What is the purpose of the -8cc dome volume?

The -8cc dome volume is a specific design feature that helps control the engine's compression ratio. This is important for builders who are targeting a particular compression level, especially when using specific cylinder heads, to achieve desired performance characteristics.

What is the ArmorGlide skirt coating for?

The ArmorGlide skirt coating is applied to reduce friction between the piston skirt and the cylinder wall. This helps to lower operating temperatures, decrease noise, and make the piston more resistant to seizing under high-stress conditions.

Are these pistons suitable for a street car?

These are Professional Series forged racing pistons designed for heavy to severe duty race builds. While they can be used in a high-performance street application, they are engineered for extreme conditions and may require specific supporting modifications and tuning for optimal operation and longevity.

Wiseco Chevy LS Piston Set K394X1 - Forged Aluminum

Name: Wiseco Chevy LS Series -8cc R/Dome 1.115 CH - Set of 8
Brand: Wiseco
SKU: wiseco-wiseco-chevy-ls-series-8cc-r-dome-1-115-ch-set-of-8-t14-115106
Price: 1110.89 USD
Availability: BackOrder

Wiseco Chevy LS Series -8cc R/Dome 1.115 CH - Set of 8

$1110.89

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Wiseco Chevy LS Series -8cc R/Dome 1.115 CH - Set of 8. Forged 2618 aluminum pistons built for severe duty LS engine builds.

Key Features

Fits: Chevrolet LS engines with a 4.010 inch bore.
Forged from 2618 aluminum in the USA for improved tensile strength.
Features a -8cc dome volume and 1.115 inch compression height for precise engine building.
Includes an ArmorGlide skirt coating for reduced friction and seizure resistance.
Designed with precision ring grooves and anti-detonation features for improved ring seal.
Fully machined crown and forced pin oiling enhance durability and performance.

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Product Details

Forged from 2618 aluminum right here in the USA, these Wiseco pistons are built for serious LS engine work. The -8cc dome volume is a specific design choice that helps control compression ratios, especially when paired with certain cylinder heads, making them a solid option for builders aiming for a particular performance target. They're designed for 4.010 inch bore LS engines and feature a 1.115 inch compression height, which is crucial for getting your valve timing and piston-to-deck clearance just right.

Wiseco didn't skimp on the details here. You'll find precision ring grooves, anti-detonation grooves, and other features aimed at improving ring seal and overall combustion efficiency. They also come with an ArmorGlide skirt coating, which Wiseco uses to reduce friction and noise, while also making the pistons more resistant to seizing. The fully machined crown and forced pin oiling are further touches that show these are built to handle the stress of heavy or severe duty performance applications. This set includes eight pistons, ready for your next LS build.

When you're putting together an engine that needs to perform under pressure, parts like these are essential. They're designed to be a robust foundation for builds that go beyond daily driving. Keep in mind these are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures.