What is the horsepower rating for this rotating assembly?

This Manley rotating assembly is rated for 750 horsepower when used with ARP 8740 fasteners. With the optional ARP 2000 cap screws, it can handle up to 1,500 horsepower.

What materials are used in this rotating assembly?

The crankshaft is made from lightweight 4340 forged steel. The connecting rods are Pro Series Lightweight I-Beam, and the pistons are 2618 forged aluminum from Manley's Platinum Series, all including premium wrist pins.

Is this assembly compatible with all Small Block Chevy engines?

This assembly is specifically for SBC engines and features a 3.480" stroke with -4cc flat-top pistons. It's crucial to verify that these specifications align with your particular engine block and build requirements.

Specifications

Brand: Manley Performance
Part #: 290835X
UPC: 807298115313

Manley Rotating Assembly, SBC 355 3.480 STROKE/-4cc FLAT

Name: Manley Rotating Assembly, SBC 355 3.480 STROKE/-4cc FLAT
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-sbc-355-3-480-stroke-4cc-flat-t14-881304
Price: 4552.03 USD
Availability: BackOrder

$4552.03

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 355 3.480 STROKE/-4cc FLAT. Built for serious performance builds.

Key Features

Fits Small Block Chevy (SBC) engines.
Features a lightweight 4340 forged steel crankshaft.
Includes Pro Series Lightweight I-Beam connecting rods with 7/16? ARP 2000 cap screws.
Comes with 2618 forged aluminum Platinum Series pistons.
Includes Premium Chrome Moly wrist pins.
Rated for 750 horsepower with ARP 8740 fasteners.

This rotating assembly is designed for Small Block Chevy (SBC) engines. Check manufacturer specifications to confirm 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, a strong rotating assembly is the heart of the operation. This Manley Performance rotating assembly is designed for builds aiming for serious power, handling up to 1,500 horsepower with the right hardware. It's a well-built foundation for your next engine project.

At the core of this assembly is a lightweight 4340 forged steel crankshaft, chosen for its strength and ability to handle high RPMs and significant stress. Paired with this are Manley's Pro Series Lightweight I-Beam connecting rods, known for their robust construction and reliability. These rods come equipped with 7/16? ARP 2000 cap screws, a popular choice for their strength in demanding applications. The pistons are 2618 forged aluminum, part of Manley's Platinum Series, and include Premium Chrome Moly wrist pins. This combination of materials and design ensures durability and performance under extreme conditions. This assembly is rated for 750 horsepower with ARP 8740 fasteners, and can be upgraded to handle up to 1,500 horsepower when using optional ARP 2000 cap screws.

This assembly is a solid option for engine builders looking for a complete, high-quality rotating assembly from a well-known brand. 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.