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-output engine builds.

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

The cam and barrel profiles on the piston skirts are designed to optimize piston movement within the cylinder. This design helps to generate substantial power while also minimizing wear on the cylinder walls.

Are these pistons legal for use in California?

No, these pistons are not CARB approved and cannot be shipped to California due to emissions regulations.

Specifications

Brand: Manley Performance
Part #: 566265CE-8
UPC: 807298100159

Manley Chevrolet LS Piston Set - 4.065in Bore 1.115in CH, -18.00 CC

Name: Manley Chevrolet LS Piston Set - 4.065in Bore 1.115in CH, -18.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-ls-piston-set-4-065in-bore-1-115in-ch-18-00--t14-880464
Price: 1359.30 USD
Availability: BackOrder

$1359.30

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Manley Chevrolet LS Piston Set - 4.065in Bore 1.115in CH, -18.00 CC. Forged from 2618 alloy for superior strength and performance in high-output LS engines.

Key Features

Fits Chevrolet LS engines with a 4.065-inch bore.
Forged from domestic 2618 alloy for superior strength and performance.
Features a 1.115-inch compression height and an -18.00cc dish.
Includes proven cam and barrel skirt profiles for power generation and cylinder wall protection.
Exacting ring lands and grooves ensure enhanced ring seal and more power.
Tool steel wrist pins are included for added durability.

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 building a high-performance Chevrolet LS engine, this Manley Performance Piston Set is a solid choice for serious power. These pistons are designed for a 4.065-inch bore with a 1.115-inch compression height and feature an -18.00cc dish, making them suitable for various compression ratio targets in performance applications.

Manley uses domestic 2618 alloy forgings, which are known for their strength and ability to handle the stresses of high-output engines. The pistons feature proven cam and barrel skirt profiles, which help generate power while also being gentle on your cylinder walls. They also incorporate exacting standards for ring lands and grooves, ensuring a better seal for your piston rings and ultimately more power. A notable detail is Manley's unique fixturing process that allows skirt turning and ring groove machining in a single operation, which ensures the ring grooves are perfectly square to the skirt. This attention to detail is what professional engine builders rely on.

This set includes tool steel wrist pins for added durability. While these pistons are built for performance, please note they are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.