What is the significance of the 2618 alloy forging material?

The 2618 alloy is chosen for its exceptional strength and ability to withstand high temperatures and pressures common in performance engines. This makes it a reliable choice for demanding LS engine builds.

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

These specific skirt profiles are designed to optimize the piston's movement within the cylinder. They help reduce friction and wear on the cylinder walls while still allowing the piston to generate substantial power.

Are these pistons compatible with all LS engine builds?

These pistons are designed for Chevrolet LS engines with a 4.005 inch bore and a -20.00cc dish volume. Compatibility depends on your specific engine's requirements for bore size, compression ratio, and wrist pin diameter. Always consult your engine builder or manufacturer specifications.

Specifications

Brand: Manley Performance
Part #: 566005CE-8
UPC: 807298100272

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--t14-880456
Price: 1359.30 USD
Availability: BackOrder

$1359.30

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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 performance.

Key Features

Fits Chevrolet LS engines with a 4.005 inch bore.
Features a -20.00cc dish volume for tuning compression.
Constructed from domestic 2618 alloy forgings for superior strength.
Includes premium chrome moly wrist pins for durability.
Piston ring lands and grooves are machined to exacting standards for enhanced ring seal.
Utilizes cam and barrel skirt profiles that balance power generation with cylinder wall protection.

This piston set is designed for Chevrolet LS engines. Please verify 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

Starting with the 2618 alloy forgings, Manley builds these pistons for serious performance applications. This material is known for its strength and ability to handle the high stresses found in powerful LS engines. The pistons feature a -20.00cc dish volume, which is a key specification for tuning compression ratios in your build. They're designed with proven cam and barrel skirt profiles, which help them run smoothly against the cylinder walls while still making good power. You'll also find exacting standards for the ring lands and grooves, which is crucial for getting a solid seal from your piston rings and maximizing engine output.

Manley doesn't cut corners on the supporting components either. These pistons come standard with chrome moly wrist pins, offering good durability for many builds. For those pushing the limits, Manley offers upgrades to even stronger wrist pin alloys. A notable detail in their manufacturing process is the unique fixturing that allows for skirt turning and ring groove machining in the same operation. This ensures the ring grooves are perfectly square to the piston skirt, which is essential for optimal ring seal and preventing blow-by. Professional engine builders and tuners often turn to Manley because of this attention to detail and the reliable performance these pistons deliver.

When you're building a high-performance LS engine, the pistons are a critical component. This set from Manley is designed to meet the demands of serious engine work. Keep in mind that these are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.