Engines and Components› Pistons and Piston Rings

SEALED POWER

CAST PISTON - INDIVIDUAL

$53.72

SKU: S03T WH423DCP 60

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Description

The Sealed Power WH423DCP 60 is a hypereutectic aluminum piston designed for high performance street, bracket, and oval track racing. It features a dish style with four valve reliefs and a bore size of 4.060 inches.

This piston is manufactured from an aluminum alloy containing 16 percent silicon, providing increased strength and wear resistance. It is molded using permanent-mold technology for precise fit and tight bore clearances.

Key specifications include a 3.480-inch stroke, 5.700-inch rod length, and a 1.548-inch compression height. The piston head volume is +12.30cc, and it utilizes a press-fit or floating wrist pin style with a 0.927-inch pin diameter. The piston ring thickness is 5/64 in. x 5/64 in. x 3/16 in.

Fitment

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Specifications

BrandSEALED POWER
Part NumberS03T WH423DCP 60

Buy with Confidence

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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