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 well-suited for high-performance engine applications.

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

The cam and barrel skirt profiles are designed to manage how the piston moves within the cylinder bore. This design helps to reduce friction and minimize wear on the cylinder walls, contributing to both improved power output and longer engine life.

Are these pistons compatible with all piston rings?

These pistons feature exacting ring lands and grooves, which are critical for achieving a proper seal with your piston rings. While they are designed for optimal ring seal, it's always best to consult your engine build specifications or a professional to ensure compatibility with your chosen piston ring set.

Specifications

Brand: Manley Performance
Part #: 596975CE-8
UPC: 807298101392

Manley Chevrolet LS Piston Set - 4.075in Bore 1.304in CH, -18.00 CC

Name: Manley Chevrolet LS Piston Set - 4.075in Bore 1.304in CH, -18.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-ls-piston-set-4-075in-bore-1-304in-ch-18-00--t14-880578
Price: 1269.53 USD
Availability: BackOrder

$1269.53

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Manley Chevrolet LS Piston Set - 4.075in Bore 1.304in CH, -18.00 CC. Forged from 2618 alloy for superior strength.

Key Features

Fits Chevrolet LS engines with a 4.075 inch bore.
Forged from domestic 2618 alloy for superior strength and performance.
Features proven cam and barrel skirt profiles to reduce friction and wear.
Exacting ring lands and grooves enhance piston ring seal for more power.
Includes tool steel wrist pins for added durability.
Dish volume is -18.00 CC, with a 1.304 inch compression height.

⚠️ 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

Built from domestic 2618 alloy forgings, these Manley pistons are a solid choice for anyone looking to build a high-performance Chevrolet LS engine. The 4.075-inch bore size and -18.00 CC dish volume are specific dimensions that matter when you're aiming for a particular compression ratio and displacement in your build. These pistons are designed to handle the demands of serious engine work, whether you're a professional builder or a dedicated enthusiast.

Manley incorporates proven cam and barrel skirt profiles, which help manage piston movement within the cylinder bore. This design choice is important because it reduces friction and wear on the cylinder walls, contributing to both improved power output and longer engine life. The ring lands and grooves are machined to exacting standards, which is critical for achieving a tight seal with your piston rings. A good ring seal means better compression and less oil blow-by, translating directly into more power and a cleaner-burning engine. They also come standard with tool steel wrist pins, and for select part numbers like this one, you can get upgrades to even more durable alloys.

What sets Manley apart is their unique fixturing process. This allows them to machine the skirt and the ring grooves in a single operation. This ensures the ring grooves are perfectly square to the piston skirt, which is a detail that many builders appreciate for its contribution to overall engine precision and reliability. These pistons are not CARB approved and cannot be shipped to California.