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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 with vacuum port plugged on carburetor
  • Spark Plug Gap: .035”
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Key Specs

Crate Engine TypeShort Block
Piston MaterialForged Aluminum
Crankshaft MaterialForged 4340 Steel
Connecting Rod MaterialForged 4340 Steel
Engine BalanceInternal
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Need To Know

Truck Shipment

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Return Policy

ATK Engines SP32 Details

Engine Specifications:

  • Block: Seasoned 6.0L LQ4
  • Year Range: 2001-2007
  • Bore/Stroke: 4.030” x 4.000”
  • Displacement (cu.in): 408
  • Crankshaft: Manley 4340 forged 58 tooth reluctor wheel
  • Rods: Manley 4340 forged H beam 6.125” ARP 8740 bolts
  • Pistons: Manley 2618 forged -4cc flat top moly skirt coated
  • Rings: Plasmamoly
  • Compression Ratios: 64cc = 11.9:1 / 68cc = 11.4:1 / 72cc = 11.0:1 (can vary due to deck height/gasket thickness)
  • 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
  • Oil Pump: Melling #10295 with high pressure spring

    Engine Info:

  • Oil: 10W40 Non synthetic for first 3000 miles
  • Oil Filter: Wix or K and N per application

    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 SP32 Specifications

    KEY SPECS
    MFG. Part #SP32
    BrandATK Engines
    Crate Engine TypeShort Block
    Piston MaterialForged Aluminum
    Crankshaft MaterialForged 4340 Steel
    Connecting Rod MaterialForged 4340 Steel
    Engine BalanceInternal
    Rear Main Seal Style1-piece
    Oil Pan IncludedNo
    Timing Cover IncludedNo
    GENERAL
    AssembledNo
    Material TypeCast Iron
    Notes+4cc cylinder head volume. 58-tooth reluctor,
    Sold in QuantityEach
    Connecting Rod Beam StyleH-Beam
    Main Bolt Style6-bolt
    Piston StyleFlat Top
    Main Journal TypeChevy LS