What material are these pistons made from?

These Manley pistons are forged from domestic 2618 alloy. This material is chosen for its superior strength and performance characteristics, making it suitable for high-demand engine builds.

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

The cam and barrel (skirt) profiles are designed to help the piston move smoothly within the cylinder bore. This design helps generate substantial power while also being gentler on the cylinder walls, contributing to longer engine life.

Are these pistons compatible with all LS engines?

These pistons are specifically designed for LS engines with a 4.125 inch bore and a -20.00 CC dish. It's important to verify these specifications against your specific engine build to ensure proper fitment and performance.

Specifications

Brand: Manley Performance
Part #: 599100C-8
UPC: 807298083100

Manley Chevrolet LS Piston Set - 4.125in Bore 1.315in CH, -20.00 CC

Name: Manley Chevrolet LS Piston Set - 4.125in Bore 1.315in CH, -20.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-ls-piston-set-4-125in-bore-1-315in-ch-20-00--t14-880589
Price: 1004.51 USD
Availability: BackOrder

$1004.51

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Manley Chevrolet LS Piston Set - 4.125in Bore 1.315in CH, -20.00 CC. Forged from 2618 alloy for superior strength and performance.

Key Features

Fits Chevrolet LS engines with a 4.125 inch bore.
Features a -20.00 CC dish volume.
Constructed from domestic 2618 alloy forgings for superior strength.
Utilizes proven cam and barrel skirt profiles for smooth operation and cylinder wall protection.
Ring lands and grooves are machined to exacting standards for enhanced ring seal.
Includes tool steel wrist pins for added durability.

These pistons are designed for Chevrolet LS engines with a 4.125 inch bore. Please consult manufacturer specifications for compatibility with specific engine configurations.

⚠️ 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 is well-known for making strong engine components that professional builders trust. This set of pistons is a prime example, built for Chevrolet LS engines and designed to handle serious performance demands. They feature a 4.125-inch bore and a -20.00 CC dish, which is a common configuration for many high-performance LS builds. If you're looking to rebuild or significantly upgrade your LS engine, these pistons are a solid foundation.

These aren't just any pistons; they start with domestic 2618 alloy forgings, which are chosen for their exceptional strength and ability to perform under high stress. Manley also uses proven cam and barrel skirt profiles. This design helps the piston move smoothly in the cylinder, generating power while also being easier on your cylinder walls compared to simpler designs. The ring lands and grooves are machined to very strict standards, which is crucial for getting a good seal with your piston rings, leading to better compression and more power. They also come with tool steel wrist pins for added durability.

What sets these pistons apart is Manley's unique fixturing process. It allows them to machine the skirt and the ring grooves in one operation. This ensures that the ring grooves are perfectly square to the piston skirt, which is a detail that contributes to a better ring seal and overall engine performance. While these pistons are built for performance, remember they are not CARB approved and cannot be shipped to California. For a robust LS engine build, these Manley pistons offer a well-built and reliable option.