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Est. 1957
Manley Performance

Manley Rotating Assembly, SBC 434 4.000 STROKE/-20cc DISH

$3551.77

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Manley Performance SBC 434 rotating assembly with a 4.000" stroke. Features forged steel crank and rods, and 2618 aluminum pistons.

Key Features

  • Fits Small Block Chevy (SBC) engines.
  • Features a 4.000 inch stroke.
  • Includes a lightweight 4340 forged steel crankshaft.
  • Comes with 4340 forged steel H-beam connecting rods with 7/16? ARP 8740 cap screws.
  • Includes 2618 forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins.
  • Rated for up to 750 horsepower with standard ARP 8740 cap screws.
This rotating assembly is designed for Small Block Chevy (SBC) engines. Please consult 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

This Manley Performance rotating assembly is built for a Small Block Chevy (SBC) 434 cubic inch engine with a 4.000 inch stroke. It's a well-built package designed for serious performance builds where strength and reliability are key. If you're looking to build a powerful engine for your project, this assembly gives you the core components to get started.

At the heart of this assembly is a lightweight 4340 forged steel crankshaft, chosen for its strength and ability to handle high RPMs. Paired with it 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 can support significantly more horsepower. The pistons are made from 2618 forged aluminum, a material known for its durability and thermal stability under stress. They also include Premium Chrome Moly wrist pins, which are strong and resist wear. This combination is rated for up to 750 horsepower with the standard ARP 8740 bolts, and an impressive 1,500 horsepower when using the optional ARP 2000 cap screws.

This assembly is not CARB approved and cannot be shipped to California. It's a serious component for a serious engine build, providing a strong foundation for high-performance applications.

Specifications

Brand
Manley Performance
Manufacturer Part #
290230RX
UPC
807298068909

Frequently Asked Questions

Manley Rotating Assembly, SBC 434 4.000 STROKE/-20cc DISH

$3551.77