What is included with this piston set?

This set includes eight forged pistons. It also comes standard with tool steel wrist pins. You will need to source your own piston rings and bearings separately.

What is the purpose of the -18.00 CC dish?

The dish in the piston crown is designed to reduce the volume in the combustion chamber. This helps you achieve a specific compression ratio when paired with your cylinder heads and gasket thickness.

Are these pistons suitable for all LS engines?

These pistons are designed for Chevrolet LS engines and feature a 4.165-inch bore. It's important to verify that this bore size and the compression height are correct for your specific LS engine build before purchasing.

Specifications

Brand: Manley Performance
Part #: 566340CE-8
UPC: 807298100234

Manley Chevrolet LS Piston Set - 4.165in Bore 1.115in CH, -18.00 CC

Name: Manley Chevrolet LS Piston Set - 4.165in Bore 1.115in CH, -18.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-ls-piston-set-4-165in-bore-1-115in-ch-18-00--t14-880470
Price: 1359.30 USD
Availability: BackOrder

$1359.30

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Manley Chevrolet LS Piston Set - 4.165in Bore 1.115in CH, -18.00 CC. Forged from 2618 alloy for superior strength and durability.

Key Features

This set includes eight forged pistons for Chevrolet LS engines.
Each piston has a 4.165-inch bore and a 1.115-inch compression height.
Features an -18.00 CC dish for setting engine compression ratio.
Constructed from domestic 2618 alloy forgings for superior strength.
Includes tool steel wrist pins for added durability.
Piston ring lands and grooves are machined to strict standards for enhanced ring seal.

This is a universal piston set for Chevrolet LS engines. Consult manufacturer fitment data and your engine specifications to confirm compatibility with your specific application.

⚠️ 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

This set includes eight forged pistons, each with a 4.165-inch bore and a 1.115-inch compression height. They feature an -18.00 CC dish, which is important for setting your compression ratio. These pistons are built for Chevrolet LS engines, a popular choice for performance builds. Manley uses domestic 2618 alloy forgings, known for their strength and ability to handle high performance demands. This material is a solid choice for engines that will see hard use.

Manley's design includes proven cam and barrel skirt profiles. This means the piston is shaped to work smoothly with the cylinder wall, helping to generate power without excessive wear. They also pay close attention to the ring lands and grooves, machining them to strict standards. This attention to detail ensures a better seal from your piston rings, which directly translates to more power and better engine efficiency. The pistons come standard with tool steel wrist pins, and Manley's unique fixturing allows them to machine the skirt and ring grooves in one setup. This ensures the ring grooves are perfectly square to the piston skirt, which is critical for proper ring seal and performance.

When building a high-performance LS engine, the pistons are a critical component. Manley has a reputation among professional engine builders for producing reliable parts. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. You'll also want to consult your engine builder or a trusted resource for the correct ring set and bearing selection to complete your engine assembly.