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Est. 1957
Manley Performance

Manley Rotating Assembly, SBC 355 3.480 STROKE/-4cc FLAT

$3276.84

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Manley Rotating Assembly, SBC 355 3.480 STROKE/-4cc FLAT. Built for high-horsepower builds.

Key Features

  • Fits Small Block Chevy (SBC) engines.
  • Features a 3.480-inch stroke for a 355 cubic inch displacement.
  • Includes a lightweight 4340 forged steel crankshaft.
  • Comes with 4340 forged steel H-beam connecting rods.
  • Connecting rods are equipped with 7/16? ARP 8740 cap screws, with an option for ARP 2000.
  • Includes 2618 forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins.
This rotating assembly is designed for Small Block Chevy (SBC) engines. Please consult with a professional or refer to 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

Manley Performance is well-known for making strong internal engine components, and this rotating assembly is a prime example of their work for Small Block Chevy engines. This kit is designed to give you a solid foundation for a 355 cubic inch engine build with a 3.480-inch stroke. It includes a lightweight 4340 forged steel crankshaft, 4340 forged steel H-beam connecting rods, and 2618 forged aluminum pistons, all selected for their strength and ability to handle serious power.

The crankshaft is forged from 4340 steel, which is a strong material chosen for its durability under high stress. The H-beam connecting rods are also made from 4340 forged steel and come equipped with 7/16? ARP 8740 cap screws. If you're planning a build that pushes the limits, you can opt for ARP 2000 cap screws for even greater strength. The Platinum Series pistons are forged from 2618 aluminum, a material known for its thermal expansion properties, and they come with Premium Chrome Moly wrist pins. This combination is built to handle horsepower ranging from 750 with the standard ARP 8740 bolts up to 1,500 horsepower when using the optional ARP 2000 cap screws.

This assembly is a serious upgrade for anyone looking to build a high-performance Small Block Chevy. Please 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 balancing procedures.

Specifications

Brand
Manley Performance
Manufacturer Part #
290735X
UPC
807298115191

Frequently Asked Questions

Manley Rotating Assembly, SBC 355 3.480 STROKE/-4cc FLAT

$3276.84