Years of duramax - Key Components of Duramax Engines. If you want to achieve 30 mpg with a Duramax engine, it’s important to understand the key components that make up the engine. Some of the most important components include the turbo, transmission, injectors, cooling system, and turbo system.. Related article!: Worst Years For The Duramax

 
Jan 9, 2023 ... 211K views · 1 year ago ...more. Pickup Truck ... 3.0 Duramax 120,000 Mile Review | Chevy 1500 ... 3.0 Duramax vs 5.3L EcoTec3 - Which is Better?. Kent newman center

Fuel System Problems. Your Duramax relies on a clean and unobstructed fuel supply. Issues with the fuel filter, fuel line, or fuel injectors can cause reduced engine power. A faulty injector can disrupt the fuel mixture, and clogged fuel filters restrict fuel flow, both potentially leading to limp mode activation for protection.The 2011-2016 Duramax suffers from a high pressure fuel pump issue unique to this year range. Failure of this CP4 pump is usually catastrophic, causing instant contamination of the entire fuel system with metal particulates. Chances are, if you’re looking at this page, you’re well aware of the problem.GM 6.6L L5P V-8 Duramax Turbo Diesel Engine Vehicle Applications; Model Year Vehicle Transmission Power (hp / kW) @ RPM Torque (lb-ft / Nm) @ RPM; 2017 – 2023PowerStrokes came around in 1994, and Cummins' first purpose-built automotive diesel engine debuted all the way back in 1932, and has been affiliated with …LB7: 2001 – 2004. As the original Duramax model, the LB7 is still extremely popular with diesel enthusiasts due to its lack of emissions control parts. In general, it’s a very durable and reliable engine. However, as the first models hit the 100,000-mile mark, some issues cropped up. Injector failure was a common problem on the LB7 engines.The 2023 Duramax engines, including the 3.0-liter inline-six, have seen power and torque improvements, making them a great option for those seeking a diesel engine in a light truck or SUV application.Mar 21, 2023 · The 6.6-liter Duramax LBZ was a short-lived engine only available for two model years. To meet increasingly strict emissions standards, the LBZ was a more aggressively tuned version of the previous LLY engine. Mechanically, the LBZ used the same Duramax parts as the LLY, but the LBZ generated 360 horsepower, while the LLY only generated 310 ... The 2021 and 2022 Colorado model years are great picks and are the most reliable options from the second generation. For 2021 the Colorado received an updated front-end design, a stamped Chevrolet logo across the tailgate, and some minor standard and optional equipment shuffling. It carried over to 2022 unchanged.Duramax History, Lesson 5: LML. In order to meet ever-increasing emission standards and keep up with the Joneses (at the time, Ford’s upcoming 6.7L Power Stroke), GM amended the Duramax once more for the 2011 model year. The fifth generation common-rail V8 was given the RPO code LML. While it was nothing like a full redesign—it still ...The History of Duramax engines. Whatever its year or generation, every Duramax is a 6.6L V8 unit. Unlike Cummins or Ford, who altered key engine features such as displacement, cylinder head design or fuel injection throughout the years, GM has retained the same general layout from the beginning.Jul 6, 2021 · LB7: 2001 – 2004. As the original Duramax model, the LB7 is still extremely popular with diesel enthusiasts due to its lack of emissions control parts. In general, it’s a very durable and reliable engine. However, as the first models hit the 100,000-mile mark, some issues cropped up. Injector failure was a common problem on the LB7 engines. As a result, a number of much-awaited models at the time featured the 6.6-liter LBZ Duramax, including the Chevrolet Kodiak, GMC TopKick, GMC Sierra, and the. Chevrolet Silverado, which has ...The first Duramax diesel engines were used in '01-model year heavy-duty pickup trucks. The turbo-diesel V-8s displaced 6.6 liters and produced 300 horsepower and 520 pound-feet of torque.Nov 30, 2023 ... ... Diesel Customs•8.2K views · 17:18 · Go to channel · What Is The Worst Year Duramax Ever Made? EXPLAINED! Truck Master•459K views · ...The U.S. Small Business Administration (SBA) honors four Resource Partners of the Year for their impact on local economic growth and assistance to entrepreneurs. The U.S. Small Bus...The 6.6L Duramax V-8 was discontinued for the vans' 2017 model year, and GM promises it will replace the big diesel with a version of the 2.8L Duramax I-4 soon. See All 21 Photos AdvertisementSaids they get better every year. Seems to have problems with his 2016 though, brake controller replaced and now steering rack @ 50,000 miles. 2010 Gmc 2500 Duramax 853,500 Odometer miles - sold Nov 2018. 2013 LT CCSB SRW bought with 508,000 miles, now over 703,000 miles.36 posts · Joined 2010. #4 · Jul 11, 2017. I currently have 9K miles on my L5P. I drive 70miles round trip to work, non-highway, with hills through towns. I had set the trip odometer the day I bought it and it's averaging almost 17, including some mild camper towing. Tank to tank I'm seeing better than 18 with regens.Piper One. 3756 posts · Joined 2021. #2 · Nov 21, 2023. 01 to 05, Allison 5 speed. 06 to 19 Allison 6 speed. These are 1000 series Allison designs. The 6 speed had a double overdrive (6th gear was .61). Stock power and proper fluid and they live well. 2020 up, Allison branded 10 speed.DMAX Ltd. Turns Out Number 2 Million. At the time of its release for ’17 model year Chevy Silverado and GMC Sierra HDs, the L5P Duramax belted out a class-leading 445hp, along with an impressive 910 lb-ft of torque at just 1,600 rpm. As a result, an unladen ¾-ton crew cab 4x4 could sprint from 0 to 60 mph in just over six seconds—not …How much does a Cateye Duramax cost? You will have to pay around $10000 for Silverado 1500, and it can go up to $15000 if you prefer later model years and higher trims. The price might rise well above $25,000 if you have your heart set on the diesel model. Bottom line. Cateye Duramax is one of the Silverado models with huge demand.The good news is that if you’re searching in that model year range of 2006-2011, the only time you’ll run into a vehicle with a CP4.2 would specifically be a 2011 Chevrolet/GMC Duramax or 2011 Powerstroke, as that was the first year of the LML and 6.7 Powerstroke engines. The VIN number can always be found on your vehicle's title or registration card. It is important to know which engine you have because not all components are interchangeable between the various versions of Duramax engines. Duramax VIN Chart. Model Year(s) 8th Digit of VIN Code Duramax Models & Notes 2001 - 20041 2 • LB7 • LLY (introduced ... Duramax started using the DEF in 2011. Stricter emission regulations require improvements to different systems of a car. With the popularization of biodiesel, the fuel in diesel engines became cleaner. The DEF is one of the most successful ways to reduce NOx emissions. The reduction can go up to 90%.Besides the V8, as of 2019, GM offers an inline six Duramax for the Silverado 1500 and other models. A Duramax engine lasts 250,000 miles or around 20 years on average, but with good maintenance, it can do over 400,000 miles easily. The best years for Duramax are 2006-2007 “LBZ,” and the latest, post 2017 “L5P”.The best years for the duramax were 2011-2016 while the worst years were 2001-2004. During this time, the duramax was plagued with injector and fuel system issues. The duramax engine is a popular choice among truck owners due to its power and reliability. However, not all years of production can be deemed equal.Personally, as of now, the LML years (11-16) are the only ones that I would try to avoid unless the CP4 was replaced with a CP3. The L5P’s seem to be pretty solid. If I ever update from my LBZ I will be looking to jump into a K2 platform L5P most likely. 2006 Silverado 2500 4x4. LBZ.A little over 3 years after the initial concept, the LB7 Duramax diesel went into production. The resulting engine was a state-of-the-art 6.6L V8 with four-valves-per-cylinder. The LB7 put out a segment-best 300 hp and 520 lb-ft of torque. The LB7 Duramax was considered revolutionary at the time and utilized a turbocharger, intercooler, and ...While the LML Duramax is a reliable engine overall, there are a few years that have been known to have more problems than others. In this section, we’ll take a closer look at the 2011 and 2012 models and the issues that have been reported. 2011. The 2011 LML Duramax is one year that some owners have had issues with.The 6.6-liter Duramax LBZ was a short-lived engine only available for two model years. To meet increasingly strict emissions standards, the LBZ was a more aggressively tuned version of the …2006-2007 LBZ has the problems from previous generations fixed, and now the weak link is pistons. These also have 6 speed transmissions instead of the 5 speeds. 2007.5-2010 LMM has the DPF system but is otherwise the same as the 2006-2007 LBZ. 2011-2016 LML has DPF and DEF. Changed the injection pump from a CP3 to a CP4.Whatever its year or generation, every Duramax is a 6.6L V8 unit. Unlike Cummins or Ford, who altered key engine features such as displacement, cylinder head design or fuel injection throughout the years, GM has retained the same general layout from the beginning. The LB7 was the first Duramax engine, first introduced in year 2001.Reaction score. 1,930. Location. Rocky View County, AB. Nov 25, 2015. #3. 01-02 = Early LB7 - These are the first generation of Duramax. They have known poor injectors which fail once or twice throughout the life of the engine. They sometimes blow head gaskets to combustion but its not a huge issue.This 2005 Silverado HD looks plenty sharp. In total, there are still around 1 million GMT-800 trucks still in service. Introduced in 2001 on GM HD trucks, a Duramax FICM easily functioned for 10-15 years without fail. Now twenty-plus years old, it's common for the FICM in 2001-2005 Duramax-powered GM trucks to retire unexpectedly.GMC Sierra 3500HD. With a few periodic dips in fuel efficiency through the years, the GMC Sierra 3500HD has stayed steady with a fuel economy right around 13.5 miles per gallon. With the 3500HD having a slightly larger body than the 2500HD, it’s not surprising that the fuel economy takes a bit of a hit.Here are seven business resolutions you can make and keep in 2022 that will help you build a solid and successful company. What are your business goals for the new year? If I’ve le...Fuel System Problems. Your Duramax relies on a clean and unobstructed fuel supply. Issues with the fuel filter, fuel line, or fuel injectors can cause reduced engine power. A faulty injector can disrupt the fuel mixture, and clogged fuel filters restrict fuel flow, both potentially leading to limp mode activation for protection.Data from the Federal Reserve says the average 70-year-old has roughly $400,000 in savings. Here's how it compares with their retirement needs. Calculators Helpful Guides Compare R...LBZ Duramax Specifications. Manufactured Years: 2006-2007. Engine Design: 6.6L 90-Degree V8 Turbocharged Diesel. Transmission: 6-Speed Auto Allison 1000 Transmission. ZF650 Manual Transmission. Vin Identification:Best Years Of The Duramax Engines. 1. LB7 (2001-2004) The LB7 was the first Duramax engine introduced in 2001, offering impressive performance with 300 horsepower and 520 lb-ft of torque. As the pioneer in the Duramax family, it brought about a new era of diesel engines for GM trucks.The most reliable year of Duramax is the model produced from 2011 to 2021. These models include the Duramax LGH, Duramax LML, Duramax XLD25, Duramax XLD28, Duramax LWN, Duramax L5P, and …The 2007 model year marked significant changes across the GM truck lineup. With the all-new Chevrolet Silverado and GMC Sierra 1500 (1/2-ton) models already introduced for 2007, the all-new Heavy-Duty version of the GM trucks were released roughly mid-model year (often referred to as a 2007.5).Duramax History, Lesson 3: LBZ. December 10, 2018; Story By Mike McGlothlin; By the time the LBZ came along, the LB7’s injector issues had long been solved and the overheating issues associated with the LLY were a thing of the past. This engine’s beefier block casting, stronger connecting rods, higher pressure common-rail fuel …656 posts · Joined 2012. #9 · Dec 17, 2016. The LP5 is the 1st year that GM is making the motor totally in house vs the previous Izuzu diesel influence. One really positive thing is that the Bosch injection system is gone for 17 and the Denso system is in.140 posts · Joined 2010. #7 · Aug 13, 2010 (Edited) 1978 was the first year in the 1/2 tons and yes they used that converted Olds engine. I bought one in 1979 where it lasted 4 years and the piston pins gave out so I dropped in an Oldsmobile 403 gas pot in it's place. IMO that engine was one of GM's biggest failures...The 2011-2016 Duramax suffers from a high pressure fuel pump issue unique to this year range. Failure of this CP4 pump is usually catastrophic, causing instant contamination of the entire fuel system with metal particulates. Chances are, if you’re looking at this page, you’re well aware of the problem.This 2005 Silverado HD looks plenty sharp. In total, there are still around 1 million GMT-800 trucks still in service. Introduced in 2001 on GM HD trucks, a Duramax FICM easily functioned for 10-15 years without fail. Now twenty-plus years old, it's common for the FICM in 2001-2005 Duramax-powered GM trucks to retire unexpectedly.Focus on the model of engine for a given year as prior to the introduction of the LML engine in 2011 there were changes every year or two to correct a defect for the prior model engine. The LB7 and early LLY engines were prone to injector failure. These engines also greatly benefit from adding a lift pump.Get 50% off a full year's access to our plethora of analysis and in-depth coverage at TechCrunch+! Hello, TechCrunch friends! As the United States marks Independence Day and rests ...Saids they get better every year. Seems to have problems with his 2016 though, brake controller replaced and now steering rack @ 50,000 miles. 2010 Gmc 2500 Duramax 853,500 Odometer miles - sold Nov 2018. 2013 LT CCSB SRW bought with 508,000 miles, now over 703,000 miles.The 2021 and 2022 Colorado model years are great picks and are the most reliable options from the second generation. For 2021 the Colorado received an updated front-end design, a stamped Chevrolet logo across the tailgate, and some minor standard and optional equipment shuffling. It carried over to 2022 unchanged.Today we're going to go on a journey and look at every Duramax engine that GM has built, from the LB7 all the way up to L5P. We're going to look at what make...LB7: 2001 – 2004. As the original Duramax model, the LB7 is still extremely popular with diesel enthusiasts due to its lack of emissions control parts. In general, it’s a very durable and reliable engine. However, as the first models hit the 100,000-mile mark, some issues cropped up. Injector failure was a common problem on the LB7 engines.What year of Duramax did this come out of? (Intank module) UPDATED I'm new to the diesel world and getting a crash course on it. I've picked up fuel tank with the intank fuel module and need to know what year or year ranges it fits in. Any help on this would help me greatly! Thanks in advance.The GM Duramax 3.0L I-6 LM2 is a turbo-diesel engine produced by General Motors for use in various vehicles, primarily full-size half-ton pickup trucks and full-size SUVs. ... 2019 model year ...The 2023 Duramax engines, including the 3.0-liter inline-six, have seen power and torque improvements, making them a great option for those seeking a diesel engine in a light truck or SUV application.It doesn't make much sense that a "light-year" measures distance, but it does. So what does that mean? Advertisement Light-years are a way of measuring distance in space. That does...Jan 23, 2022 · As a result, you have to be careful while buying some Duramax models from the undermentioned years. The following are the years and their problems: LB7 Duramax (2001-04) LB7 Duramax was the first generation of the V8 Duramax engine and it did quite well. It was reliable and gave quite a raw feel like the one that diesel enthusiasts crave from ... Maintenance requirements (oil, filter changes) for a diesel engine are about the same as for gas-powered vehicles. Duramax engines are known for their reliability and come standard with a 5-year/60,000-mile limited warranty on 2.8L Turbo-Diesel engines, or a 5-year/100,000-mile limited warranty on 3.0L and 6.6L Turbo-Diesel engines.Who’s the most important newsmaker of the year? Time magazine says Barack Obama. We disagree. It’s the American corporation. Who’s the most important newsmaker of the year? Time ma...Jan 26, 2022 ... ... :25 Under The Truck 14:29 Ending. 2001-2007 Duramax LB7/LLY/LBZ Buyers Guide. 34K views · 2 years ago ...more. Dirty Diesel Customs. 4.67K.The Duramax 2.8-liter turbodiesel I-4 only makes 181 hp, but its 369 lb-ft of torque gets the little(ish) Chevy truck moving with authority. ... our year with the 2016 Chevrolet Colorado Z71 4x4 ...Performance Roadblocks of the LBZ Duramax. While ’01-’10 Duramax engines share a lot of things in common and experience many of the same hurdles in making horsepower, these power plants are all a tad different in their own ways. The slight differences from year to year (or RPO code to RPO code) stem from GM’s attempt to … The 6.6L L5P Duramax was mated to the tried-and-true Allison 1000 six speed automatic transmission for 2017 to 2019 model years. For 2020, the GM-Allison 10L1000 ten speed automatic transmission became standard; although Allison transmissions was responsible for rigorously testing the transmission, it is a GM design and is assembled at GM's ... General Motors just announced it will debut the second-generation Duramax Diesel engine in 2023 for some Chevy Silverado 1500 and GMC Sierra 1500 pickups. This is the first change for the LM2 (now named LZ0) six-cylinder turbodiesel engine since its 2019 introduction. GM says it has redesigned 25% of the Duramax, …2006-2007 LBZ has the problems from previous generations fixed, and now the weak link is pistons. These also have 6 speed transmissions instead of the 5 speeds. 2007.5-2010 LMM has the DPF system but is otherwise the same as the 2006-2007 LBZ. 2011-2016 LML has DPF and DEF. Changed the injection pump from a CP3 to a CP4.Fifth Generation Sierra 2500HD Production Years: 2024 GMC Sierra 2500HD Review. TRIM ENGINE TRANSMISSION DRIVETRAIN GMTT1XX Pro 6.6L Turbo V8 Diesel 6.6L V8 Gas 10-Speed Automatic ...I’ve compiled many reports from various forums and blogs. According to them, I recommend avoiding the following Duramax year models: 2001 – 2004 Duramax LB7. 2004.5 – 2005 Duramax LLY. 2006 – 2007 Duramax LBZ. 2008 – 2010 Duramax LMM. 2007 – 2012 Duramax LML. These specific engine models have received a lot of complaints.2017-2019 Chevrolet HD and GMC HD trucks with the L5P Duramax have a max tow capacity of 23,300 lbs. In 2020, GM’s engineers overhauled the trucks and increased tow capacity by 52%. 2020 …The CP4 is a high-pressure fuel pump, or injection pump, that debuted in 2011 in the Ford Powerstroke and GM Duramax engines. The CP4 was an updated model to the incredibly reliable and well-regarded CP3 pump. Unfortunately, the CP4 has long been plagued by failures, warranty claims, and expensive repair bills, even leading to a class …Dec 12, 2023 · The best years for the Duramax are 2006 and 2007. These engines are both highly reliable and capable of a fantastic output. The only commonly stated problem with the 2006-2007 Duramax is that the pistons tend to crack when the engine runs higher than 600 horsepower. Newer body style ones have a tone of emissions junk on them. This year is the best IMO. Jason. 2006 Silverado 2500HD LBZ CC SB. Exterior: Escalade Handles, Front windows tinted to match the rear, painted bumpers & mirrors, billet grille, 305/50/20 Cooper Zeons on BMF Novakanes Death Metal, Cognito Braces, Stainless Sleeves, …Best Duramax Years . The Duramax engine is a diesel engine produced by General Motors. It was first introduced in the 2001 model year and has been used in a variety of GMC and Chevrolet trucks and SUVs since then. The Duramax is known for its high torque output and fuel efficiency, as well as its reliability. So, what are the best Duramax years?If you are buying a used Duramax engine, you should know how long an LBZ Duramax lasts. That way you can choose the right engine for you. If handled and maintained properly, the LBZ can easily last over 300,000 miles without major repairs. If you fell in love with the truck and the engine, you can keep it alive for much longer.1 post · Joined 2020. #1 · Oct 11, 2020. I am looking to buy a used 2500 Duramax to haul a 3 horse gooseneck trailer. The truck will also be my daily driver. What are the best …Data from the Federal Reserve says the average 70-year-old has roughly $400,000 in savings. Here's how it compares with their retirement needs. Calculators Helpful Guides Compare R...Aug 10, 2023 ... While it is not right for everyone, the math does not lie. In some situations, driving a new truck every year is cheaper than keeping one ...November 20, 2023 by Alex Jones. Duramax started using def in their diesel engines in 2011 for compliance with federal emissions regulations. Duramax implemented def to reduce nox emissions and meet stricter epa guidelines on diesel exhaust fluid emissions. Diesel engines are popular due to their long-lasting performance and fuel efficiency.Duramax Diesel engine RPO codes include: LB7. VIN Digit: 1. Applications: 2001-Early 2004 Chevy Silverado and GMC Sierra, 2001-2005 Chevy Kodiak and GMC TopKick. Details: First version of the Duramax diesel. Known for fuel injectors leaking into the oil supply; see TSB #04039B.The Duramax engine has been one of the most popular diesel engines in the US for over two decades. Duramax is a heavy-duty V8 diesel engine co-developed by GM and Isuzu. It was introduced in 2001 as the upgrade for the 6.2L and 6.5L Detroit engines. It turned out to be a competent and powerful competitor in the light diesel market. The engine has undergone various improvements over the years ...The Duramax engine has had its fair share of ups and downs over the years. While it is difficult to pinpoint a single “best” year for the Duramax engine, there are certainly standout models that have proven to be reliable and powerful. The early years of the Duramax engine, particularly from 2001 to 2004, are often regarded as some of the …Whether you’re after horsepower and torque, fuel economy, ride comfort or reliability, the Duramax-equipped rigs coming out of Detroit over the past decade and a half are tough to beat. What Others Are …Apr 22, 2009 · Newer body style ones have a tone of emissions junk on them. This year is the best IMO. Jason. 2006 Silverado 2500HD LBZ CC SB. Exterior: Escalade Handles, Front windows tinted to match the rear, painted bumpers & mirrors, billet grille, 305/50/20 Cooper Zeons on BMF Novakanes Death Metal, Cognito Braces, Stainless Sleeves, Train Horns. 6.6L Duramax Diesel Timeline. The Duramax diesel was introduced in 2001 at 300 horsepower and 520 lb-ft of torque and has since evolved to produce 445 horsepower and 910 lb-ft of torque. While certain generations of the Duramax represent little more than more aggressive engine calibrations, others can nearly be classified as clean-slate designs ...Written By: L.T. Tolman. We’re in the middle of a three-part journey which takes a deep dive into the most popular late model diesel powerplants used in pickup trucks, and todays subject will be the various …

In terms of specs, the big changes are the peak power and torque figures, with the new 3.0L I6 LZ0 turbodiesel Duramax engine producing a maximum of 305 horsepower at 3,750 rpm and 495 pound-feet .... Ww egg roll in a bowl

years of duramax

The Duramax L5P was launched in 2017 and made an appearance in models like the 2017 GMC Sierra HD and the 2017 Chevrolet Silverado HD. Producing 445 hp and 910 lb-ft of torque, this was one of GM ... Saving flower seeds is an easy and economical way to expand your garden. Read on to find out how to collect and save flower seeds to grow in next year's garden. Expert Advice On Im...Ten years ago, nobody knew what a 6.6L Duramax engine was. We couldn't tell how they worked, how long they would last, or the power output they'd be capable of making. Ten years, and more than 1.3 ...Your mileage may vary, but so far the 3.0L Duramax hasn’t quite lived up to the 33-mpg hype. We’ve seen trucks come close in 99-percent, steady-state highway cruising, but most hand-calculated fuel economy numbers for 4x2 model Silverados range from 27-mpg to 31-mpg.The 6.6-liter Duramax LBZ was a short-lived engine only available for two model years. To meet increasingly strict emissions standards, the LBZ was a more aggressively tuned version of the …Here are the years of Duramax engines to avoid: 2001 to 2004 LB7. 2004 to 2005 LLY. 2006 to 2007 LBZ. 2007 to 2012 LMM. 2007 to 2016 LML. These engines are prone to numerous problems, including issues with the fuel lift pump, water pump, fuel injector, piston, and fuel pressure lift pump. Read on to learn more about the Duramax years to …Environmental Pollution Agency has made DEF or diesel fluid exhaust compulsory since 2010 in all diesel trucks. Duramax began to use the DEF system in 2011 to till now. Before then, Duramax didn’t use DEF technology in their diesel trucks. DEF reduces 90% NOx from the exhaust system and increases a diesel truck’s fuel efficiency and horsepower.The new year can be a meaningful time to implement a momentous change. But not everything needs to be a total overhaul—small, simple changes can have surprisingly powerful effects....The L5P Duramax engine stands as a pinnacle of diesel engineering, offering robust performance and efficiency. However, for enthusiasts seeking even greater power and enhanced efficiency, tuning and delete kits present an appealing option. This article delves into the world of L5P Duramax tuning and delete kits, exploring the benefits, …The Duramax LLY engine lasts for around 200000 miles or 321869 kilometers without needing any major maintenance or repairs. It has a 95% GM user rating. It means 95% of Duramax LLY engines last over 200000 miles without any major issues. However, the lifespan of an LLY Duramax depends on the maintenance of the engine as well as the …To build this powerful workhorse, GM partnered with Japanese auto manufacturer Isuzu, and the result was the legendary Duramax V8, which has retained its basic architecture for more than 20 years now.6.6L LBZ Performance & Tuning Potential. In addition to coming out of the factory with more power than the 6.0L Powerstroke and the 5.9L Cummins, the 6.6L LBZ Duramax was one of the most tuneable as well. While the pistons are a concerning issue on these engines, you shouldn’t run into any issues until you’re trying to push serious power..

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