What components are included in this Manley rotating assembly?

This kit includes a 4340 forged steel crankshaft with a 3.750-inch stroke, 4340 forged steel H-beam connecting rods with 7/16-inch ARP 8740 cap screws, and 2618 forged aluminum Platinum Series pistons with premium chrome moly wrist pins.

What is the horsepower rating for this rotating assembly?

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

Is this rotating assembly approved for use in California?

No, this part is not CARB approved and cannot be shipped to California due to emissions regulations.

Specifications

Brand: Manley Performance
Part #: 290040H
UPC: 807298080000

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-t14-881112
Price: 3384.88 USD
Availability: BackOrder

$3384.88

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/-15cc DISH. Includes forged steel crank, H-beam rods, and forged aluminum pistons.

Key Features

This kit includes a lightweight 4340 forged steel crankshaft with a 3.750-inch stroke.
It also contains 4340 forged steel H-beam connecting rods fitted with 7/16-inch ARP 8740 cap screws.
The assembly comes with 2618 forged aluminum Platinum Series pistons and premium chrome moly wrist pins.
This rotating assembly is designed for pistons with a -15cc dish volume.
With the included ARP 8740 cap screws, the assembly is rated for up to 750 horsepower.
Optional ARP 2000 cap screws can be used to support builds up to 1,500 horsepower.

This rotating assembly is designed for Small Block Chevy (SBC) 383 cubic inch engines. Check manufacturer specifications for complete compatibility details.

⚠️ 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 rotating assembly gives you the core components to build a strong 383 cubic inch Small Block Chevy engine. Inside this kit, you'll find a lightweight 4340 forged steel crankshaft with a 3.750-inch stroke, designed to work with pistons that have a -15cc dish volume. Also included are 4340 forged steel H-beam connecting rods, which come equipped with 7/16-inch ARP 8740 cap screws for solid reliability. Topping off the assembly are 2618 forged aluminum Platinum Series pistons, paired with premium chrome moly wrist pins, ready to be installed in your build.

The materials chosen for this assembly are built for performance. The 4340 forged steel crankshaft and connecting rods offer a strong foundation that can handle significant power. The forged aluminum pistons are a popular choice for their strength and ability to withstand high temperatures and pressures. With the standard ARP 8740 cap screws, this assembly is rated for up to 750 horsepower. If you plan on pushing your engine harder, you can opt for ARP 2000 series cap screws, which raise the horsepower ceiling to a robust 1,500 horsepower.

This is a serious rotating assembly for builders looking to create a powerful Small Block Chevy. 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 balancing procedures.