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Professional Series Forged Piston Set for Chevy Big Block, 4.605 in. Bore, 1.270 in. Compression Height, +45cc Dome
InfoVehicle Info Needed
WISECOPART NUMBER: 926-K481B105

Professional Series Forged Piston Set for Chevy Big Block, 4.605 in. Bore, 1.270 in. Compression Height, +45cc Dome

$1,13799
ShippingShips on 11/13/2026
Lowest PriceLowest Price Guarantee

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Forged Piston Set
  • Chevy Big Block
  • 4.605 in. Bore
  • 1.270 in. Compression Height
  • +45cc Dome
  • 0.990 in. Floating Wrist Pin Included
  • Strutted 2618 Forged Aluminum
  • ArmorGlide Coated Skirt
  • Set of 8

    This Wiseco Professional Series piston set is forged from 2618 aluminum for Chevy Big Block engines. Each of the 8 pistons has a 4.605 in. bore and a 1.270 in. compression height with a +45cc dome. Professional Series pistons are aimed at heavy to severe duty race builds.

    Wiseco K481B105 Piston Set Features:

    • Made for Chevy Big Block engines
    • 4.605 in. bore diameter with a 1.270 in. compression height
    • +45cc dome volume
    • Sized for a 4.250 in. stroke and 6.385/6.800 in. connecting rod length
    • Forged from 2618 aluminum alloy with a strutted 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 Height4.2
    Package Width10.6
    Package Length28.0
    Weight16.8 PG
    Part CategoryPerformance Parts
    Compression Height1.270 in.
    Piston Head TypeDome
    Wrist Pin StyleFloating
    QuantitySet of 8
    Bore Diameter4.605 in.
    Piston StyleStrutted
    Piston Pin Outside Diameter0.990 in.
    Piston Head Volume (Cc)+45cc
    Piston Material2618 Aluminum
    Part FitmentUniversal
    Rod Length6.385/6.800 in.
    Wrist Pin IncludedYes
    Piston Quantity8
    Piston Pin Material52100 Steel
    Vendor Part NumberK481B105
    Package Qty1
    Package TypeEA
    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning