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ATK SPE4271500 Dart LS Next 427CI 1500HP Rated Short Block

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#35020074

ATK SPE4271500 Dart LS Next 427CI 1500HP Rated Short Block

Oil: Conventional / Non Synthetic 10W30 with Comp Cam zinc additive #159 for first 3000 miles
Oil Filter: Wix or K&N per application
Timing: 34-36 Degrees

Cubic Inch:

427 c.i.

Horsepower Rated:

1500 HP Rated

$8,399.00

/each

Factory Shipped

Quantity

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Product Summary

Short Block Crate Engine Type, 10.4:1 Compression Ratio

Oil: Conventional / Non Synthetic 10W30 with Comp Cam zinc additive #159 for first 3000 miles
Oil Filter: Wix or K&N per application
Timing: 34-36 Degrees

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Key Specs

Crate Engine Type	Short Block
Compression Ratio	10.4:1
Engine Displacement	7 liters
Camshaft Type	Hydraulic Roller
Piston Material	Forged Aluminum

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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 SPE4271500 Details

ATK's new Elite Series LS Short Blocks are a step of above the rest. Every engine is a well thought out parts combination that is purpose built for each application.

Engine Specifications:

Block: Dart SHP LS Next Cast Iron
Bore/Stroke: 4.125" x 4.000"
Displacement (cu.in): 427 CID
Crankshaft: Dart Billet 58 tooth reluctor wheel
Rods: Manley H Tuff H Beam 6.125" ARP 2000 bolts
Pistons: JE Ultra 17.4cc Dish 2618 Forged with Thermal Coating, Lateral Gas Ports, .200″ Pin
Rings: JE Pro Seal with Carbon Steel Top Ring
Compression Ratios: 66cc= 10.4:1 / 68cc= 10.2:1 / 70cc= 10.0:1 (with .044″ gasket)
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: 20W50 Non synthetic for first 3000 miles
Oil Filter: Wix or K and N per application
Oil Pump: Melling 10296 with red spring

Feature and Benefits

Dart LS Next SHP Skirted Block – The Dart block features a full skirt design with a priority main oiling system, steel four bolt main caps and is setup to run a 4 or 6 bolt cylinder head.
Dart BILLET Crankshaft – The Dart Billet crankshafts are proven to handle over 2000HP and outfitted with Center Counter Weights. The CCW not only add material and strength to the center of the crank, but they also add balance and stability that counters the jump rope effect under high RPM and increased power.
Manley H Tuff H Beam Connecting Rods – Manley's H Tuff Rods have become the benchmark for fully machined high end connecting rods in the performance industry. These Rods include double-ribbed pin surround and increased cross sectional thickness in critical areas; for a connecting rod that will handle higher boost and horsepower levels than a standard H Beam Rod.
JE Ultra Series Pistons – The Ultra line combines all the best, most desirable piston features, such as thermal barrier crown coating, lateral gas ports, thick – wall wrist pins and a new forging technology for the ultimate strength. They are specifically designed for Massive Power and Boost right out of the box.
JE Pro Steel Rings – The JE Pro Steel Rings are designed to maximize horsepower through precision sealing of combustion pressure. This ring pack will have a carbon steel top ring for high boost applications.
Clevite H Bearings – These bearings were primarily developed for Nascar racing, but are well suited for High Performance applications as well. They're especially good for high revving engines and getting the exact clearances needed with consistency.
Suitable for a Single or Twin Turbo application!
Custom builds available!

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

WARNING:

Cancer and Reproductive Harm – www.P65Warnings.ca.gov

CARB warning

ATK Engines SPE4271500 Specifications

KEY SPECS
MFG. Part #	SPE4271500
Brand	ATK Engines
Crate Engine Type	Short Block
Compression Ratio	10.4:1
Engine Displacement	7 liters
Camshaft Type	Hydraulic Roller
Piston Material	Forged Aluminum
Crankshaft Material	Billet Steel
Carburetor Included	No
Intake Manifold Included	No
Distributor Included	No
Connecting Rod Material	Forged 4340 Steel
Valve Covers Included	No
Engine Balance	Internal
Cylinder Heads Included	No
Rear Main Seal Style	1-piece
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
Camshaft Duration (.050 in)	239° intake / 255° exhaust
Camshaft Lift (in)	.624 intake / .624 exhaust
Bore x Stroke (in)	4.069" x 4.125"
Assembled	No
Material Type	Cast Iron
Sold in Quantity	Each
Connecting Rod Beam Style	H-Beam
Piston Style	Flat Top

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