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SP103 Elite Series GM Gen V LT 376 ci. Short Block w/Forged Crank, H-Beam Rods, +12 cc Dished Forged Pistons
InfoVehicle Info Needed
ATK ENGINESPART NUMBER: 059-SP103

SP103 Elite Series GM Gen V LT 376 ci. Short Block w/Forged Crank, H-Beam Rods, +12 cc Dished Forged Pistons

$7,38752
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376 ci.
Elite Series GM Gen V LT Short Block
  • 376 ci. Displacement
  • GM LT1, LT4 Aluminum Block (4.065 in. Bore)
  • Forged 4340 Steel Crank (3.622 in. Stroke)
  • Forged 4340 H-Beam Rods
  • Forged 2618 Dished +12 cc Pistons
  • Steel Top Ring w/Napier 2nd Rings

    ATK Engines SP103 Elite Series GM Gen V LT Short Block Features:

    • New GM Gen V LT1/LT4 Aluminum Block
    • Built for Naturally Aspirated, Boosted, or Nitrous Engines
    • Installed Factory Piston Squirters

    • ATK Engines SP103 Elite Series GM Gen V LT Short Block Specs:

    • Bore: 4.065 in.
    • Stroke: 3.622 in.
    • Displacement: 376 ci.
    • Crankshaft: Manley 4340 Forged w/58 Tooth Reluctor Wheel
    • Rods: Manley 4340 forged H-beam 6.125 in. w/ARP 2000 bolts
    • Pistons: 2618 Forged +12 cc Dished
    • Rings: Total Seal CS AP Steel Top Ring with Napier 2nd Ring Set
    • Camshaft Bearings: Installed & Positioned to OEM Position
    • Freeze Plugs: Installed with Sealant
    • Oil Galley Plugs: Installed with Sealant

    ATK Engines SP103 Recommended Components (Each Sold Separately):

    • Balancer Internally balanced such as TCI 918856 or equivalent
    • Flexplate Internally balanced such as TCI 399860 or equivalent
    • Head Gasket .051 in. Compressed Thickness such as Cometic C15203-051 or equivalent
    • OEM-Style Oil Pump such as AC Delco 12686434 or equivalent
    • 5W30 NON-SYNTHETIC oil for first 3000 miles

    Please CLICK HERE for ATK Warranty

    Part TypeEngine Short Block
    BrandATK ENGINES
    Package Height36.0
    Package Width36.0
    Package Length36.0
    Weight445.0 PG
    Part CategoryPerformance Parts
    Part FitmentSemi Universal
    Vendor Part NumberSP103
    Package Qty1
    Package TypeEA
    No Questions
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