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ATK SP100 Dart SHP LS Next 441CI Short Block

$275 Shipping

ATK SP100 Dart SHP LS Next 441CI Short Block
ATK Engines

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#35020052

ATK SP100 Dart SHP LS Next 441CI Short Block

  • Bore/Stroke: 4.000” x 3.750”
  • Displacement: 377CI
  • Crankshaft: Scat 4340 forged external balance rear of the crank/internal balance front of the crank
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$7,206.99

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Product Summary

Short Block Crate Engine Type, No Value Engine Balance

  • Bore/Stroke: 4.000” x 3.750”
  • Displacement: 377CI
  • Crankshaft: Scat 4340 forged external balance rear of the crank/internal balance front of the crank
  • Rods: Scat 4340 forged H beam with ARP 8740 bolts
  • Pistons: 2618 Forged -5cc flat top
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Key Specs

Crate Engine TypeShort Block
Engine Displacement441 cu. in.
Camshaft TypeHydraulic Roller
Piston MaterialForged Aluminum
Crankshaft MaterialForged 4340 Steel
See more specs

Need To Know

Made to Order

This custom item will ship when completed

Truck Shipment

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

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ATK Engines SP100 Details

Looking for a large cubic inch short block to make big NA power? This 441CI Dart SHP LS Next short block is the perfect foundation!

Engine Specifications:

  • Block: Dart SHP LS Next Cast Iron
  • Bore/Stroke: 4.125” x 4.125”
  • Displacement (cu.in): 441 CID
  • Crankshaft: Scat 4340 forged 58 tooth reluctor wheel
  • Rods: Scat 4340 forged H beam 6.125” ARP 2000 bolts
  • Pistons: 2618 forged +22cc dished moly skirt coated
  • Rings: Steel Top Ring with Napier 2nd Ring Set
  • Compression Ratios: 66cc = 10.1:1 / 68cc = 9.9:1 / 70cc = 9.8:1 (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 #10296 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
    CA Prop 65
    CARB warning

    ATK Engines SP100 Specifications

    KEY SPECS
    MFG. Part #SP100
    BrandATK Engines
    Crate Engine TypeShort Block
    Engine Displacement441 cu. in.
    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
    Cylinder Heads IncludedNo
    Throttle Body IncludedNo
    Timing Cover IncludedNo
    Oil Pan 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
    Reluctor Wheel58x
    GENERAL
    Combustion Chamber Volume66cc
    Bore x Stroke (in)4.125" x 4.125"
    AssembledYes
    Material TypeCast Iron
    GTIN Code00653517006968
    Sold in QuantityEach
    Connecting Rod Beam StyleH-Beam
    Piston StyleDish

    Questions & Answers

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    Fitment

    • GM LM4

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    • GM LSA

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    • 6.2 Chevy LS V8

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    • 4.8 Chevy LS V8

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    • GM L96

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    • 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