Hummer H1, H2, & HMMWV Duramax Conversions

The Duramax

If you want the pinnacle of off-road capability and performance, a Hummer H1 converted by Predator Inc. to use the Duramax engine is your best bet. With this update, your Hummer becomes a formidable machine, sporting a powerful Duramax diesel engine capable of approx. 465HP and 1100ft lbs of torque.

The Duramax conversion improved gas mileage is a major perk. You’ll get more miles out of a single tank of diesel thanks to the Duramax engines famed efficiency. People who want to take their Hummers off-road and explore the great outdoors will find this to their great benefit. Duramax performance upgrades prolong the engine’s life and make it reliable, enhancing its already stellar performance. The Duramax motor is very durable, and its sturdy construction makes it suitable for use in extreme environments. Your Hummer will maintain its peak level of performance wherever you drive it.

There are several benefits of installing a Predator Inc Duramax conversion in a Hummer H1. Some of the main benefits include:

1. Increased power: The Duramax diesel engine provides a significant increase in power and torque compared to the original gasoline engine, which can make your Hummer H1 more capable off-road and in towing and hauling applications.
2. Improved fuel efficiency: Diesel engines are generally more fuel-efficient than gasoline engines, which can save you money on fuel costs over time.
3. Better overall performance: The Duramax engine is a high-quality powerplant that is well-suited for heavy-duty applications. It is reliable and durable, and can provide better overall performance and longevity than the original gasoline engine.
4. Increased longevity : Duramax engine has longer lifespan than gasoline engine . And the engine having more power and torque means that it can handle more wear and tear.
5. more tune-ability: Diesels tend to be more easily modified than gas engines. A diesel engine can often handle more power than a similar-sized gasoline engine, and there are many aftermarket companies that offer performance upgrades for diesel engines.

Overall, the Predator Inc Duramax conversion is an excellent choice for those who want the ultimate combination of performance and reliability in their Hummer H1. Whether you’re tackling tough off-road terrain or simply want a powerful and efficient vehicle for everyday use, the Duramax conversion is the way to go.

It’s worth noting that the conversion process can be complex and time-consuming, and it’s recommended that it be done by a professional shop. Also you should check the legality of doing such modification in your region.

OPTIONAL 50 STATE LEGAL CONVERSIONS

Why a CARB “Legal Conversion” is Important to Consumers?
The short answer is that a Bureau of Automotive Repair (B.A.R.) label keeps your vehicle in compliance with regulatory bodies. 50 state legal conversions come with assurance knowing you are covered when you go to get your routine Smog check in California, or other counties that have adopted CARB’s standards.

The California Air Resources Board (CARB) requires all OEM emissions-related components for on-road use in California to obtain a “certification” for engine conversions. Your vehicle must be assigned a “ Bureau of Automotive Repair” (B.A.R.) Label, indicating successful completion of emissions and related tests in an authorized Smog testing facility. Failure to obtain a B.A.R. Label can result in fines and the inability of a vehicle to pass routine “Inspection and Maintenance” (I&M) tests, conducted by the state of CA. I&M tests are also being required in other states and major air quality regions throughout the country when registering, re-registering or transferring title of a vehicle. Predator Inc. has made significant investment in both time and resources to make sure your vehicle is covered.

Predator Inc. conversions fully supports efforts by the CARB and EPA to make certain that emissions-certified vehicle conversions are built. In fact, Predator Inc. is able to meet these requirements while delivering the performance benefits for which our Duramax conversions are widely known for. It is Predator’s intention to provide customers with up-to-date, technologically state-of-the-art, street-legal conversions that comply with regulatory requirements while preventing problems for the consumer when engaging in emissions test programs and registration procedures mandated by governmental agencies.

**This option is required on all 1998 & Newer California registered hummers for on-road use.

Predator Quality
Made in America

Predator Inc. is pleased to know that through our continues efforts and core-value of “Made in the USA,” is not just a tagline, but a means for knowing that we strive to produce and offer a high-standard of excellence!

Predator Built
Duramax Engines

Predator Diesel Engines are the next step in the evolution of diesel turbo vehicles and built for enhanced performance and designed to exceed all expectations.

6.6L DURAMAX LMM SPECS

• Engine:
  6.6L Duramax LMM, 90 degree V8 diesel
• Years Produced:
  2007.5 – 2010
• Displacement:
  403 cubic inches, 6.6 liters
• Head/Block Material:
  Aluminum cylinder heads, cast iron engine block
• Compression Ratio:
  16.8 : 1
• Bore:
  4.06 inches
• Stroke:
  3.90 inches
• Aspiration:
  Turbocharged & intercooled – Garrett VVT (variable vane turbocharger), air-to-air intercooler
• Injection:
  Direct injection, 26,000 psi Bosch high pressure common rail with CP3 injection pump
• Valvetrain:
  OHV (overhead valve), 4 valves per cylinder
• Emissions Equipment:
  • Diesel Particulate filter (DPF); minimizes particulate emissions
  • Exhaust gas recirculation (EGR); reduces NOx emissions
  • Diesel oxidation catalyst (DOC); converts carbon monoxide into CO2 & water

The LMM made its debut midway into the 2007 model year, phasing out the previous generation LBZ. The new diesel particulate system required “active regeneration” in order to periodically clean the DPF by means of literally burning the collected material. The LMM used a less favorable late and post injection technique in order to introduce raw diesel fuel into the diesel particulate filter, which is necessary to inhibit the high temperatures necessary for regeneration to occur. The late and post injection technique, as opposed to the “9th injector” technique, poses the threat of cylinder washing and fuel dilution as a result of raw diesel fuel passing through the cylinder on its journey to the exhaust system. The “9th injector” system, which would be adopted by the current LML Duramax, is considered favorable and eliminated these concerns. The typical response to abnormally high fuel dilution is to make sure that maintenance is performed regularly per the owners manual. The threat has yet to surface as a serious cause for concern, at least in the short run, despite criticism.

The LMM offered a slight increase in horsepower (+5) and torque (+10) over the LBZ. However, in GMC and Chevrolet class 4/5 trucks (4500/5500 models) the Duramax LMM was available in either a 300 hp/520 lb-ft or 330 hp/620 lb-ft version. The 2500/3500 Van variation of the engine made 250 hp/460 lb-ft of torque and mated to GM’s HydraMatic 4L85-E four speed automatic transmission instead of the Allison 1000. Detuning is common in commercial vehicles. 2010 was the last model year that the LMM was available, as it was replaced by the more powerful, more efficient LML for the 2011 model year.

6.6L DURAMAX LBZ SPECS

• Engine:
  6.6L Duramax LBZ, 90 degree V8 diesel
• Years Produced:
  2006 – 2007
• Displacement:
  403 cubic inches, 6.6 liters
• Head/Block Material:
  Aluminum cylinder heads, cast iron engine block
• Compression Ratio:
  16.8 : 1
• Bore:
  4.06 inches
• Stroke:
  3.90 inches
• Aspiration:
  Turbocharged & intercooled – Garrett VVT (variable vane turbocharger), air-to-air intercooler
• Injection:
  Direct injection, 26,000 psi Bosch high pressure common rail with CP3 injection pump and 7 hole fuel injectors
• Valvetrain:
  OHV (overhead valve), 4 valves per cylinder
• Emissions Equipment:
  Diesel oxidation catalyst (DOC) and exhaust gas recirculation (EGR)

The LBZ was relatively short lived, having been available for only two model years for no concise reason other than its replacement, the LMM, was capable of meeting stricter emissions regulations rolling into effect near the time of its retirement. Mechanically, the LBZ is nearly identical to the 2006 model year LLY. However, the LBZ features more aggressive engine tuning, yielding a substantial increase in horsepower and torque over its predecessor. The LBZ produced 360 horsepower and 650 lb-ft of torque to the LLY’s 310 horsepower and 605 lb-ft. By mid-model year for 2007, the LBZ was effectively replaced by the emissions compliant, diesel particulate filter equipped LMM.

The 6.6L Duramax LBZ’s applications included the Chevrolet Silverado HD, GMC Sierra, HD, Chevrolet Kodiak, and GMC TopKick (the Kodiak and TopKick being medium duty truck models. In the aftermarket, the LBZ is thought of the “hot rod” for its huge performance potential, abundance of support, and the fact that it is the last model produced without a diesel particulate filter. Information released by General Motors at the introduction of the LBZ state that the engine has an increased piston pin diameter and thicker connecting rod section over previous generations in addition to an improved block casting.

The LBZ was available mated to either the Allison 1000 six speed automatic or the ZF650 six speed manual transmission. 2007 would mark the last model year that any Duramax engine was available with a manual transmission. The Duramax LBZ was produced from 2006 to 2007 model years, with the LMM replacing it by mid-2007.