Engines and Components› Pistons and Piston Rings

Summit

Forged Piston Set, 4.070in Bore, 21cc Dish

$799.99

SKU: SUM-110927407021

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Ships by Aug 4
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Description

The Summit Racing SUM-110927407021 is a set of Pro LS forged pistons engineered for high-performance engine builds. Constructed from a premium 2618 alloy, these pistons are built to withstand demanding conditions. Each piston features a 4.070-inch bore and is designed for a 4.000-inch stroke, with a compression height of 1.110 inches. The piston head has a 21cc dish volume, making it suitable for NA, boosted, or nitrous applications. They are sold as a set of 8 and are made in the USA. Note that piston rings are not included with this set.

MIA's Description

The Summit Racing SUM-110927407021 is a set of forged pistons for engine builds. These pistons feature a 4.070-inch bore and a 4.000-inch stroke. They are constructed from a 2618 alloy and are sold as a set of 8.

The pistons have a compression height of 1.110 inches and a 21cc dish piston head volume.

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Specifications

BrandSummit
Part NumberSUM-110927407021
CategoryEngines and Components

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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