Cast Piston Set for 4.000 in. Bore V8 Engines [Hypereutectic, DUROSHIELD Coated]
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SEALED POWERPART NUMBER: 844-H618CP

Cast Piston Set for 4.000 in. Bore V8 Engines [Hypereutectic, DUROSHIELD Coated]

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Small Block Chevy
Cast Piston Set
  • 4.000 in. Bore, Standard Size V8 Engines
  • Hypereutectic Aluminum with DUROSHIELD Skirt Coating
  • 1.560 in. Compression Height
  • 0.927 in. Pin Diameter

    This cast piston set fits 4.000 in. bore V8 engines during a performance build, using an FM-425 hypereutectic alloy with DUROSHIELD skirt coating that improves oil control and scuff resistance.

    Speed Pro H618CP Specifications:

    • 4.000 in. Bore, Standard Size
    • Hypereutectic Aluminum Construction
    • 1.560 in. Compression Height
    • 0.927 in. Pin Diameter
    • 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 Height4.3
    Package Width9.7
    Package Length18.3
    Weight14.4 PG
    Part CategoryReplacement Parts
    Compression Height1.560 in.
    OversizedNo
    QuantitySet of 8
    Oil Ring Thickness0.1875 in.
    Bore Diameter4.000 in.
    Assembly Lubricant IncludedNo
    Second Compression Ring Thickness0.0781 in.
    Top Compression Ring Thickness0.0781 in.
    Piston MaterialHypereutectic
    Pin Diameter0.927 in.
    Part FitmentSemi Universal
    Grade TypePerformance
    Vendor Part NumberH618CP
    Package Qty1
    Package TypeEA
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