What is included in this rotating assembly kit?

This kit includes a 4340 forged steel crankshaft, 4340 forged steel H-beam connecting rods with ARP 8740 cap screws, 2618 forged aluminum Platinum Series pistons with wrist pins, high-performance piston rings, and Clevite 'H' Series rod bearings and 'P' Series main bearings.

What are the main benefits of using forged components?

Forged components, like the crankshaft and connecting rods in this kit, are made from solid blocks of steel that are heated and hammered into shape. This process creates a stronger, more durable part that can withstand higher stresses and pressures compared to cast components, making them ideal for performance engines.

Specifications

Brand: Manley Performance
Part #: 28415
UPC: 807298085715

Manley Kit - LS 415 4.070in Bore 4.00in Stroke -18cc Dish Pistons 415ci Rotating Assembly

Name: Manley Kit - LS 415 4.070in Bore 4.00in Stroke -18cc Dish Pistons 415ci Rotating Assembly
Brand: Manley Performance
SKU: manley-performance-manley-kit-ls-415-4-070in-bore-4-00in-stroke-18cc-dish-piston-t14-94058
Price: 3969.22 USD
Availability: BackOrder

$3969.22

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Performance is known for well-built engine components. This LS rotating assembly is designed for high-performance builds, offering a complete package for your engine.

Key Features

Verified fitment for Chevy LS 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.
Includes high-performance piston rings.
Features high-performance Clevite 'H' Series rod bearings (narrowed) and 'P' Series main bearings.

This rotating assembly is designed for Chevy LS 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 has a solid reputation for building tough engine components, and this rotating assembly is a prime example of their work. If you're looking to build a serious LS engine, this kit gives you the core pieces to get started. It's designed to handle increased power and stress, making it a popular choice for performance builds where reliability is key.

This assembly includes a lightweight 4340 forged steel crankshaft and strong 4340 forged steel H-beam connecting rods. The rods come with 7/16? ARP 8740 cap screws, with an option for ARP 2000 screws if you need even more clamping force. Forged aluminum pistons are part of the package, specifically their Platinum Series, which are known for being lightweight and durable. These pistons feature premium chrome moly wrist pins and come with high-performance piston rings. To round out the rotating assembly, you get high-performance Clevite 'H' Series rod bearings (narrowed) and 'P' Series main bearings, all chosen to work together for smooth operation and longevity under load.

This kit is intended for performance applications and is not CARB approved, meaning it cannot be shipped to California. It's a comprehensive package that brings together critical rotating components from a trusted name in performance engine parts.