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ATK SP100 Dart SHP LS Next 441CI Short Block

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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

$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 Type	Short Block
Engine Displacement	441 cu. in.
Camshaft Type	Hydraulic Roller
Piston Material	Forged Aluminum
Crankshaft Material	Forged 4340 Steel

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Need To Know

Made to Order

This custom item will ship when completed

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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.

Guides & Documents

Warranty (ATK Engines)

Technical Information (ATK Engines)

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 WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

ATK Engines SP100 Specifications

KEY SPECS
MFG. Part #	SP100
Brand	ATK Engines
Crate Engine Type	Short Block
Engine Displacement	441 cu. in.
Camshaft Type	Hydraulic Roller
Piston Material	Forged Aluminum
Crankshaft Material	Forged 4340 Steel
Carburetor Included	No
Intake Manifold Included	No
Distributor Included	No
Connecting Rod Material	Forged 4340 Steel
Valve Covers Included	No
Cylinder Heads Included	No
Throttle Body Included	No
Timing Cover Included	No
Oil Pan Included	No
Water Pump Included	No
Harmonic Balancer Included	No
Flexplate Included	No
Flywheel Included	No
Air Cleaner Included	No
Spark Plugs Included	No
Spark Plug Wires Included	No
Computer Included	No
Wiring Harness Included	No
Reluctor Wheel	58x

GENERAL
Combustion Chamber Volume	66cc
Bore x Stroke (in)	4.125" x 4.125"
Assembled	Yes
Material Type	Cast Iron
GTIN Code	00653517006968
Sold in Quantity	Each
Connecting Rod Beam Style	H-Beam
Piston Style	Dish

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