What is a rotating assembly?

A rotating assembly includes the key components that spin within your engine's crankcase: the crankshaft, connecting rods, pistons, piston rings, wrist pins, and bearings. These parts work together to convert the up-and-down motion of the pistons into the rotational motion that powers your vehicle.

What are the benefits of forged steel and aluminum components?

Forged steel crankshafts and forged aluminum pistons are significantly stronger and more durable than cast components. This makes them better suited to handle the higher stresses, temperatures, and pressures found in performance or racing engines, leading to improved reliability under demanding conditions.

What is included with this Manley rotating assembly kit?

This kit includes a 4340 forged steel crankshaft, Pro Series I-Beam connecting rods with ARP 2000 cap screws, 2618 forged aluminum Platinum Series pistons with premium chrome moly wrist pins, high-performance piston rings, and Clevite 'H' Series rod bearings and 'P' or 'H' Series main bearings.

Specifications

Brand: Manley Performance
Part #: 39393
UPC: 807298114729

Manley Rotating Assembly, KIT-FORD 351C 3.850/4.030

Name: Manley Rotating Assembly, KIT-FORD 351C 3.850/4.030
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-kit-ford-351c-3-850-4-030-t14-881420
Price: 5141.79 USD
Availability: BackOrder

$5141.79

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, KIT-FORD 351C 3.850/4.030. Built for high-performance Ford 351C engines.

Key Features

Fits Ford 351C engines.
Includes a 4340 forged steel crankshaft for increased strength.
Features Pro Series I-Beam lightweight connecting rods with 7/16? ARP 2000 cap screws.
Comes with 2618 forged aluminum Platinum Series pistons and premium chrome moly wrist pins.
Includes high-performance piston rings.
Equipped with high-performance Clevite 'H' Series rod bearings (narrowed) and 'P' or 'H' Series main bearings.

This rotating assembly is designed for Ford 351 Cleveland engines. It is not CARB approved and cannot be shipped 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

Manley Performance is well-known for making strong internal engine components, and this rotating assembly for the Ford 351 Cleveland is a prime example of their commitment to building parts that can handle serious power. If you're rebuilding or upgrading your 351C engine, this kit gives you the core components needed to build a robust foundation. It's designed to handle increased stress and deliver reliable performance when you push your engine hard.

At the heart of this assembly is a 4340 forged steel crankshaft, which offers a significant strength advantage over cast cranks, making it ideal for performance applications. Paired with this are their Pro Series I-Beam connecting rods. These are lightweight yet strong, and they come standard with 7/16? ARP 2000 cap screws, known for their reliability in high-stress environments. The pistons are Manley's Platinum Series, made from 2618 forged aluminum, a material chosen for its ability to withstand high temperatures and pressures. They come complete with premium chrome moly wrist pins, high-performance piston rings, and high-performance Clevite 'H' Series rod bearings (narrowed) and 'P' or 'H' Series main bearings, all selected to work together for optimal engine function and durability.

This kit is a comprehensive package for anyone looking to build a high-performance Ford 351 Cleveland engine. It's important to note that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures to ensure the longevity of your new engine components.