Engines and Components› Pistons and Piston Rings

DSS Racing

DSS Racing SX Series Dish Piston Set 4.040" Bore

$672.70

SKU: 1873-4040

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Overview

The DSS Racing SX Series forged piston set is designed for Chevy LS engine builds, including LS2, LS3, L98, LQ9, LS7, LSA, and LSX stroker configurations. These pistons feature a 4.040 inch bore size with a 1.215" compression height and a 0.927" pin diameter. Constructed from a 4032 alloy, they offer a -15cc dish top, suitable for LS1, LS2, LS3, and LS7 cylinder heads.

Manufactured in the USA, the SX Series pistons are forged for enhanced durability and performance. They are ready for blower, turbo, or NOS applications and include features like broached pin oiling slots, drilled bottom ring land oil groove drain-backs, and CNC machined valve reliefs compatible with moderate to aggressive performance head and cam combinations. The 1.5/1.5/3MM ring grooves are designed for maximum seal and land strength.
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The DSS Racing SX Series forged piston set is designed for Chevy LS engine builds, including LS2, LS3, L98, LQ9, LS7, LSA, and LSX stroker configurations. These pistons feature a 4.040 inch bore size with a 1.215" compression height and a 0.927" pin diameter. Constructed from a 4032 alloy, they offer a -15cc dish top, suitable for LS1, LS2, LS3, and LS7 cylinder heads. Manufactured in the USA, the SX Series pistons are forged for enhanced durability and performance. They are ready for blower, turbo, or NOS applications and include features like broached pin oiling slots, drilled bottom ring land oil groove drain-backs, and CNC machined valve reliefs compatible with moderate to aggressive performance head and cam combinations. The 1.5/1.5/3MM ring grooves are designed for maximum seal and land strength.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandDSS Racing
Part Number1873-4040
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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