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Est. 1957
Manley Performance

Manley Rotating Assembly, SBC 383 3.750 STROKE/-4cc FLAT

$3522.09

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Manley Rotating Assembly, SBC 383 3.750 STROKE/-4cc FLAT. Built for serious performance builds.

Key Features

  • Fits Small Block Chevy (SBC) engines.
  • Features a 3.750-inch stroke crankshaft.
  • Includes -4cc flat top pistons.
  • Crankshaft is constructed from lightweight 4340 forged steel.
  • Connecting rods are 4340 forged steel H-beam type with 7/16? ARP 8740 cap screws.
  • Optional ARP 2000 cap screws are available for increased horsepower support.
This rotating assembly is designed for Small Block Chevy (SBC) engines. Please consult manufacturer specifications for detailed fitment and compatibility with specific engine blocks and components.

⚠️ 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 high-performance Small Block Chevy engine, a strong rotating assembly is the heart of the operation. This Manley Performance rotating assembly is designed for builds aiming for significant power, specifically a 383 cubic inch displacement with a 3.750-inch stroke and -4cc flat top pistons. It's a well-built foundation that can handle serious abuse and power output.

At its core is a lightweight 4340 forged steel crankshaft, chosen for its strength and ability to withstand high RPMs and significant stress. Paired with this are 4340 forged steel H-beam connecting rods. These rods come standard with 7/16? ARP 8740 cap screws, a solid choice for many performance applications. 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 reliably handle. The pistons are Manley's own Platinum Series, made from 2618 forged aluminum and include premium chrome moly wrist pins, ensuring they can handle the intense pressures and heat generated in a performance engine.

This assembly is rated for up to 750 horsepower with the standard ARP 8740 bolts, but with the optional ARP 2000 cap screws, it's capable of supporting an impressive 1,500 horsepower. It's important to note that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed specifications and installation instructions to ensure proper assembly and performance for your specific build.

Specifications

Brand
Manley Performance
Manufacturer Part #
290130RHX
UPC
807298114965

Frequently Asked Questions

Manley Rotating Assembly, SBC 383 3.750 STROKE/-4cc FLAT

$3522.09