What is a rotating assembly?

A rotating assembly is a set of critical engine components that work together. This kit includes the crankshaft, connecting rods, pistons, piston rings, and main and rod bearings, all designed to be compatible with each other for a balanced and strong engine build.

What kind of performance can I expect from this kit?

This kit uses high-strength forged components like the 4340 steel crankshaft and 2618 aluminum pistons, along with quality ARP rod bolts and Clevite bearings. This combination is built to withstand higher RPMs and increased cylinder pressures compared to stock cast components.

Are there any special considerations for installing this kit?

Proper installation is crucial for any engine build. Always ensure your machine shop has balanced the assembly correctly and follow the manufacturer's detailed installation instructions for bearing clearances, piston ring gap, and torque specifications for all fasteners.

Specifications

Brand: Manley Performance
Part #: 39393X
UPC: 807298114750

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-t14-881423
Price: 5158.91 USD
Availability: BackOrder

$5158.91

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. A well-built rotating assembly for your Ford 351 Cleveland.

Key Features

Fits Ford 351 Cleveland engines with a 3.850" stroke and 4.030" bore.
Includes a 4340 forged steel crankshaft for high 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 with a 3.850-inch crankshaft stroke and a 4.030-inch bore. 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

This Manley Performance rotating assembly is built for Ford 351 Cleveland engines, specifically designed for a 3.850-inch crankshaft stroke and a 4.030-inch bore. If you're rebuilding the heart of your engine, a complete rotating assembly like this takes the guesswork out of matching critical components. It ensures that your crankshaft, connecting rods, pistons, rings, and bearings are all designed to work together for optimal performance and durability.

At the core of this kit is a 4340 forged steel crankshaft, known for its exceptional strength and ability to handle high stress applications. Paired with this are Manley's Pro Series I-Beam connecting rods. These are lightweight yet strong, and they come standard with 7/16-inch ARP 2000 cap screws, a popular choice for their reliability in high-performance builds. The pistons are Manley's Platinum Series, made from 2618 forged aluminum, which offers a good balance of strength and light weight. They include premium chrome moly wrist pins for added durability. To top it off, the kit comes with high-performance piston rings and high-performance Clevite 'H' Series rod bearings (narrowed) and 'P' or 'H' Series main bearings, all selected to complement the forged components and ensure proper oil clearance and longevity.

This assembly is a solid option for those looking to build a powerful and reliable engine. Please note that this kit is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and torque specifications.