What is the purpose of the cam and barrel skirt profiles on these pistons?

These specific skirt profiles are designed to minimize friction and wear on your cylinder walls. They allow the piston to move smoothly while still contributing to the overall power output of the engine.

What does the -20.00cc dish volume signify?

The dish volume is a key factor in determining your engine's compression ratio. A -20.00cc dish means material has been removed from the piston crown, which typically lowers the compression ratio, often used in forced induction applications or to achieve a specific target ratio.

Are these pistons suitable for all LS engine builds?

These pistons are specifically designed for Chevrolet LS engines with a 4.065-inch bore and a 1.065-inch compression height. They are a popular choice for high-performance builds, but it's crucial to confirm these dimensions match your engine's requirements and intended build strategy.

Specifications

Brand: Manley Performance
Part #: 566065CE-8
UPC: 807298100296

Manley Chevrolet LS Piston Set - 4.065in Bore 1.065in CH, -20.00 CC

Name: Manley Chevrolet LS Piston Set - 4.065in Bore 1.065in CH, -20.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-ls-piston-set-4-065in-bore-1-065in-ch-20-00--t14-880458
Price: 1359.30 USD
Availability: BackOrder

$1359.30

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Manley Chevrolet LS Piston Set - 4.065in Bore 1.065in CH, -20.00 CC. Forged from 2618 alloy for superior strength and performance.

Key Features

Fits Chevrolet LS engines with a 4.065-inch bore.
Forged from domestic 2618 alloy for superior strength and performance.
Features a -20.00cc dish volume and 1.065-inch compression height.
Includes tool steel wrist pins for added durability.
Cam and barrel skirt profiles are designed for reduced friction and cylinder wall wear.
Exacting standards for ring lands and grooves ensure enhanced ring seal and power.

This piston set is designed for Chevrolet LS engines. Please verify bore size and other specifications to ensure compatibility with your specific engine build.

⚠️ 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 designed for serious performance builds in Chevrolet LS engines. The 4.065-inch bore size and -20.00cc dish volume are specific choices for certain engine configurations, often used when aiming for a particular compression ratio. The 1.065-inch compression height is also a critical measurement that works in conjunction with your connecting rod length and crankshaft stroke to achieve your desired piston deck height.

Manley's signature cam and barrel skirt profiles are engineered to reduce friction and wear on your cylinder walls while still allowing the piston to generate substantial power. They've also paid close attention to the ring lands and grooves, holding them to strict standards to ensure an enhanced ring seal, which directly translates to more power. These pistons come standard with tool steel wrist pins, and Manley's unique fixturing process ensures the ring grooves are perfectly square to the skirt, a detail that matters for long-term reliability and performance.

If you're building a high-performance LS engine, whether for the street or the track, Manley pistons are a well-known choice among professional engine builders for their strength and durability. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and torque specifications.