Remanufactured 8.1L V8 High Output Marine Long Block Engine for Big Block Chevy Applications
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ATK ENGINESPART NUMBER: 059-DMWEHO

Remanufactured 8.1L V8 High Output Marine Long Block Engine for Big Block Chevy Applications

$5,29929
Core Charge: $1,02000
Truck Freight
ShippingShips on 11/10/2026
Lowest PriceLowest Price Guarantee

Remanufactured High Output Marine Long Block Engine
  • 2004-2007 Marine Applications
  • 8.1L 496 cid Big Block Chevy V8, OHV 16-Valve
  • Block Casting 12558110
  • Head Castings 12558162
  • Sold Individually

    The 8.1L Vortec is the last of the Big Block Chevy family and a mainstay in inboard marine power. This is the high output marine version, built with the marine-specific camshaft and head combination rather than the truck configuration. Covers 2004-2007 marine applications.

    ATK Engines DMWEHO Remanufactured Marine Long Block Engine Features:

    • High output marine build of the 8.1L Big Block Chevy V8.
    • Block casting 12558110 with head castings 12558162.
    • Camshaft casting 766 and crankshaft casting 430.
    • Heads, block, crankshaft and camshaft machined to specification.
    • Tested after assembly for compression and oil pressure.

    Please CLICK HERE for ATK Warranty

  • Part TypeEngine
    BrandATK ENGINES
    Package Height29.0
    Package Width32.0
    Package Length36.0
    Weight435.0 PG
    Part CategoryReplacement Parts
    Engine Block TypeV
    Head Casting Number12558162
    Cylinder Quantity8
    QuantitySold Individually
    Engine Assembly StyleLong Block
    Part FitmentSemi Universal
    Engine Displacement496 cid
    Fuel TypeGas
    Camshaft TypeOHV
    Block Casting Number12558110
    Vendor Part NumberDMWEHO
    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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