Mar 19, 2019 · LB7 Duramax 2001-2004. In 2001, GM teamed up with Isuzu and brought another innovation to the diesel crowd and was first to market with a common-rail direct-injected diesel engine, the LB7. Like every Duramax that followed, it featured 6.6 liters (or 402 cubic inches) of displacement, a cast-iron block with aluminum heads, four valves per ... 18515 posts · Joined 2005. #9 · Feb 7, 2006. Mine was made in late Febuary of 2005. None of the 2005's had the PTO gear and only a few of the early early 2004 LLY's had it. I swapped in an LB7 C1/C2 clutch drum assy with the PTO gear on it when I did my Suncoast install.Duramax LB7: 2001-2004 model years As the first Duramax model to be released, the LB7 is still very popular among diesel enthusiasts due to its lack of emission control parts. Generally, it is a very reliable and durable engine; however, once the first model hit the 100,000-mile mark, some issues begin unveiling themselves.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 …Dec 10, 2018 · 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 system and ... GM 6.6L LB7 V-8 Duramax Turbo Diesel Engine Vehicle Applications; Year Make Model Transmission Power (hp / kW) @ RPM Torque (lb-ft / Nm) @ RPM; 2001-2003 If you’re an Apple Music user, you might have felt a bit left out a few weeks ago when people started sharing their ‘Wrapped’ year in review from Spotify. Now a new app can help ma...Here is a list of the best Duramax year models: 2010-2017 Duramax LGH. 2017-2021 Duramax L5P. 2019-021 Duramax LM2. 2014-2021 Duramax LWN. And here are the Duramax year models to avoid: 2001-2004 Duramax LB7. 2004-2005 Duramax LLY: 2006-2007 Duramax LBZ.The 2007 LBZ also has the same issues as the 2006 LBZ. In my opinion, and yes I know, opinions are like assholes. Everyone has one and they all stink. If you want a Duramax the 2006-2007 classic is the time that you want to be looking. There is no injector or very little injector harness problem unlike the older LLY.Year Make Model: 2003 Chevrolet / GMC 6.6L Duramax Year Make Model: 2002 Chevrolet / GMC 6.6L Duramax Year Make Model: 2001 Chevrolet / GMC 6.6L Duramax Part Type: High Flow Intake Bundle Kits Availability Remarks: Ships …20. 18. Feb 5, 2021. #1. Thinking about long-term plans for my truck (2003 CCSB 4x4 LB7). Let's say the goal is 600 rwhp (or enough to run 7.99 in full street trim in a 7000 pound truck) and to be as reliable as possible in a ~450-500 rwhp daily driver tune. I'm defining "as reliable as possible" as the closest to brand-new GM longevity as ...Years later, he has a 1,000-horsepower LB7 Duramax to show off! By Evan Laux. Published: Feb 1, 2023. One of the biggest milestones for someone with a performance diesel truck is hitting the 1,000-horsepower mark for the first time. Four digits is a huge milestone, and one that many builders are inclined to rush to straight out of the gate.engine and tranny wise all lb7, lly, lbz, lmm's are probably the most reliable vehicles gm makes our shop has only seen one or two allys come in with actuall issues. and the duramax besides the lb7 injectors and the occasionall cp3 pump are bullet proof. 2002 Crewcab short box 3/4 tonHD lb7 W/Allison stock, ATS DIESEL E-POWER …Apr 3, 2024 · The LBZ is great in stock form, but get horsepower numbers above 600, and it needs some upgrades to survive. LMM: 2007.5 Through 2010. The LMM engine ushered in the emissions era of Duramax. Although the LMM is almost the same as the LBZ, which makes it a very good engine, it features several new emissions control devices. 2000 – GM debuts the LB7 Duramax diesel engine with 300 hp and 520 lb-ft torque in ’01 ¾- and 1-ton trucks.Duramax LB7 Reliability. The LB7 is a great engine, when it is stock. The block and internals are plenty capable of lasting 350,000+ miles. ... I’ve done that about 4 times in the last year and a half. Mechanics have done pressure test done twice to try and find the leak, but tests fine. Reply. Harold Lovesee says: January 10, 2021 at 9:47 am.I own a 2002 HD 4x4 Silverado crew cab Duramax. It's now time to do some work to it after 14 yrs. of relatively pain free driving/towing. Bought new in San Diego Nov. 2001. Atm - 119,800 miles. Warranty injector replacement at 35k miles. Symptoms: 1. About a year ago started to set a check engine light (P1093)Low fuel rail pressure) while towing.The first generation Duramax, the 6.6L LB7 engine, produced 235 horsepower and 500 lb-ft of torque. Over the years, these numbers have increased dramatically. In the latest iteration, the 6.6L Duramax offers 445 horsepower and 910 lb-ft of torque, which highlights the continuous improvement in power and performance.June 3rd, 2019. 6.6L LB7 Duramax Specifications And Information. 2001 was a huge year for GM lovers across the United States. Not only was 2001 the start of the Duramax engine, but also the famous Allison 1000 Transmission. This first Duramax engine mated with GM trucks was coined the LB7 Duramax.Quick spool up. Big power. Great daily driver. Models available for 2001-2016 Duramax (LB7, VVT, LML) Stealth 67G2: Our test truck, the well known Apachemax, is a 1958 Chevrolet Apache modified onto a 2003 Silverado 2500HD frame. We dropped a built LB7 engine with 100% Exergy Injectors, 12mm Exergy Cp3, and all the supporting mods to …Chevrolet Silverado, which has consistently been designed with reliable engines. . The LB7 Duramax engine is a turbocharged, intercooled V8 that produces 300 hp and 560 lb-ft of torque. The engine ...May 27, 2022 · The first engine was installed in 2001 in Chevrolet and GMC trucks. 23 years after the project was first conceived millions of vehicles now have the engine installed. A Brief History of the DURAMAX Diesel Engine 2001-2003 LB7. The first DURAMAX diesel engine, code LB7 debuted in 2000 For the 2001 model year. The safest Duramax model years you can buy are the models produced from 2011 to 2021. These include the Duramax LGH, Duramax LML, Duramax XLD25, Duramax XLD28, Duramax LWN, Duramax L5P, and Duramax LM2. These engines go a step further to provide better emissions thanks to a diesel exhaust fluid/urea injection feature.Description. 2001-2010 LB7/LLY/LBZ/LMM Duramax Heavy Duty Engine Mounts developed and tested for use on high horsepower application to reduce engine flex in the chassis and broken OEM engine mounts. These high performance Duramax motor mounts have been designed to maintain the alignment features of OEM mounts while adding significant …RPO Regular Production Option Codes (Engine Series) There have been seven Duramax turbodiesel engines since their introduction at the turn of the new millennium: LB7 – 2001 to 2004, 300 horsepower, 520 pound-feet. LLY – 2004 to 2005, 310 horsepower, 520 pound-feet. LBZ – 2006 to 2007, 250 to 310 horsepower, 460 to 605 …GM’s 6.6L LB7 did, however, experience considerable issues with premature fuel injector failure. Luckily, the manufacturer remedied such shortfalls with the release of an updated injector in the years that followed. Subsequently, GM also extended warranty coverage of these updated injectors to appease consumers. Duramax LB7 Specs. …Because multiple versions of the Duramax were available in some years, knowing the engine code of your Chevy Silverado or GMC Sierra will make it much easier to ensure you get the correct parts the first time. ... LB7. VIN Digit: 1. Applications: 2001-Early 2004 Chevy Silverado and GMC Sierra, 2001-2005 Chevy Kodiak and GMC TopKick. …In this guide, we outline the best Duramax model years so you can ensure you have a reliable truck. We also list the worst Duramax model years, giving you …Jul 16, 2023 ... Comments12 · 5 Ways to Bulletproof your LB7 Duramax · 2004 LB7 Duramax 3500 Dually Sat For Four Years!!! Will It Run?!?! · 600 Hp LB7 Duramax ...2000 – GM debuts the LB7 Duramax diesel engine with 300 hp and 520 lb-ft torque in ’01 ¾- and 1-ton trucks.Companies, investors and others with an interest in a company often compare financial information from the same accounting period in two consecutive years to identify changes. This...The We Company (WE), formerly called WeWork, is going public—and we’ve got lots of questions. The initial public offering filing of WeWork is the most audacious prospectus that we’...Lbz engines are prone for broken cranks even at stock power. They have similar injector issues to the lb7, they just cost twice as much. Over returning fuel rates mainly. A built trans, fass and efi live will push you to 530 rwhp. I ran my stock turbo in a compound setup for 60k miles without issue.The joint venture (and resulting engine) was known as Duramax, and the LB7 was the first of many models to come. It’s a 6.6-liter, common-rail injected, 32-valve, V8 turbodiesel which put out 235hp and 500 pounds of torque in its first year, and for the final year of ‘04 the LB7’s output had grown to 300hp and 520 pounds of torque.Having trouble with my LB7 and am already half the trucks cost deep in parts. Low boost. Had massive holde in the intercooler. Replaced intercooler still no boost. Pressurized charge system held 20psi for 30 seconds no leaks. Rebuilt turbo with cartridge. New turbo gaskets. Still no boost.T. truckman148 Discussion starter. 2 posts · Joined 2012. #1 · Mar 8, 2012. i am in the market for a 2004 chevy duramax for my son for a first truck. I have heard that the 2002-03's have had some issuse with injectors and other things. I am wanting to get him a dependable truck and when i purchase the truck it will have between 90k-130k miles.Good block and rotating assembly. Injectors are the only weak part really. The fixed geometry turbo has a bit more lag than the new VVT's but still works well. The LB7's has some of the more advanced and more available things due to the fact that they have been out the longest. Good luck with the buy.These stainless DHD retainers are direct OE Replacements for LB7 Trucks 2001-2004. This is the perfect alternative to outrageous OE replacement prices. DHD's exclusive kit includes 8 304SS line retainers and 8 stainless M5 bolts. Replaces GM #'s 97250489 & 97237113.Nov 5, 2020 ... The LB7 Duramax engine made its debut on Chevrolet and GMC HD trucks in 2001. These diesel engines are where the Duramax started, ...WCFab 2001-2004 GM LB7 6.6L Duramax 4" Stage 2 Intake Kit with Air Box. This high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on your diesel for improved engine performance. All new design significantly increases air flow to your turbo producing improved ...Aug 3, 2007 · The LB7 Duramax diesel is a direct-injected, turbocharged, intercooled, four-valve-per-cylinder V-8 that produces 300 hp and 560 lb-ft of torque. Starting from a blank sheet of paper, the 6.6L ... What Years Were the LB7 Duramax? The LB7 Duramax can be found in the 2001-2004 Chevrolet Silverado HD and GMC Sierra HD. It was also used in the Chevrolet Kodiak and GMC Topkick, which were medium-duty trucks produced until 2009. The LB7 was introduced in 2001 and used until early 2004 before it was replaced with the LLY Duramax. What Year of ...Feb 1, 2023 · Duramax LB7: 2001-2004 model years As the first Duramax model to be released, the LB7 is still very popular among diesel enthusiasts due to its lack of emission control parts. Generally, it is a very reliable and durable engine; however, once the first model hit the 100,000-mile mark, some issues begin unveiling themselves. GM 6.6L LB7 V-8 Duramax Turbo Diesel Engine Vehicle Applications; Year Make Model Transmission Power (hp / kW) @ RPM Torque (lb-ft / Nm) @ RPM; 2001-2003 Have a customer's stock LB7 (2001 CCLB 4x4) Problem started about 2 days after a FRP sensor was replaced due to it leaking. The truck will run good for about 5 minutes before the idle will start surging. It sounds similar to a lope but much faster. No issues as far as driving. I was told by a Duramax specialty shop that the lift pump on the …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:The LB7 Duramax diesel is a direct-injected, turbocharged, intercooled, four-valve-per-cylinder V-8 that produces 300 hp and 560 lb-ft of torque. Starting from a blank sheet of paper, the 6.6L...Mar 19, 2024 · The safest Duramax model years you can buy are the models produced from 2011 to 2021. These include the Duramax LGH, Duramax LML, Duramax XLD25, Duramax XLD28, Duramax LWN, Duramax L5P, and Duramax LM2. These engines go a step further to provide better emissions thanks to a diesel exhaust fluid/urea injection feature. The Duramax LB7 is a 6.6L V-8 with four valves per cylinder, a cast-iron engine block with aluminum heads, and high-pressure common-rail injection. It produced …GM issued a warranty for this and currently injectors and warrantied for 7 years/200,000 miles. Out of all the Duramaxes the Lb7 is considered to attain the best fuel mileage, helped in part to not having any emissions requirements. The Duramax was on the Ward's 10 Best Engines list in 2001 and 2002. The following trucks use the LB7:Midway through the 2004 model year, GM released the second-generation Duramax, RPO code LLY. ... Of the first five generations of the Duramax (LB7, LLY, LBZ, LMM and LML), the LB7/LLY rod is the second lightest ever used. At 1,155 grams apiece, only the rods used in the LML (’11-‘16) were lighter. However, just like the LB7, the rods …Nov 24, 2020 · The Evolution CTS3 is an all-in-one LB7 Duramax tuner and monitoring solution. It offers tuning for improved performance with gains of up to 100 horsepower and 210 lb-ft or torque. It also has the built in monitoring capabilities of the Edge CTS3 insight. 2. Duramax LB7 Cold Air Intake Benefits +5–15 horsepower +10–20 lb-ft of torque; Increased fuel economy; ... Banks Power have produced some very popular and powerful Duramax parts over the years, including for the LB7, and they are very respected within the community. It might sound a little surprising to be picking a ram air instead of …Quick spool up. Big power. Great daily driver. Models available for 2001-2016 Duramax (LB7, VVT, LML) Stealth 67G2: Our test truck, the well known Apachemax, is a 1958 Chevrolet Apache modified onto a 2003 Silverado 2500HD frame. We dropped a built LB7 engine with 100% Exergy Injectors, 12mm Exergy Cp3, and all the supporting mods to …After building a compound turbo LB7 Duramax to the tune of more than 1,200 HP, Dark Horse Diesel owner Mike Maas was hungry for more. He decided to build up another LB7 Duramax with an LML block and is now seeing the potential to hit 2,000 HP. ... For the last couple years of the PRI Show, Frankenstein Engine Dynamics has had an …These stainless DHD retainers are direct OE Replacements for LB7 Trucks 2001-2004. This is the perfect alternative to outrageous OE replacement prices. DHD's exclusive kit includes 8 304SS line retainers and 8 stainless M5 bolts. Replaces GM #'s 97250489 & 97237113.With this system, you can increase your vehicle’s fuel economy by adjusting the exhaust after treatments. The best Duramax diesel engine year models that are safe to buy include: 2010 – 2017 Duramax LGH. 2011 – 2016 …The first DURAMAX diesel engine, code LB7 debuted in 2000 For the 2001 model year. This 1st generation LB7 Duramax cranked out 300 hp and 520 lb-ft of torque, and was. available in 3/4 and 1-ton trucks. The 6.6-liter V8 turbodiesel engine featured aluminum heads with 32 valves on a cast iron block. It had high pressure, a common rail, …Nemo. The LB7 (engine code "1") the fastest of the Duramaxs was the first introduced in 2001 and continued until 2004. The V8 engine is a 6.6 L (≈403 cu in) and it has 310 hp (261 kW) and 520 lb•ft (705 N•m) of torque. It is a 32-valve design with high-pressure common-rail direct injection and aluminum cylinder heads.