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Product Summary

Short Block Crate Engine Type, Internal Engine Balance

  • Oil: Conventional / Non Synthetic 10W30
  • Oil Filter: Wix or K&N
  • Timing: 34-36 Degrees
  • Spark Plug Gap: .035”
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Key Specs

Crate Engine TypeShort Block
Engine Displacement6 liters
Camshaft TypeHydraulic Roller
Piston MaterialHypereutectic Aluminum
Crankshaft MaterialCast Steel
See more specs

Need To Know

Truck Shipment

Truck shipments must be pre-paid with a credit card, certified check or money order

Quick and Easy Returns

Return Policy

ATK Engines SP19-F Details

Engine Specifications:

  • Block: Seasoned 6.0L LQ9
  • Year Rang: 2001-2007
  • Bore/Stroke: 4.030” x 3.622”
  • Displacement (cu.in): 370
  • Crankshaft: OEM GM 24 tooth Reluctor wheel
  • Rods: OEM GM Forged Powder Metal
  • Pistons: Stock Hypereutectic flat tops with no valve reliefs
  • Compression Ratios: 64cc = 10.7:1 / 68cc = 10.2:1 / 72cc = 9.8:1 (can vary due to deck height/gasket thickness)
  • Rings: Plasmamoly
  • Camshaft Bearings: Installed and Clocked to OEM Position
  • Freeze Plugs: Installed and Sealed
  • Oil Galley Plugs: Installed and Sealed

    Recommended Components:

  • Balancer- Internal balance
  • Flex plate/ Flywheel- Internal balance
  • Head Gasket: .051” or per application

    Engine Info:

  • Oil: 5W30 Non synthetic for first 3000 miles
  • Oil Filter: Wix or K and N per application
    Notes: Crankshaft flange is .857” thick.

    Disclaimer: The recommended components listed are ATK’s recommendations of parts to be used, applications vary and your build may need something different. Contact ATK for a recommendation if you’re not certain about a component to use. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. ATK reserves the right to substitute parts used in engines if necessary.

  • CARB Warning

    Follow EPA, CARB, and state regulations for engine changes

    Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine

    ATK Engines SP19-F Specifications

    KEY SPECS
    MFG. Part #SP19-F
    BrandATK Engines
    Crate Engine TypeShort Block
    Engine Displacement6 liters
    Camshaft TypeHydraulic Roller
    Piston MaterialHypereutectic Aluminum
    Crankshaft MaterialCast Steel
    Carburetor IncludedNo
    Intake Manifold IncludedNo
    Distributor IncludedNo
    Connecting Rod MaterialPowdered Metal
    Valve Covers IncludedNo
    Engine BalanceInternal
    Cylinder Heads IncludedNo
    Rear Main Seal Style1-piece
    Throttle Body IncludedNo
    Oil Pan IncludedNo
    Timing Cover IncludedNo
    Water Pump IncludedNo
    Harmonic Balancer IncludedNo
    Flexplate IncludedNo
    Flywheel IncludedNo
    Air Cleaner IncludedNo
    Spark Plugs IncludedNo
    Spark Plug Wires IncludedNo
    Computer IncludedNo
    Wiring Harness IncludedNo
    GENERAL
    AssembledYes
    Material TypeCast Iron
    NotesGM 6.0L cast block with 4.030 in. bore and 3.622 in. stroke. Stock GM crankshaft with stock connecting rods and flat top, no valve relief pistons and 24 tooth reluctor wheel.
    Sold in QuantityEach
    Connecting Rod Beam StyleI-Beam
    Deck Height9.24"
    Main Bolt Style6-bolt
    Piston StyleFlat Top
    Main Journal TypeChevy LS

    Fitment

    • GM LM4

    • GM LM7

    • GM LM7

    • GM LM7

    • GM LC9

    • GM LMG

    • GM LY5

    • GM LY5

    • GM LM7

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LS4

    • GM LS4

    • 4.8 Chevy LS V8

    • GM LM7

    • 4.8 Chevy LS V8

    • GM L20

    • GM LM7

    • GM LY2

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LM7

    • GM LM4

    • GM LMG

    • GM LY5

    • GM LM7

    • GM L59

    • GM LM7

    • GM LC9

    • GM LMG

    • GM LY5

    • GM LC9

    • GM LMG

    • GM LMG

    • GM LY5

    • GM LMG

    • GM LY5

    • 4.8 Chevy LS V8

    • GM L59

    • GM LM7

    • 4.8 Chevy LS V8

    • GM LMG

    • GM LY5

    • GM LC9

    • GM LMG

    • GM LMG

    • GM LY5

    • GM LH6

    • GM LM4

    • GM LM4

    • GM LM4

    • 4.8 Chevy LS V8

    • GM LM7

    • 4.8 Chevy LS V8

    • GM L33

    • GM LM7

    • 4.8 Chevy LS V8

    • GM L33

    • 4.8 Chevy LS V8

    • GM LM7

    • 4.8 Chevy LS V8

    • GM L33

    • 4.8 Chevy LS V8

    • GM LM7

    • 4.8 Chevy LS V8

    • GM L33

    • GM L20

    • GM LC9

    • GM LMG

    • GM L33

    • GM L59

    • GM LM7

    • GM LM7

    • 4.8 Chevy LS V8

    • GM L20

    • GM LM7

    • GM LY2

    • GM LC9

    • GM LMG

    • GM LM7

    • GM L59

    • GM LM7

    • GM LH8

    • GM LH9

    • GM LH8

    • GM LH9

    Customer Impersonation Script