What is the horsepower rating for this rotating assembly?

With the standard 7/16? ARP 8740 cap screws, this assembly is rated for up to 750 horsepower. If you opt for the ARP 2000 cap screws, the rating increases to 1,500 horsepower.

What is the purpose of the 11cc dome on the pistons?

The 11cc dome volume on the pistons helps to influence the engine's compression ratio. This specification is important for tuning your engine's performance and is often chosen in conjunction with specific cylinder head volumes.

Specifications

Brand: Manley Performance
Part #: 290960
UPC: 807298112961

Manley Rotating Assembly, SBC 383 3.750 STROKE/+11cc DOME

Name: Manley Rotating Assembly, SBC 383 3.750 STROKE/+11cc DOME
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-sbc-383-3-750-stroke-11cc-dome-t14-881159
Price: 3461.89 USD
Availability: BackOrder

$3461.89

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Rotating Assembly, SBC 383 3.750 STROKE/+11cc DOME. A well-built rotating assembly for serious engine builds.

Key Features

Fits Small Block Chevy (SBC) engines.
Features a 3.750 inch stroke crankshaft made from lightweight 4340 forged steel.
Includes 4340 forged steel H-beam connecting rods with 7/16? ARP 8740 cap screws.
Optional ARP 2000 cap screws are available for increased horsepower support.
Comes with 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 with your engine builder or refer to manufacturer specifications to ensure compatibility with your specific 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

Built from 4340 forged steel, the crankshaft in this Manley rotating assembly is designed for serious performance. This particular assembly is configured for a 383 cubic inch Small Block Chevy (SBC) with a 3.750-inch stroke and pistons featuring an 11cc dome volume, which will influence your compression ratio depending on your cylinder head choice.

Manley pairs this robust crankshaft with 4340 forged steel H-beam connecting rods. These rods come standard with 7/16? ARP 8740 cap screws, a strong choice capable of handling up to 750 horsepower. If your build demands more, you have the option to upgrade to ARP 2000 cap screws, which can support up to 1,500 horsepower. The included 2618 forged aluminum pistons are from Manley's Platinum Series, known for their durability, and they come with premium chrome moly wrist pins.

This assembly is a solid foundation for a high-performance engine build. Keep in mind 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 torque specifications.