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Professional Series Forged Piston Set for Chevy Big Block 396, 427, 454, 502, 4.280 in. Bore, 1.760 in. CH, +34cc
InfoVehicle Info Needed
WISECOPART NUMBER: 926-K0239A3

Professional Series Forged Piston Set for Chevy Big Block 396, 427, 454, 502, 4.280 in. Bore, 1.760 in. CH, +34cc

$1,15099
ShippingShips on 11/13/2026
Lowest PriceLowest Price Guarantee

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Forged Piston Set
  • Chevy Big Block 396, 427, 454, 502
  • 4.280 in. Bore
  • 1.760 in. Compression Height
  • +34cc Dome
  • 0.990 in. Floating Wrist Pin Included
  • Slab Side 2618 Forged Aluminum
  • ArmorGlide Coated Skirt
  • Set of 8

    This Wiseco Professional Series piston set is forged from 2618 aluminum for Chevy Big Block 396, 427, 454, 502 engines. Each of the 8 pistons has a 4.280 in. bore and a 1.760 in. compression height with a +34cc dome. Professional Series pistons are aimed at heavy to severe duty race builds.

    Wiseco K0239A3 Piston Set Features:

    • Made for Chevy Big Block 396, 427, 454, 502 engines
    • 4.280 in. bore diameter with a 1.760 in. compression height
    • +34cc dome volume
    • Sized for a 3.766 in. stroke and 6.135 in. connecting rod length
    • Forged from 2618 aluminum alloy with a slab side forging design
    • ArmorGlide skirt coating for reduced friction, scuff resistance and quieter operation
    • 0.990 in. 5115 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 Height1.760 in.
    Piston Head TypeDome
    Wrist Pin StyleFloating
    QuantitySet of 8
    Bore Diameter4.280 in.
    Piston StyleSlab Side
    Piston Pin Outside Diameter0.990 in.
    Piston Head Volume (Cc)+34cc
    Piston Material2618 Aluminum
    Part FitmentUniversal
    Rod Length6.135 in.
    Wrist Pin IncludedYes
    Piston Quantity8
    Piston Pin Material5115 Steel
    Vendor Part NumberK0239A3
    Package Qty1
    Package TypeEA
    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning