Exterior Components› Body Panels and Components

SEALED POWER

CAST PISTON

$71.97

SKU: S03T H699DCP 30

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

Beginner — under 30 min

Description

The Sealed Power Speed-Pro H699DCP 30 is a set of six hypereutectic pistons designed for Chevy, GMC, and Oldsmobile 4.3L engines. These pistons feature a dish style with four valve reliefs and a 4.030 in. bore diameter. They are constructed from an aluminum alloy containing 16 percent silicon for enhanced strength and wear resistance.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

Available on iOS & Android

Specifications

BrandSEALED POWER
Part NumberS03T H699DCP 30

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.

View Full Return Policy