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Performance Built GMC/Chevy Duramax Engine 6.6L Models: LBZ, LML, LB7, LLY, and LMM

This unit has been remanufactured at our state of the art facility. We have carefully engineered a process that allows us to maximize performance and even stay within the price range of a used or salvage engine. This is a direct replacement for Dodge Ram GM and Chevrolet pickup trucks.

6.6L Duramax Engine Types
  • LML
  • LMM
  • LBZ
  • LLY
  • LB7
Compatible Vehicles
  • Kodiak
  • Hummer H1
  • Sierra HD
  • Silverado HD
  • Topkick
Original Manufacturer
  • GMC
  • Chevrolet
Included Components
  • long Block
  • Heads
  • Full Gasket Installation Set
  • Cranks
  • Cams
  • Pistons
  • Rods
New, Used, or rebuilt
  • Complete Performance Rebuild
  • Remanufactured
Chevy Duramax 6.6L Engine
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  • Ordering Info
  • Vehicle Info
  • Warranty
  • Our Process
Ordering Info
         
  Price LMM 2007-2009: $5,495.00 Phone: 952-239-5456
  Price LBZ 2006-2007: $5,295.00    
  Price LLY 2004-2005: $5,295.00    
  Price LB7 2001-2004: $4,995.00    
  Core Deposit: $1,000.00 Core Questions Office Hours: Monday-Friday 8:00am to 5:00pm CST.
Weekend and holiday hours vary
  Delivery Shipping: Call for Quote  
  Core Return Shipping: Call for Quote    
  5 Star Product Rating 5 out of 5    
    Buynow    
Duramax LML Specs / Applications  
Vehicles: Chevrolet Silverado HD, GMC Sierra HD, Chevrolet Kodiak, GMC Topkick
Years Covered: 2011
Torque: 765 LB-FT at 1,600 RPM
Horsepower: 397 HP at 3,000 RPM
Weight Dry: 965 LBS
Oil Capacity: 10 Quarts with filter
Aspiration: Variable geometry turbocharger with air to air inter cooler
Stroke: 3.90 in
Maximum Engine Speed: 3.250 RPM
Bore: 4.06 in
Injection: Direct injection, Bosch high pressure, 30,000 PSI injectors
Compression: 16.8:1
Configuration: 90 degrees V8
Metals used: Cast iron block, Aluminum heads
Displacement: 403 cubic inches, 6.6 liters

Notes:
The LML's are not only the most powerful of the 6.6's, they also are the cleanest engines in the series. This engine contains block, pump, piston, bearing, EGR and oil flow upgrades.

 
Duramax LMM Specs / Applications
Vehicles: Chevrolet Silverado HD, GMC Sierra HD, Chevrolet Kodiak, GMC Topkick
Years Covered: 2007, 2008, 2009, 2010
Torque: 660 LB-FT at 1,800 RPM
Horsepower: 365 HP at 3,100 RPM
Weight Dry: 835 LBS
Oil Capacity: 10 Quarts with filter
Aspiration: Variable geometry turbocharger with air to air inter cooler
Stroke: 3.90 in
Maximum Engine Speed: 3.450 RPM
Bore: 4.06 in
Injection: Bosch high pressure, 26,000 psi injectors
Compression: 16.8:1
Configuration: 90 degrees V8
Displacement: 403 cubic inches, 6.6 liters

Notes:
This engine has 90% less emissions than its predecessors. The emissions equipment also lowers the overall fuel efficiency.

 
Duramax LBZ Specs / Applications
Vehicles: Chevrolet Silverado HD, GMC Sierra HD, Chevrolet Kodiak, GMC Topkick
Years Covered: 2006
Torque: 650 LB-FT at 1,600 RPM
Horsepower: 360 HP at 3,200 RPM
Weight Dry: 835 LBS
Oil Capacity: 10 Quarts with filter
Aspiration: Variable geometry turbocharger with air to air inter cooler
Stroke: 3.90 in
Maximum Engine Speed: 3.250 RPM
Bore: 4.06 in
Injection: Bosch high pressure, 26,000 psi injectors, seven hose injection
Compression: 16.8:1
Configuration: 90 degrees V8
Displacement: 403 cubic inches, 6.6 liters

Notes:
The LBZ has been given the name of "Hot Rod" from its creators because of its potential in the aftermarket.

 
Duramax LLY Specs / Applications
Vehicles: Chevrolet Silverado HD, GMC Sierra HD, Chevrolet Kodiak, GMC Topkick, Hummer H1
Years Covered: 2004, 2005, 2006
Torque: 520 LB-FT at 1,600 RPM, 605 LB-FT 1,600 RPM (2006)
Horsepower: 310 HP at 3,000 RPM
Weight Dry: 835 LBS
Oil Capacity: 10 Quarts with filter
Aspiration: Variable geometry turbocharger with air to air inter cooler
Stroke: 3.90 in
Maximum Engine Speed: 3.250 RPM
Bore: 4.06 in
Injection: Bosch high pressure, 26,000 psi injectors, seven hose injection
Compression: 17.5:1 (16.8:1)
Configuration: 90 degrees V8
Metals used: Cast iron block, Aluminum heads
Displacement: 403 cubic inches, 6.6 liters

Notes:
GM has built this engine with the foresight of future emissions standards. The piston and oil cooling jets are now made from aluminum.

 
Duramax LB7 Specs / Applications
Vehicles: Chevrolet Silverado HD, GMC Sierra HD, Chevrolet Kodiak, GMC Topkick
Years Covered: 2001, 2002, 2003, 2004
Torque: 500 LB-FT at 1,600 RPM (2001), 520 LB-FT at 1,800 RPM (2004)
Horsepower: 235 HP at 2,700 RPM (2001), 300 HP at 3,100 RPM (2004)
Weight Dry: 835 LBS
Oil Capacity: 10 Quarts with filter
Aspiration: Turbocharger, maximum boost: 20 PSI
Stroke: 3.90 in
Maximum Engine Speed: 3.250 RPM
Bore: 4.06 in
Injection: Direct injection, Bosch high pressure, 23,000 psi injectors
Compression: 17.5:1
Configuration: 90 degrees V8
Metals used: Cast iron block, Aluminum heads
Displacement: 402 cubic inches, 6.6 liters

Notes:
The LB7 has the best fuel mileage and simplest design of all others in this class.

Our Warranty:

This engine comes stock with a 12 month. We have several other warranty packages that are available for upgrade. Feel free to ask your sales associate if you qualify for one of our extended warranty upgrade options.
Call 1-888-995-PART or 1-888-995-7278

List Smart Parts Automotive provides a twelve month nation wide warranty against any manufactured defects on this part.

List We do not charge restocking or shipping fees when a engine needs to be warranted. Restocking and shipping fees are only be applied if a customer wants to return a non defective unit or is outside the continental United States.

ListBuyers warranty begins at original date of purchase and expires 12 months or 12 thousand miles thereafter.


This warranty does not cover any of the following:

List Use of engine, clutches, manual transmission, transfer case, drive line, and/or differential for purposes for which it was not originally designed (such as off-road, race car, etc.)

List Abuse, neglect, accident, or improper towing

List Improper installation and maintenance, INCLUDING FAILURE TO FILL THE UNIT WITH PROPER FLUAND MAINTAIN FLULEVEL

List Towing charges, vehicle rental

List Loss of time, inconvenience, loss of use of vehicle, commercial loss or consequential damages

List Failure because of defects or inefficiencies or parts or assemblies not furnished with the transmission (flywheel, clutch, drive shaft, etc)

List Broken Gears or Shafts

List Cracked or broken cases

List No claims for labor or consequential damages will be accepted

List We are not liable for misuse or negligence causing damage, defect, injury, or loss.

List Unit must be returned for our inspection to determine fault.


Warranty Process:

In the rare case of a engine failure please call our sales department where a representative will assist you in the warranty process. Call Mon-Fri 9-5 Central 1-888-995-7278

Dyno-Tested
Every engine case has been rigorously tested. The process is done by simulating the conditions encountered during tough off road use. This ensures that when your part arrives it has been checked for noises, leaks, vibrations and performance.

O.E.M.
O.E.M. stands for Original Equipment Manufacturer. Our parts meet or exceed the guidelines set forth by the manufacturer.

Upgrades
Some engines have inherent factory flaws causing them to chronically break down. Through years of experience we have developed several procedures to help fix these problems.

Certified
Every remanufactured engine has been built and inspected by a certified technician. Our technicians have an average experience of 10 years.

New Parts
All wearable parts are replaced, this includes: seals, bearings, O-rings, bushings, bands, gaskets, and much more.

Premium Upgrades
Dyno Tested
Certified Builder
 
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GMC Duramax 6.6L Engine
Chevy / GMC 6.6 Liter Duramax Engine
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