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Est. 1957
Manley Performance

Manley Rotating Assembly, SBC 434 4.000 STROKE/+4cc DOME

$3533.61

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Manley Performance SBC 434 rotating assembly with 4.000" stroke and +4cc dome pistons. Built for high-horsepower builds.

Key Features

  • Fits Small Block Chevy (SBC) engines.
  • Features a 434 cubic inch displacement with a 4.000-inch stroke.
  • Includes +4cc dome pistons for specific compression ratios.
  • Utilizes a lightweight 4340 forged steel crankshaft for strength.
  • Equipped with 4340 forged steel H-beam connecting rods.
  • Standard connecting rods use 7/16? ARP 8740 cap screws, supporting up to 750 HP.
This rotating assembly is designed for Small Block Chevy (SBC) engines. Specific vehicle fitment depends on the engine swap or build application.

⚠️ 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 Small Block Chevy (SBC) engines aiming for a 434 cubic inch displacement with a 4.000-inch stroke. It features +4cc dome pistons, making it a solid foundation for serious engine builds. This assembly is designed to handle significant power, offering a robust starting point for performance enthusiasts looking to push their engine's limits.

At the core of this assembly is a lightweight 4340 forged steel crankshaft, chosen for its strength and ability to withstand high RPMs and increased stress. Paired with this are 4340 forged steel H-beam connecting rods. These rods come standard with 7/16? ARP 8740 cap screws, known for their reliability. For those building extreme horsepower applications, there's an option to upgrade to ARP 2000 cap screws, which can support up to 1,500 horsepower. The pistons are Manley's 2618 forged aluminum Platinum Series, complete with premium chrome moly wrist pins, ensuring durability and performance under demanding conditions. This combination is engineered to provide a well-built and reliable rotating assembly for performance engine builds.

This assembly is rated for 750 horsepower with the standard ARP 8740 cap screws and can be upgraded to handle up to 1,500 horsepower with optional ARP 2000 cap screws. Please note that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed specifications for complete build requirements and compatibility.

Specifications

Brand
Manley Performance
Manufacturer Part #
290300X
UPC
807298068879

Frequently Asked Questions

Manley Rotating Assembly, SBC 434 4.000 STROKE/+4cc DOME

$3533.61