Auto Barn
Est. 1957
Manley Performance

Manley Rotating Assembly, BBC 615 4.625 STROKE/4.600/+43cc

$4167.36

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Manley Rotating Assembly, BBC 615 4.625 STROKE/4.600/+43cc Rotating Assembly

Key Features

  • Fits Big Block Chevrolet (BBC) engines.
  • Features a 4.625-inch stroke 4340 forged steel crankshaft.
  • Includes 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 up to 900 horsepower with ARP 8740 cap screws.
  • Can handle up to 1,500 horsepower with optional ARP 2000 connecting rod cap screws.
This rotating assembly is designed for Big Block Chevrolet (BBC) 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

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About this part

Product Details

If you're building a serious BBC (Big Block Chevrolet) engine, this Manley Performance rotating assembly is a solid foundation. It's designed for high-performance applications where strength and reliability are paramount. This kit includes a 4.625-inch stroke 4340 forged steel crankshaft, 4340 forged steel H-beam connecting rods, and 2618 forged aluminum pistons. The crankshaft's robust construction is built to handle the stresses of powerful engines, while the H-beam rods offer a strong and stable connection between the crank and pistons.

The included pistons are Manley's Platinum Series, made from 2618 forged aluminum for excellent strength-to-weight ratio, and they come with premium chrome moly wrist pins. This assembly is rated for up to 900 horsepower when using the standard 7/16? ARP 8740 cap screws on the connecting rods. If your build demands even more power, you can opt for ARP 2000 cap screws, which will allow this assembly to handle up to 1,500 horsepower. This level of capability means you can push your BBC engine hard, whether for drag racing, serious street performance, or other demanding applications.

When considering this rotating assembly, remember that it is not CARB approved and cannot be shipped to California. It's crucial to ensure this component meets your local emissions regulations. This kit represents a significant investment in your engine build, providing the core components needed for a high-output, durable powerplant.

Specifications

Brand
Manley Performance
Manufacturer Part #
39615RX
UPC
807298093352

Frequently Asked Questions

Manley Rotating Assembly, BBC 615 4.625 STROKE/4.600/+43cc

$4167.36