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$275 Shipping

ATK SP26B LS 408 Stroker Short Block +10cc Dish Pistons 58 Tooth

$275 Shipping

ATK SP26B LS 408 Stroker Short Block +10cc Dish Pistons 58 Tooth
ATK Engines

|

#35020099

ATK SP26B LS 408 Stroker Short Block +10cc Dish Pistons 58 Tooth

  • 408ci LS short block with 10cc dish, boost/NOS ready
  • Forged pistons, rods, and crank for max power handling
  • 58-tooth reluctor for Gen 3 LS compatibility
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Engine Type:

Boost/NOS Ready

Naturally Aspirated

Piston Type:

10cc Dish

18cc Dish29cc Dish4cc Flat Top

$5,554.00

/each

Factory Shipped


Quantity

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Product Summary

Short Block Crate Engine Type, Internal Engine Balance

  • 408ci LS short block with 10cc dish, boost/NOS ready
  • Forged pistons, rods, and crank for max power handling
  • 58-tooth reluctor for Gen 3 LS compatibility
  • Ideal base for supercharged or nitrous builds
  • Built to handle 700+ HP reliably
See more details

Key Specs

Crate Engine TypeShort Block
Engine Displacement6.7 liters
Camshaft TypeHydraulic Roller
Piston MaterialForged Aluminum
Crankshaft MaterialForged 4340 Steel
See more specs

Need To Know

Truck Shipment

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

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855.313.9176
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Quick and Easy Returns

Return Policy

ATK Engines SP26-B Details

Engine Specifications:

  • Block: Seasoned 6.0L LQ4 with ARP main studs
  • 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 2000 bolts
  • Pistons: Manley 2618 forged +10cc dished moly skirt coated
  • Rings: Total Seal CS AP with steel top rings gapped for boost/nitrous
  • Compression Ratios: 64cc = 11.2:1 / 68cc = 10.7:1 / 72cc = 10.3:1 (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

    Notes: ATK’s Boost/Nitrous short blocks are meant for engines running these setups. Bearing clearances and ring gap have been taken into consideration for this series of short blocks.

    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
    CA Prop 65
    CARB warning

    ATK Engines SP26-B Specifications

    KEY SPECS
    MFG. Part #SP26-B
    BrandATK Engines
    Crate Engine TypeShort Block
    Engine Displacement6.7 liters
    Camshaft TypeHydraulic Roller
    Piston MaterialForged Aluminum
    Crankshaft MaterialForged 4340 Steel
    Carburetor IncludedNo
    Intake Manifold IncludedNo
    Distributor IncludedNo
    Connecting Rod MaterialForged 4340 Steel
    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 LQ4 block with 4.030 in. bore and 4.000 in. stroke, +10cc dished pistons and 58 tooth reluctor. Boost/nitrous ready with Manley forged 6.125 in. connecting rods, upgraded ARP main studs, ARP 2000 rod bolts and Total Seal CS AP ring package with steel rings gapped for engines with 10+ psi boost.
    Sold in QuantityEach
    Connecting Rod Beam StyleH-Beam
    Deck Height9.24"
    Main Bolt Style6-bolt
    Piston StyleDish
    Main Journal TypeChevy LS

    Fitment

    • GM LM4

    • GM LS6

    • GM LS2

    • GM LSA

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM L9H

    • GM L94

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM L9H

    • GM L94

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM L9H

    • GM L76

    • GM LC9

    • GM LMG

    • GM LY5

    • GM LY5

    • GM LM7

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • GM LS1

    • GM LS3

    • GM LS1

    • GM LS1

    • GM LS6

    • GM LS2

    • GM LS3

    • 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 LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ9

    • GM LQ4

    • GM L98

    • GM LM7

    • GM LQ4

    • GM L98

    • GM LQ9

    • GM L98

    • GM LQ4

    • GM L98

    • GM LQ4

    • GM LQ4

    • GM L98

    • GM L98

    • GM LQ4

    • GM LQ4

    • GM L98

    • GM LZ1

    • GM LS3

    • GM LM4

    • GM L77

    • 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 LQ4

    • GM L96

    • GM LMG

    • GM LY5

    • 4.8 Chevy LS V8

    • GM L59

    • GM LM7

    • 4.8 Chevy LS V8

    • GM LMG

    • GM LY5

    • 6.2 Chevy LS V8

    • GM L9H

    • GM LC9

    • GM LMG

    • GM LZ1

    • GM L9H

    • GM LC9

    • GM LMG

    • GM LZ1

    • GM LC9

    • GM LMG

    • GM LZ1

    • GM LMG

    • GM LY5

    • GM LH6

    • GM LS2

    • GM LM4

    • GM LM4

    • GM LM4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM L94

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM L94

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM L94

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM L94

    • GM LQ4

    • GM L20

    • GM L9H

    • GM LC9

    • GM LMG

    • GM LZ1

    • GM L33

    • GM L59

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM L96

    • GM LQ4

    • GM LQ4

    • GM L96

    • GM LQ4

    • GM L96

    • GM L96

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L20

    • GM LM7

    • GM LY2

    • 4.8 Chevy LS V8

    • GM L20

    • GM L94

    • GM LM7

    • GM LY2

    • GM LZ1

    • GM L94

    • GM LC9

    • GM LMG

    • GM LZ1

    • GM LM7

    • GM L59

    • GM LM7

    • GM LQ4

    • GM L96

    • GM LQ4

    • GM L96

    • GM LQ4

    • 6.2 Chevy LS V8

    • GM LH8

    • GM LH9

    • GM LH8

    • GM LH9

    • GM LS1

    • GM LS3

    • GM LS1

    • GM LS2

    Customer Impersonation Script