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 upgrade to ARP 2000 cap screws, the rating increases to 1,500 horsepower.

What is the purpose of the -15cc dish on the pistons?

The -15cc dish on the pistons is a volume specification that affects your engine's final compression ratio. It helps to lower compression when used with certain cylinder heads, which can be beneficial for forced induction applications or specific camshaft profiles.

Does this assembly include everything needed for installation?

This rotating assembly includes the crankshaft, connecting rods, pistons, and wrist pins. It does not typically include bearings, piston rings, or fasteners beyond the connecting rod cap screws. You will need to source these separately based on your specific engine build requirements.

Specifications

Brand: Manley Performance
Part #: 290035RH
UPC: 807298079998

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-t14-881107
Price: 3504.96 USD
Availability: BackOrder

$3504.96

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. Built for serious performance builds up to 1500 HP.

Key Features

Fits SBC engines.
Lightweight 4340 forged steel crankshaft.
4340 Forged steel H-Beam connecting rods with 7/16? ARP 8740 cap screws.
2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins.
Rated for up to 750 horsepower with standard ARP 8740 cap screws.
Can be upgraded to handle up to 1,500 horsepower with optional ARP 2000 cap screws.

This rotating assembly is designed for SBC (Small Block Chevy) engine platforms. Please consult with a professional or refer to manufacturer specifications to ensure 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

If you're building a high-performance small-block Chevy engine and need a solid foundation, this Manley rotating assembly is a popular choice. It's designed to handle serious power, whether you're aiming for a street-strip monster or a dedicated race engine. This assembly centers around a 3.750-inch stroke crankshaft, creating a 383 cubic inch displacement when paired with the correct bore size, offering a good balance of torque and high-RPM capability for many applications.

At the heart of this assembly is a lightweight 4340 forged steel crankshaft, chosen for its strength and ability to withstand the stresses of performance engines. Connecting rods are Manley's own 4340 forged steel H-beams, known for their robust construction. They come standard with 7/16? ARP 8740 cap screws, a strong setup capable of handling up to 750 horsepower. For those pushing the limits, an upgrade to optional ARP 2000 cap screws is available, raising the horsepower ceiling to a stout 1,500 HP.

The pistons are Manley's Platinum Series, made from 2618 forged aluminum. This material is selected for its durability and ability to handle high temperatures and pressures. They feature a -15cc dish, which will affect your final compression ratio depending on your cylinder head volume. Premium chrome moly wrist pins are included for reliable operation. This assembly is a well-built package for anyone serious about building a powerful small-block Chevy.