Auto Barn
Est. 1957
Manley Performance

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

$3343.73

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Manley Rotating Assembly, SBC 355 3.480 STROKE/-4cc FLAT. Includes forged steel crankshaft, H-beam rods, and forged aluminum pistons.

Key Features

  • This product is a Manley Rotating Assembly for SBC 355 engines with a 3.480-inch stroke and -4cc flat top pistons.
  • Includes a lightweight 4340 forged steel crankshaft.
  • Features 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.
  • The assembly is rated for up to 750 horsepower with ARP 8740 cap screws.
  • Can support up to 1,500 horsepower with optional ARP 2000 cap screws.
This rotating assembly is designed for Small Block Chevy (SBC) 355 cubic inch engines with a 3.480-inch stroke and -4cc flat top pistons. Compatibility with other engine configurations should be verified with the manufacturer.

⚠️ 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

When you're building a serious Small Block Chevy engine, starting with a well-matched rotating assembly is key. This Manley Performance rotating assembly gives you a solid foundation for a 355 cubic inch engine 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 designed for a -4cc flat top combustion chamber. This combination is built to handle significant power, capable of supporting up to 750 horsepower with the standard ARP 8740 cap screws, or an impressive 1,500 horsepower when you opt for the ARP 2000 series cap screws.

The 4340 forged steel crankshaft is a strong, reliable piece that can withstand the stresses of high-RPM operation. Paired with the H-beam connecting rods, also made from 4340 forged steel, you get a robust assembly that’s ready for performance builds. The pistons are forged from 2618 aluminum, known for its strength and ability to handle high temperatures, and they come with premium chrome moly wrist pins for added durability. This assembly is designed for builders who want a high-performance rotating assembly that’s ready to go, saving you the time and effort of sourcing individual components.

Please note that this assembly is not CARB approved and cannot be shipped to California. It's crucial to ensure all components are properly balanced and installed according to manufacturer specifications for optimal performance and longevity.

Specifications

Brand
Manley Performance
Manufacturer Part #
290735H
UPC
807298080185

Frequently Asked Questions

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

$3343.73