What is the compression ratio impact of the -20.00cc dish?

The -20.00cc dish volume is a key factor in determining your engine's final compression ratio. This dish volume, combined with your cylinder head volume and gasket thickness, will dictate the compression ratio achieved. It's a common choice for builders aiming for specific compression targets in naturally aspirated or forced induction setups.

What are the benefits of 2618 alloy forgings?

2618 alloy forgings are chosen for their superior strength and performance under high stress and temperature conditions. This material is less prone to expansion and deformation compared to cast aluminum, making it ideal for demanding engine builds where reliability is paramount.

Are these pistons compatible with all LS engine blocks?

These pistons are designed for LS engines with a 4.005-inch bore. While they are a popular choice for many LS applications, it's essential to verify that your specific LS engine block has this bore size and that the 1.065-inch compression height is suitable for your intended build configuration.

Specifications

Brand: Manley Performance
Part #: 566005C-8
UPC: 807298100265

Manley Chevrolet LS Piston Set - 4.005in Bore 1.065in CH, -20.00 CC

Name: Manley Chevrolet LS Piston Set - 4.005in Bore 1.065in CH, -20.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-ls-piston-set-4-005in-bore-1-065in-ch-20-00--t14-880455
Price: 1093.44 USD
Availability: BackOrder

$1093.44

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Manley Chevrolet LS Piston Set - 4.005in Bore 1.065in CH, -20.00 CC. Built with 2618 alloy forgings for superior strength and durability in high-performance builds.

Key Features

Fits Chevrolet LS engines with a 4.005-inch bore.
Features a -20.00cc dish volume, suitable for various compression ratio targets.
Constructed from domestic 2618 alloy forgings for superior strength and durability.
Includes proven cam and barrel skirt profiles to reduce friction and cylinder wall wear.
Exacting standards for ring lands and grooves ensure enhanced piston ring seal and power.
Comes standard with premium chrome moly wrist pins.

This piston set is designed for Chevrolet LS engines. 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 rebuilding the heart of your Chevrolet LS engine for serious performance, a strong set of pistons is where it all starts. This Manley Performance piston set is designed for builders who demand reliability and power from their engine builds. They feature a 4.005-inch bore size and a -20.00cc dish, which is a common configuration for naturally aspirated or forced induction builds where specific compression ratios are targeted.

Manley uses domestic 2618 alloy forgings for these pistons, a material known for its exceptional strength and ability to handle high temperatures and pressures without deforming. The pistons also feature proven cam and barrel skirt profiles, which help reduce friction and wear on your cylinder walls while still allowing the piston to move freely. You'll also find exacting standards applied to the ring lands and grooves, which is crucial for achieving a good seal with your piston rings, leading to more efficient combustion and better power output. Each set includes premium chrome moly wrist pins, and Manley's unique fixturing process ensures the ring grooves are perfectly square to the skirt for optimal performance.

This set is a popular choice among professional engine builders and tuners looking for a well-built component that can withstand the demands of performance applications. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.