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Professional Series Forged Piston Set for Chevy Big Block Big Chief 3815 Head, 4.580 in. Bore, 1.270 in. CH, +15.6cc
InfoVehicle Info Needed
WISECOPART NUMBER: 926-K422B8

Professional Series Forged Piston Set for Chevy Big Block Big Chief 3815 Head, 4.580 in. Bore, 1.270 in. CH, +15.6cc

$1,13599
ShippingShips on 11/13/2026
Lowest PriceLowest Price Guarantee

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Forged Piston Set
  • Chevy Big Block Big Chief 3815 Head
  • 4.580 in. Bore
  • 1.270 in. Compression Height
  • +15.6cc Dome
  • 0.990 in. Floating Wrist Pin Included
  • Full Round 2618 Forged Aluminum
  • ArmorGlide Coated Skirt
  • Set of 8

    This Wiseco Professional Series piston set is forged from 2618 aluminum for Chevy Big Block Big Chief 3815 Head engines. Each of the 8 pistons has a 4.580 in. bore and a 1.270 in. compression height with a +15.6cc dome. Professional Series pistons are aimed at heavy to severe duty race builds.

    Wiseco K422B8 Piston Set Features:

    • Made for Chevy Big Block Big Chief 3815 Head engines
    • 4.580 in. bore diameter with a 1.270 in. compression height
    • +15.6cc dome volume
    • Forged from 2618 aluminum alloy with a full round forging design
    • ArmorGlide skirt coating for reduced friction, scuff resistance and quieter operation
    • 0.990 in. 52100 Steel floating wrist pin included
    • Piston rings sold separately
    • Fully machined crown with precision ring grooves and an anti-detonation groove
    • Forced pin oiling feeds the wrist pin bore
    • Set of 8 pistons
    • Part TypePiston
    BrandWISECO
    Package Height4.3
    Package Width10.5
    Package Length28.2
    Weight16.8 PG
    Part CategoryPerformance Parts
    Compression Height1.270 in.
    Piston Head TypeDome
    Wrist Pin StyleFloating
    QuantitySet of 8
    Bore Diameter4.580 in.
    Piston StyleFull Round
    Piston Pin Outside Diameter0.990 in.
    Piston Head Volume (Cc)+15.6cc
    Piston Material2618 Aluminum
    Part FitmentUniversal
    Wrist Pin IncludedYes
    Piston Quantity8
    Piston Pin Material52100 Steel
    Vendor Part NumberK422B8
    Package Qty1
    Package TypeEA
    Some parts are not legal for use in California or other states with similar laws / regulations
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