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Est. 1957
Manley Performance

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

$3318.00

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

Key Features

  • Fits Small Block Chevy (SBC) engines.
  • Features a 3.750-inch stroke crankshaft.
  • Includes flat-top pistons with a -4cc dish.
  • Crankshaft is forged from lightweight 4340 steel.
  • Connecting rods are 4340 forged steel H-beams with 7/16" ARP 8740 cap screws.
  • Pistons are 2618 forged aluminum Platinum Series with premium chrome moly wrist pins.
This rotating assembly is designed for Small Block Chevy (SBC) engines with a 3.750-inch stroke. Check manufacturer specifications for compatibility with specific engine blocks and configurations.

⚠️ 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 your build. This Manley Performance rotating assembly is designed for the 383 cubic inch displacement with a 3.750-inch stroke, featuring flat-top pistons with a -4cc dish. It's a well-built foundation for engines aiming for significant horsepower gains.

The crankshaft in this assembly is forged from 4340 steel, offering a solid base for the stresses of a performance engine. Paired with it are 4340 forged steel H-beam connecting rods, known for their strength and reliability. These rods come equipped with 7/16-inch ARP 8740 cap screws, a popular choice for durability. For even more extreme applications, optional ARP 2000 cap screws are available, allowing this assembly to handle up to 1,500 horsepower. The pistons are Manley's Platinum Series, made from 2618 forged aluminum and include premium chrome moly wrist pins, ensuring they can withstand the demands of high compression and combustion pressures.

This assembly is rated for 750 horsepower with the standard ARP 8740 cap screws and can be pushed to 1,500 horsepower with the optional ARP 2000 cap screws. Please note that this assembly is not CARB approved and cannot be shipped to California. It's a serious component for serious engine builds.

Specifications

Brand
Manley Performance
Manufacturer Part #
290140X
UPC
807298114903

Frequently Asked Questions

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

$3318.00