What is the advantage of forged pistons over cast pistons?

Forged pistons are made by heating and hammering aluminum into shape, making them significantly stronger and more durable than cast pistons. This makes them ideal for high-performance engines that experience high cylinder pressures and temperatures.

What is the purpose of the cam and barrel skirt profiles?

These profiles are carefully shaped to optimize piston movement within the cylinder. They help manage piston slap, reduce friction, and ensure the piston stays square in the bore, which contributes to both power output and reduced cylinder wall wear.

What does the -20.00cc dish volume mean for my engine?

The dish volume affects your engine's compression ratio. A negative dish volume, like the -20.00cc here, typically lowers the compression ratio. This is often used in forced induction applications (like turbochargers or superchargers) to prevent detonation.

Specifications

Brand: Manley Performance
Part #: 566070CE-8
UPC: 807298100319

Manley Chevrolet LS Piston Set - 4.070in Bore 1.065in CH, -20.00 CC

Name: Manley Chevrolet LS Piston Set - 4.070in Bore 1.065in CH, -20.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-ls-piston-set-4-070in-bore-1-065in-ch-20-00--t14-880460
Price: 1359.30 USD
Availability: BackOrder

$1359.30

On Backorder

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

Manley Chevrolet LS Piston Set - 4.070in Bore 1.065in CH, -20.00 CC. Forged from 2618 alloy for superior strength and performance in high-output LS engines.

Key Features

Fits Chevrolet LS engines with a 4.070 inch bore.
Forged from domestic 2618 alloy for superior strength and performance.
Features proven cam and barrel skirt profiles for power generation and cylinder wall protection.
Precisely machined ring lands and grooves ensure enhanced ring seal for more power.
Includes premium Chrome Moly steel wrist pins.
Dish volume is -20.00cc, affecting compression ratio.

This piston set is designed for Chevrolet LS engines with a 4.070 inch bore. Always confirm compatibility with your specific engine build and consult manufacturer specifications.

⚠️ 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 Chevrolet LS engine, this Manley Performance piston set is designed to handle serious power. These are forged pistons, meaning they start as a solid block of aluminum that's heated and hammered into shape, making them much stronger than cast pistons. This is crucial for engines that see aggressive use, like those in racing or heavily modified street applications.

Manley uses a domestic 2618 alloy for these pistons, which is known for its strength and durability under high stress. They feature proven cam and barrel skirt profiles that help generate power while also being designed to minimize wear on your cylinder walls. The ring lands and grooves are machined to very precise standards, which is key for getting a good seal with your piston rings, ultimately leading to more power and better engine efficiency. The included wrist pins are made from Chrome Moly steel, a strong and reliable material for this critical component.

These pistons are intended for professional engine builders and tuners who demand reliable performance. Because they are a performance part, it's important to note that they are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures, especially regarding ring gap and cylinder wall preparation.