What is the purpose of the -8cc dome and 1.115-inch compression height?

The -8cc dome is a dish in the piston top that helps control the compression ratio, especially when used with certain cylinder heads. The 1.115-inch compression height is the distance from the wrist pin center to the piston deck, which is critical for ensuring proper piston-to-valve clearance and camshaft timing.

What does the ArmorGlide skirt coating do?

The ArmorGlide coating on the piston skirts is designed to reduce friction between the piston and cylinder wall. This helps improve efficiency, reduce wear, and also makes the engine run quieter and more resistant to seizing under high loads.

Are these pistons suitable for a street-driven car?

While these are professional racing pistons built for severe duty, they can be used in a street-driven performance application if the engine is properly built and tuned. However, they are not CARB approved and cannot be shipped to California due to emissions regulations.

Wiseco Professional Series LS Piston Set K395X185

Name: Wiseco Chevy LS Series -8cc R/Dome 1.115 CH 4.125in Bore - Set of 8
Brand: Wiseco
SKU: wiseco-wiseco-chevy-ls-series-8cc-r-dome-1-115-ch-4-125in-bore-set-of-8-t14-211819
Price: 960.26 USD
Availability: BackOrder

Wiseco Chevy LS Series -8cc R/Dome 1.115 CH 4.125in Bore - Set of 8

$960.26

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 4.125in Bore - Set of 8 Piston Set

Key Features

Fits a range of Cadillac, Chevrolet, and Pontiac vehicles with LS engines.
Forged in the USA from 2618 aluminum for improved tensile strength.
Features a -8cc dome, 4.125-inch bore, and 1.115-inch compression height.
Includes precision ring grooves, anti-detonation grooves, and additional ring seal features.
ArmorGlide skirt coating reduces friction and seizure resistance for quieter operation.
Fully machined crown and forced pin oiling are included for demanding applications.

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Will this fit your vehicle?

Product Details

If you're building a serious performance LS engine, these forged pistons from Wiseco are a solid choice. They're designed for heavy-duty racing applications, meaning they're built to handle a lot of abuse and deliver consistent power. This set is for an 8-cylinder engine, featuring a 4.125-inch bore and a -8cc dome, which is important for tuning compression ratios in many LS builds. The 1.115-inch compression height is also a key measurement for piston-to-valve clearance and overall engine geometry.

Wiseco makes these pistons in the USA from 2618 aluminum, a material known for its strength, which is crucial when you're pushing an engine hard. They've also added some smart features like precision ring grooves, anti-detonation grooves, and extra sealing features to help keep everything running smoothly and prevent issues under high stress. The ArmorGlide skirt coating is a nice touch; it helps reduce friction and wear, and it's also designed to resist seizing and run quieter. The fully machined crown and forced pin oiling further show that these are built for demanding performance.

This set is designed to fit a range of popular LS-powered vehicles, including models like the Cadillac CTS, Chevrolet Camaro, and Pontiac GTO. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For a high-performance build, you'll want to ensure you have all the necessary supporting components and follow proper installation procedures, which typically involve precise machining and assembly by a qualified engine builder.