$275 Shipping

ATK HP110 535HP Chevy LQ4 6.0L With LS3 Heads Crate Engine

$275 Shipping

#35020253

ATK HP110 535HP Chevy LQ4 6.0L With LS3 Heads Crate Engine

535 HP
485 TQ
OE LQ4/LQ9 6.0L Iron Block

$5,799.00

/each

In Stock

Order soon, only 1 left in stock!

Quantity

Need Help? Call to Order

Add to a list

Select an engine to verify Fitment

Select Engine

Product Summary

Long Block Crate Engine Type, 10.1:1 Compression Ratio

535 HP
485 TQ
OE LQ4/LQ9 6.0L Iron Block
4.030 x 3.622 Bore/Stroke
371 ci Displacement

See more details

Key Specs

Crate Engine Type	Long Block
Compression Ratio	10.1:1
Engine Displacement	371 cu. in.
Camshaft Type	Hydraulic Roller
Cylinder Head Material	Aluminum

See more specs

Need To Know

Truck Shipment

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

Need help?

855.313.9176

View the Help Center

Quick and Easy Returns

Return Policy

ATK Engines 35020253 Details

The ATK HP110 Chevy LQ4 6.0L base engine is a powerful performance package delivering 535 horsepower and 485 lb-ft of torque, based on an OE LQ4/LQ9 6.0L iron block with a 4.030" bore and 3.622" stroke, resulting in a total displacement of 371 cubic inches. It features an OE GM 24-tooth reluctor wheel crankshaft, OE powder metal connecting rods, and hypereutectic pistons providing a 10.1:1 compression ratio. The valvetrain includes a custom performance hydraulic roller camshaft, OE 1.7 ratio rocker arms with trunnion upgrades, and ATK LS3-style rectangle port aluminum heads with 69cc chambers and 255cc intake runners. The engine also includes a Melling M295 oil pump, single roller timing chain, and is designed to work with LS3-style EFI intake manifolds, 42lb injectors, and 1 5/8" or larger headers. It requires 91+ octane fuel, a 2500+ stall converter, and ECM tuning for optimal performance.

535 HP
485 TQ
OE LQ4/LQ9 6.0L Iron Block
4.030 x 3.622 Bore/Stroke
371 ci Displacement
OE GM 24 tooth reluctor wheel Crankshaft
OE powder metal Rods
Hypereutectic 10.1 compression Pistons
Moly Rings
Hyd. Roller Camshaft
Custom performance grind Cam Specs
OE single roller Timing Chain
ATK LS3 rectangle port aluminum 69cc/255cc 2.160”in/1.600”ex Cylinder Heads
OE 1.7 ratio with trunnion upgrade Rocker Arms
Melling M295 Oil Pump

Application

Designed for 1999-2020 Chevy Applications.

Specs

Conventional / Non Synthetic 10W30 Oil
Wix or K&N Oil Filter
Set to factory specifications via PCM module (ECM TUNING REQUIRED) Timing
.040” Spark Plug Gap
18726543 Firing Order
91+ Octane
2500+ Stall Converter
1 5/8+ Headers Exhaust

Guides & Documents

Warranty (ATK Engines)

Technical Information (ATK Engines)

Warranty Information

Warranty claims must be filed with the manufacturer in accordance to their policies.

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 35020253 Specifications

KEY SPECS
MFG. Part #	35020253
Brand	ATK Engines
Crate Engine Type	Long Block
Compression Ratio	10.1:1
Engine Displacement	371 cu. in.
Camshaft Type	Hydraulic Roller
Cylinder Head Material	Aluminum
Piston Material	Hypereutectic Aluminum
Carburetor Included	No
Intake Manifold Included	No
Distributor Included	No
Connecting Rod Material	Powdered Metal
Valve Covers Included	No
Engine Balance	Internal
Cylinder Heads Included	Yes
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

GENERAL
Torque	480 ft./lbs.
Horsepower	535 horsepower
Combustion Chamber Volume	69cc
Bore x Stroke (in)	4.030" x 3.622"
GTIN Code	00653517731938
Sold in Quantity	Each

Ratings & Reviews

Be the first to write a review.

Questions & Answers

Be the first to ask a question.

Fitment

2006-2007 Cadillac CTS

GM LS2

2002-2011 Cadillac Escalade

GM LQ9

2003-2006 Cadillac Escalade ESV

GM LQ9

2002-2006 Cadillac Escalade EXT

GM LQ9

2007-2011 Chevy Avalanche

GM L76

2000-2002 Chevy C1500

GM LQ4

2005-2007 Chevy Corvette

GM LS2

2007 Chevy Silverado 1500 Classic

GM LQ4

2001-2003 Chevy Silverado 1500 HD

GM LQ4

2005-2006 Chevy Silverado 1500 HD

GM LQ4

2007 Chevy Silverado 1500 HD

GM LQ9

2007 Chevy Silverado 1500 HD Classic

GM LQ4

2019 Chevy Silverado 1500 LD

GM L98

2000-2004 Chevy Silverado 2500

GM LQ4

2005 Chevy Silverado 2500

GM L98
GM LQ9

2006-2014 Chevy Silverado 2500

GM L98

2001-2011 Chevy Silverado 2500 HD

GM LQ4

2012-2014 Chevy Silverado 2500 HD

GM L98

2007 Chevy Silverado 2500 HD Classic

GM LQ4

2001-2006 Chevy Silverado 3500

GM LQ4

2007-2013 Chevy Silverado 3500

GM L98

2015-2018 Chevy Silverado 3500

GM L98

2007 Chevy Silverado 3500 Classic

GM LQ4

2007-2011 Chevy Silverado 3500 HD

GM LQ4

2012 Chevy Silverado 3500 HD

GM L98

2013 Chevy Silverado 3500 HD

GM LZ1

2005-2006 Chevy SSR

GM L77

2000-2006 Chevy Suburban 2500

GM LQ4

2007-2011 Chevy Suburban 2500

GM L96

2008-2011 Chevy Tahoe

GM LZ1

2006-2009 Chevy Trailblazer

GM LS2

2001-2014 GMC Savana 1500

GM LQ4

2001-2013 GMC Savana 2500

GM LQ4

2002-2013 GMC Savana 3500

GM LQ4

1999-2011 GMC Sierra 1500

GM LZ1

2001-2003 GMC Sierra 1500 HD

GM LQ4

2005-2006 GMC Sierra 1500 HD

GM LQ4

2007 GMC Sierra 1500 HD Classic

GM LQ4

1999-2004 GMC Sierra 2500

GM LQ4

2001-2011 GMC Sierra 2500 HD

GM LQ4

2015-2019 GMC Sierra 2500 HD

GM L96

2007 GMC Sierra 2500 HD Classic

GM LQ4

2001-2006 GMC Sierra 3500

GM LQ4

2007 GMC Sierra 3500

GM L96

2007 GMC Sierra 3500 Classic

GM LQ4

2007-2011 GMC Sierra 3500 HD

GM L96

2015-2019 GMC Sierra 3500 HD

GM L96

2001 GMC Sierra C3

GM LQ4

2008-2013 GMC Yukon

GM LZ1

2001-2011 GMC Yukon XL 1500

GM LQ4

2012-2014 GMC Yukon XL 1500

GM L96

2000-2011 GMC Yukon XL 2500

GM LQ4

2012-2013 GMC Yukon XL 2500

GM L96

2003-2007 Hummer H2

GM LQ4

2005-2006 Pontiac GTO

GM LS2