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Sealed Power Hypereutectic Pistons Chevy 454ci 7.4L Big Block +030

844-H693CP30


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Hypereutectic Pistons Chevy 454ci 7.4L Big Block +030
$271.99
More than 10 available
Hypereutectic Pistons
  • Chevy 454ci 7.4L Big Block
  • 4.280" Bore (+.030")
  • +22.0cc Dome Top w/2 Valve Reliefs
  • Set of 8
  • Free Shipping - Ships
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    What is the compression ratio on 781 heads

    Asked by: Chevy guy
    The Sealed Power 844-H693CP30 would be approximately 9.5:1 with 781 cylinder heads.
    Answered by: jshook
    Date published: 2025-05-30

    WILL THESE FIT IN GEN 5 454?

    Asked by: MFER
    No, these are for the earlier model Mark IV big block engines. You need a piston like this Part Number: 844-H727CP30
    Answered by: Rusty B
    Date published: 2024-03-29
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