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Hypereutectic Pistons Chevy 454ci 7.4L V8 +030
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SEALED POWERPART NUMBER: 844-H625CP30

Hypereutectic Pistons Chevy 454ci 7.4L V8 +030

$99017
ShippingShips on 09/25/2026
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Big Block Chevy
Hypereutectic Pistons
  • Big Block Chevy 454ci 7.4L V8 1970-2000
  • 4.280" Bore (+.030)
  • Flat Top w/2 Valve Reliefs
  • Set of 8

    Technical Specs:

    • Material: Hypereutectic
    • Bore: 4.280' (108.459mm)
    • Piston Top: -2.0cc Flat Top w/2 Valve Reliefs
    • Compression Height: 1.640"
    • Rod Length: 6.135
    • Stroke: 4.000"
    • Compression Ring Groove: 5/64"
    • Second Ring Groove: 5/64"
    • Oil Ring Groove Width: 3/16"
    • Full Length: N/A
    • Pin Size: 0.990" O.D. (25.146mm)
    • Pin Type: Press-Fit or Floating
    • Skirt Type: DUROSHIELD Coated
    • Piston Skirt Clearance: 0.0015"
    • Notes: Piston Rings Not Included.
    • Add Strength and Power to Your Pistons

      Sealed Power Hypereutectic Pistons are built to exacting tolerances and feature an aluminum casting with an anti-friction skirt coating that is highly resistant to scuffing and wear. The Duroshield skirt helps improve fuel economy, doesn't require any additional clearance, extends piston life, and increases horsepower with less friction. These durable pistons operate with tight bore clearances and work perfectly with normal-range ring end gaps, making them great for street, bracket racing, and oval track applications.

    Part TypePiston
    Product LineSealed Power Hypereutectic Pistons
    BrandSEALED POWER
    Package Height5.0
    Package Width10.2
    Package Length20.3
    Weight16.55 PG
    Part CategoryPerformance Parts
    QuantitySet of 8
    Vendor Part NumberH625CP30
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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