Product Description


This item is for four (4) .020 in. over bore Sealed Power hypereutectic flat top pistons for Mercruiser and Volvo-Penta 3.0L (181ci) 140hp 4-cylinder engines. P/N (4) H897CP-020. These are the later model flat top pistons. The early model engines require dish top pistons; which we have on eBay as well.

If you're looking for pistons with an unbeatable combination of performance and value, then Sealed Power hypereutectic pistons are for you. These pistons are manufactured from aluminum alloy that contains 16 percent silicon for greater strength and wear resistance. They're also molded in the latest permanent-mold technology to ensure the precise fit and tight bore clearances that today's top engine builders demand. Hypereutectic pistons are ideal for use in high performance street, bracket, and oval track racing—and will work perfectly with normal ring end gaps.


  • Bore: 4.020 in. (at .020 bore)
  • Stroke: Stock
  • Connecting Rod Length: Stock; rods NOT included
  • Piston Top Style: Flat top with no valve reliefs
  • Compression Height: 1.610 in.
  • Piston Material: Hypereutectic aluminum
  • Wrist Pin Diameter: .927 in.; pins included
  • Wrist Pin Style: Press-fit only
  • Ring Land Sizes: 5/64-5/64-3/16 (oil ring); rings not included
  • Notes: Coated skirts

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