What is the purpose of the -20.00cc dish volume?

The -20.00cc dish volume is a critical specification for determining your engine's compression ratio. It helps reduce the volume in the combustion chamber, which in turn affects how much the air-fuel mixture is compressed. This allows for precise tuning of the compression ratio for your specific build goals.

What are the benefits of the cam and barrel skirt profiles?

These specific skirt profiles are designed to minimize friction and wear against the cylinder walls during operation. This helps to ensure a longer lifespan for both the pistons and the cylinder bores, while still allowing the piston to generate substantial power.

What is included with this piston set?

This set includes the pistons and tool steel wrist pins. Some part numbers may also feature a moly skirt coating. It is recommended to consult the manufacturer's full specifications for exact contents and available upgrades.

Specifications

Brand: Manley Performance
Part #: 566440C-8
UPC: 807298100364

Manley Chevrolet LS Piston Set - 4.165in Bore 1.065in CH, -20.00 CC

Name: Manley Chevrolet LS Piston Set - 4.165in Bore 1.065in CH, -20.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-ls-piston-set-4-165in-bore-1-065in-ch-20-00--t14-880478
Price: 1093.44 USD
Availability: BackOrder

$1093.44

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Manley Chevrolet LS Piston Set - 4.165in Bore 1.065in CH, -20.00 CC. Forged from 2618 alloy for superior strength and performance in demanding builds.

Key Features

Fits Chevrolet LS engines with a 4.165-inch bore.
Forged from domestic 2618 alloy for superior strength and performance.
Features a -20.00cc dish volume for precise compression ratio tuning.
Includes tool steel wrist pins for enhanced durability.
Engineered with cam and barrel skirt profiles to reduce cylinder wall wear.
Exacting ring lands and grooves ensure improved ring seal and power.

This piston set is designed for Chevrolet LS engines. Please verify compatibility with your specific engine build and configuration.

⚠️ 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

These Manley Performance pistons start with domestic 2618 alloy forgings, a material chosen for its exceptional strength and ability to handle high performance demands. They are specifically designed for Chevrolet LS engines and feature a 4.165-inch bore size with a 1.065-inch compression height and a -20.00cc dish volume. This dish volume is a key factor in setting your compression ratio, making these pistons suitable for builds where precise tuning is essential.

Manley's signature cam and barrel skirt profiles are engineered to reduce friction and wear on your cylinder walls while still generating significant power. The ring lands and grooves are machined to exacting standards, which is crucial for achieving a solid ring seal and maximizing the power output from your engine. Each set includes tool steel wrist pins, known for their durability, and many part numbers also come with a moly skirt coating to further reduce friction and improve piston life. The unique fixturing Manley uses allows them to machine the skirt and ring grooves in a single operation, ensuring perfect squareness between these critical areas.

If you're building a high-performance LS engine, whether for racing, track days, or serious street use, these pistons are a solid choice. They are built to withstand the rigors of demanding engine operation. Please note that this part is not CARB approved and cannot be shipped to California.