Exterior Components› Body Panels and Components

SEALED POWER

CAST PISTON

$92.85

SKU: S03T H631CP 20

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Sealed Power Speed-Pro H631CP20 is a set of hypereutectic pistons designed for performance and value. These pistons are manufactured from a high-strength aluminum alloy with 16 percent silicon for enhanced durability and wear resistance. They are produced using advanced permanent-mold technology to ensure precise fit and tight bore clearances.

Each piston features a flat top with two valve reliefs and a +5.00cc head volume. They have a 4.020 in. bore, 3.480 in. stroke, and 5.700 in. rod length, with a stock engine stroke type. The pistons utilize hypereutectic aluminum and are ideal for high-performance street, bracket, and oval track racing applications. Piston rings are not included, but wrist pins are provided.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandSEALED POWER
Part NumberS03T H631CP 20

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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