 4.625 STROKE/4.600/-3cc

Name: Manley Rotating Assembly, BBC 615 4.625 STROKE/4.600/-3cc
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-bbc-615-4-625-stroke-4-600-3cc-t14-881209
Price: 3777.80 USD
Availability: BackOrder

$3777.80

On Backorder

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

Manley Rotating Assembly, BBC 615 4.625 STROKE/4.600/-3cc. Includes forged steel crank, H-beam rods, and forged aluminum pistons.

Key Features

This kit includes a 4340 forged steel crankshaft, 4340 forged steel H-beam connecting rods, and 2618 forged aluminum Platinum Series pistons.
The connecting rods are fitted with 7/16? ARP 8740 cap screws, supporting up to 900 horsepower.
Optional ARP 2000 cap screws are available for the connecting rods, increasing the horsepower range to 1,500.
The pistons are forged aluminum and come with premium chrome moly wrist pins.
The crankshaft has a 4.625 inch stroke and is designed for a 4.600 inch bore.
Pistons have a -3cc dish volume.

This is a general rotating assembly for BBC engines and is not specific to a particular vehicle model year. Check manufacturer specifications to confirm compatibility with your specific engine build.

⚠️ 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

This Manley rotating assembly kit gives you the core components for a BBC 615ci engine build. Inside this package, you'll find a 4340 forged steel crankshaft, a set of 4340 forged steel H-beam connecting rods, and 2618 forged aluminum Platinum Series pistons. The connecting rods come equipped with 7/16? ARP 8740 cap screws, with an option to upgrade to ARP 2000 cap screws for even more strength. The pistons also include premium chrome moly wrist pins.

This assembly is built to handle serious power. With the standard ARP 8740 bolts in the connecting rods, this kit is rated for up to 900 horsepower. If you opt for the ARP 2000 cap screws, the horsepower range increases to a robust 1,500 horsepower. The crankshaft features a 4.625 inch stroke and is designed for a 4.600 inch bore with a -3cc piston dish volume, making it a solid foundation for a high-performance big block Chevrolet engine.

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.