What is the horsepower limit for this rotating assembly?

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

What material are the crankshaft and connecting rods made from?

Both the crankshaft and the connecting rods are forged from 4340 steel. This material is chosen for its high strength and durability, making it suitable for high-performance engine builds.

Does this assembly come with everything needed for installation?

This rotating assembly includes the crankshaft, connecting rods, and pistons with wrist pins. However, it does not include bearings, piston rings, or fasteners beyond the connecting rod cap screws. You will need to source these separately and refer to the manufacturer's instructions for proper assembly.

Specifications

Brand: Manley Performance
Part #: 290035R
UPC: 807298068640

Manley Rotating Assembly, SBC 383 3.750 STROKE/-15cc DISH

Name: Manley Rotating Assembly, SBC 383 3.750 STROKE/-15cc DISH
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-sbc-383-3-750-stroke-15cc-dish-t14-881106
Price: 3420.95 USD
Availability: BackOrder

$3420.95

On Backorder

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Manley Rotating Assembly, SBC 383 3.750 STROKE/-15cc DISH. A well-built rotating assembly for serious engine builds.

Key Features

Fits Small Block Chevy (SBC) engines with a 383 cubic inch displacement and 3.750 inch stroke.
Features -15cc dish pistons from Manley's Platinum Series, made from 2618 forged aluminum.
Includes premium chrome moly wrist pins for enhanced durability.
The crankshaft is forged from 4340 steel for strength and reliability.
Comes with 4340 forged steel H-beam connecting rods.
Standard configuration includes 7/16? ARP 8740 cap screws, supporting up to 750 horsepower.

This rotating assembly is designed for Small Block Chevy (SBC) engines with a 383 cubic inch displacement and a 3.750 inch stroke. It is not CARB approved and cannot ship to California.

⚠️ 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

If you're building a high-performance Small Block Chevy engine, a strong rotating assembly is the heart of your build. This Manley rotating assembly is designed for the 383 cubic inch displacement with a 3.750-inch stroke, featuring pistons with a -15cc dish to help achieve your desired compression ratio. It's a well-built foundation for engines aiming for significant power.

The crankshaft is forged from 4340 steel, known for its strength and durability under high stress. Paired with this are 4340 forged steel H-beam connecting rods. These rods come standard with 7/16? ARP 8740 cap screws, capable of handling up to 750 horsepower. For those pushing the limits, optional ARP 2000 cap screws are available, allowing this assembly to support up to 1,500 horsepower. The pistons are forged from 2618 aluminum, part of Manley's Platinum Series, and include premium chrome moly wrist pins for added strength and reliability.

This assembly is a solid choice for builders looking for a robust rotating assembly from a reputable manufacturer. 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 torque specifications.