Lb7 duramax years

Duramax Horsepower & Torque Figures by Model Year. Model Year (s) Horsepower. Torque. RPO Code. 2001 - 2002. 300 hp @ 3,100 rpm. 520 lb-ft @ 1,800 rpm. LB7.

China is churning out renewables like no one can compete. China, the world’s largest emitter of greenhouse gases, is determined to rebalance its energy mix, and incorporate more cl...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 …It’s been 10 years since GM stopped producing the LB7 Duramax, but thanks to their longevity, efficiency and performance potential, the 2001-2004 GM trucks are still some of the most sought after light duty diesels on the road today. It may be getting hard to come across super clean low mileage LB7 trucks, but even at higher mileage …03’Duramax LB7 limp mode. New injectors last year. It’s been running great. Then limp mode. Check engine light, loss of fuel gauge. P2146 p0201 p0203 p0206 p0207 codes. Checked every wire and harness under the hood. Checked grounds. Pulled valve covers and rechecked injectors and wiring.Year: Description: 6.6L Duramax LB7: 8: 2001 to 2004: Duramax Engines - 6.6L Duramax Diesel Engine LB7 (2001 to 2004) 6.6L Duramax LBZ: 8: 2006 to 2007: Duramax Engines - 6.6L Duramax Diesel Engine LBZ (2006 to 2007) 6.6L Duramax LMM: 8: 2007 to 2010: Duramax Engines - 6.6L Duramax Diesel Engine LMM (2007 to 2010)

💪 WATCH THIS before buying A Used 01-04 Duramax LB7!!! Wade goes over what he looks for when buying a used Chevy/GM Duramax LB7 for the 2001-2004 truck year...RPO LB7 (engine code "1") was first introduced in 2001 and continued until early 2004. It is a 32-valve design with high-pressure common-rail direct injection and an experimental …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.Jul 10, 2021 ... Had one, fixed it, loved it, sold it. $4000 every 100,000 miles is not my idea of a good diesel. LB7 is 01-02 years, maybe others.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. 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 Dec 12, 2023 · Let’s take a look at the highlights of other powerplants within the Duramax family that are reliable. LB7 2001-2003. This engine is getting to be pretty old now, but it is still powerful and reliable. So, it’s a good candidate for what are the best years for the Duramax. Because of its age, it’s probably the cheapest Duramax engine around.

Play Truck - 2002 LB7 2500HD Crew Cab Short Bed ... id assume they would since thes basically the same block every year but am not sure. 2015 Chevy Silverado 2500 HD 6.6L LML. ... A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, …03’Duramax LB7 limp mode. New injectors last year. It’s been running great. Then limp mode. Check engine light, loss of fuel gauge. P2146 p0201 p0203 p0206 p0207 codes. Checked every wire and harness under the hood. Checked grounds. Pulled valve covers and rechecked injectors and wiring.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 …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.7. 38. Southern Indiana. Sep 1, 2014. #16. 01-10 will physically go in an any year block. Balancer and flywheel have to be correct for that crank. Lb7 and LLY share the same balancer and flywheel, LBZ and LMM share the same balancer and flywheel. Than of course the reluctor wheel had to be correct.

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Found some for a 2003 LB7 to 2004.5-2005 LLY and LB7 to 2006-2007 LBZ. I think the key is that the 2006 LLY was mated to a 6 speed, unlike the 2004.5 and 2005 models. An 06 "LLY" is mechanically an LBZ... so forget the LLY part altogether. You're attempting to swap an LBZ into an LB7 truck.Duramax Horsepower & Torque Figures by Model Year. Model Year (s) Horsepower. Torque. RPO Code. 2001 - 2002. 300 hp @ 3,100 rpm. 520 lb-ft @ 1,800 rpm. LB7.2017-2019 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 Chevrolet HD and GMC HD trucks with L5P Duramax engines have a max tow capacity of 35,500 lbs. Then, in 2021, slight revisions improved max tow capacity a ...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 …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 …Jun 13, 2023 ... ... year-old truck in 2023. this information is only good for the 2002-2004 GM diesel trucks. lb7 Duramax. fuel filters lb7 Duramax dirtymax.

Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain 01-04 lb7 difference. Jump ... GM issued a warranty for this after the fact for injectors, which now have 7 year/200,000 mile coverage. The Duramax was on the Ward's 10 Best Engines list in 2001 and 2002. Specifications. Engine type: 6,599 cc (402.7 cu in) …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.Sep 1, 2014 · 7. 38. Southern Indiana. Sep 1, 2014. #16. 01-10 will physically go in an any year block. Balancer and flywheel have to be correct for that crank. Lb7 and LLY share the same balancer and flywheel, LBZ and LMM share the same balancer and flywheel. Than of course the reluctor wheel had to be correct. Nov 27, 2017 ... ... ideas is generated from our listeners. 1,200HP Duramax LB7 - JOY RIDE. 37K views · 6 years ago ...more. Diesel Performance Podcast. 6.94K.LB7 Pros. Made in America; Most horsepower and torque ever offered in a diesel pickup at the time (300hp, 520 lb-ft) Aluminum cylinder heads made for a lighter curb weight and improved performance; One of the lightest rotating assemblies of any generation Duramax; Forged-steel connecting rodsDuramax 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 ...You can get amazing deals on Fire tablets, WiFi mesh systems and more during Amazon's New Year Sale. Check out some of the best deals below: If you buy something through our links,...The L5P Duramax is the latest version of the Duramax V8 diesel engine. (engine code Y). Introduced in the 2017 model year, it was the most powerful diesel engine GM had produced, with 445 hp (332 kW) at 2,800 rpm and 910 lb⋅ft (1,234 N⋅m) at 1,600 rpm. Design specification performance can exceed 550 bhp (410 kW) at 3,050 rpm and 1,050 lb⋅ ...While it's history stretches back to 1982, we are going discuss the more modern years. The 6.6L was introduced in 2001 and replaced the 6.5L and the company hasn't looked back since. 2001 - 2004.5 LB7. 2001 was the year the 6.6L would be unleashed upon the diesel world.

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...

The exhaust system on the Duramax LB7 is one of the most restrictive parts with respect to performance. If you are looking to increase power, especially if you are tuned, an exhaust is one of the best LB7 upgrades.. With power gains ranging from 20-30+whp and 40-60+wtq an upgraded exhaust will provide big power gains, but there are …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...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...While the Duramax engines seem to be mostly reliable these days, the earlier years exhibited a lot of problems. We can’t recommend the 2001-2004 LB7, the 2004-2005 LLY, the 2006-2007 LBZ, the 2007-2012 LMM, or the 2011-2016 LML. Take a look at the most common complaints about these Duramax engines. 1. 2001-2004 Duramax LB7Remanufactured 6.6-Liter LB7 Duramax Engine - Complete Long Block - Built to Factory New Specifications with Updates - Diesel Experts ... Peak Torque:• 500 lb-ft @ 1,600 rpm (2001 model year)• 520 lb-ft @ 1,800 rpm (2004 model year) Related. Warranty. The 6.6-L Duramax Bare Long Block Engines come with a 1 Year Unlimited Mileage Parts ...LB7: The O.G. It doesn’t get any simpler than the original 6.6L: the LB7. With the exception of California models, the first Duramax was effectively free of any of the problematic emissions control devices that would be introduced in the years to come.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:Marketing automation startup Kaviyo is going to be the first major tech IPO later this year if reports are accurate. As the stock market cooled last year, it led to a dearth of sta...The Duramax LLY took over from the LB7 in 2004. It came in the Chevrolet Silverado, Hummer H1 Alpha, and the GMC Sierra until 2005. GM then introduced the …LB7 Pros. Made in America; Most horsepower and torque ever offered in a diesel pickup at the time (300hp, 520 lb-ft) Aluminum cylinder heads made for a lighter curb weight and improved performance; One of the lightest rotating assemblies of any generation Duramax; Forged-steel connecting rods

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We did a thing today, my husband and I. We got our 11-year-old a phone. Our newly minted middle schooler will have an Apple a day, and we're not talking... Edit Your Post Publ... 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 Duramax LML. 2011 – present Duramax XLD25. 2012 – present Duramax XLD28. 2014 – present Duramax LWN. JRooney Discussion starter. 1 post · Joined 2020. #1 · May 16, 2020. Bought lb7 po says injectors rebuilt all 8 prior to me buying it. No smell of fuel in oil and oil looks clean.Cranks starts and dies doesn’t run long 5sec maybe. Primer does not get hard even after priming and purging. Seems to be pumping though no visible leaks smells ...2001-2004 LB7. The LB7 Duramax engine is a turbocharged, intercooled V8 that produces 300 hp and 560 lb-ft of torque. ... Now that we've discussed some of the best years for the Duramax engine ...Dec 22, 2021 ... ... duramax #LB7 #GeneralMotors. Is an LB7 Worth it!? 117K views · 2 years ago #duramax #GeneralMotors #LB7 ...more. Custom Offsets. 708K.This Silverado went through a gradual evolution over the years, from a mild shop truck to a souped-up powerhouse. The earlier build consisted of a stock LB7 bore block with a balanced stock crank, Carrillo connecting rods, MAHLE Motorsports cast de-bowled pistons with valve reliefs and 16.1:1 compression ratio.The alternator (with a ~180 degree belt wrap) sitting 1/4" higher dictates that the tensioner (also with a ~180 degree wrap) must swing about 1/4" further out. With the tensioner arm length at around 3.5", that only comes out to about 4 degrees. With an easy 30+ degrees left in the tensioner, it's a non-issue.This newly formulated Custom Age 625+ super-alloy demonstrates superior fatigue cycle life, tensile strength and toughness – with complete resistance to atmospheric corrosion and oxidation making it best suited to extreme, high horsepower competition builds on LB7/LLY/LBZ/LMM/LML Duramax 6.6L engines manufactured from 2001-2016.The result is a Camaro with an LB7 Duramax fit snuggly under the factory hood, which surprisingly, doesn’t look out of place. In fact, the hefty engine fits the mold just fine. The motor itself is Wagler’s Streetfighter Duramax platform , that comes assembled with a Callies billet crank, MAHLE pistons, narrowed Wagler rods to fit the crank ...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.Lb7 injector issue. Hey guys, new here to this forum and was looking for a little assistance. I have 2004 lb7 duramax with 269k miles, replaced the factory injectors last week with remanufactured Bosch injectors and truck drove and ran amazing until this morning, pulled into work and truck sounded like it had a fuel knock.The factory firing is 1-2-7-8-4-5-6-3, but this new camshaft design changes that to 1-5-6-3-4-2-7-8. Reversing an engine’s firing order isn’t new science, however, as GM gas guys have been doing it for years in with the LS engine 4-7 swap. The Duramax family (LB7, LLY, LBZ, LMM, LML) can suffer from the crankshaft breaking just behind the ... ….

Jul 18, 2012 ... The start was 2002 for the LB7 and 2004.5 for all emissions with the LLY. tileman2003 said: No, I think fed trucks have the smog stuff. 01, and ...Chevrolet diesel trucks use the 6.6 liter Duramax engine, which is prone to intermittent fuel starvation, water pump failure, overheating, injector failure and injector harness cha...77cruiser. 1988 posts · Joined 2011. #6 · Aug 27, 2023. I towed a 11K lb 5th with a LB7 & 90HP PPE excellerater tune for about 5-6000 miles. Then I put SAC 45 injectors with EFI live tunes & towed on the 30hp tune my 14K lb 5th wheel for about 20K miles. It had more power with the 30 hp EFI tune than the PPE 90hp.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 ... 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 …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 …LB7 High Rail Pressure-LOW FPR voltage. So I've been fighting this problem literally for years now, it's time to figure it out! Problem- at idle, rail pressure starts out at commanded pressure (around 6,000 psi), then after 5-6 seconds, starts slowly building pressure, usually leveling off at around 20-22,000 psi.The alternator (with a ~180 degree belt wrap) sitting 1/4" higher dictates that the tensioner (also with a ~180 degree wrap) must swing about 1/4" further out. With the tensioner arm length at around 3.5", that only comes out to about 4 degrees. With an easy 30+ degrees left in the tensioner, it's a non-issue. The name Duramax was chosen for the new engine to signify durability and maximum power, cleanliness, and fuel economy. The new engine created and built by DMAX Ltd was a 6,599 cubic centimeter (6.6 Liter), direct-injection, turbo-charged Diesel V8 with 90-degree placement, aluminum cylinder heads, and 32 overhead valves. 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. Lb7 duramax years, 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 …, Check out the Freedom Series cylinder heads for the LB7 6.6-liter Duramax. This all-new cylinder head features a cupless injector bore. By installing the Freedom series heads, you can actually save time and money with no more injector cups to install, leak, or worry about. Each cylinder head is assembled from a new casting in Fleece’s state ..., 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., Feb 22, 2023 · 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. , It’s been 10 years since GM stopped producing the LB7 Duramax, but thanks to their longevity, efficiency and performance potential, the 2001-2004 GM trucks are still some of the most sought after light duty diesels on the road today. It may be getting hard to come across super clean low mileage LB7 trucks, but even at higher mileage …, Apr 28, 2011 · The only ford diesel worth having is a 7.3 and they lack fuel economy and power. The 6.0 ford could be good if you get it dirt cheap and spend about $10000 in parts to bulletproof everything. Just my opinion and experience. 2001 chevy 2500hd 4x4 ext. Cab long bed lb7. 5" turbo back exhaust into 6" tip. , Found some for a 2003 LB7 to 2004.5-2005 LLY and LB7 to 2006-2007 LBZ. I think the key is that the 2006 LLY was mated to a 6 speed, unlike the 2004.5 and 2005 models. An 06 "LLY" is mechanically an LBZ... so forget the LLY part altogether. You're attempting to swap an LBZ into an LB7 truck., 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 ... , 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., The only ford diesel worth having is a 7.3 and they lack fuel economy and power. The 6.0 ford could be good if you get it dirt cheap and spend about $10000 in parts to bulletproof everything. Just my opinion and experience. 2001 chevy 2500hd 4x4 ext. Cab long bed lb7. 5" turbo back exhaust into 6" tip., Boosted Performance is now LIVE! LB7 Performance Parts: https://boostedperformance.com/duramax-lb7In this video, Jake covers the LB7 Duramax engine. It is a ..., Business of Your Life Financial Planner Alicia Reiss joins Yahoo Finance Live to discuss how one should spend a year-end work bonus, tax implications, and long-term financial goals..., 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..., 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. ..., 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., 2001 – 2004 Duramax LB7: Source: turbodieselregister. The LB7 Duramax was the first generation of the V8 Duramax engine, and it did quite well. It is a 6.6-liter V8 engine with four valves per cylinder. It also has an engine block made of cast iron with aluminum heads. Overall, it was a very powerful and reliable engine., 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 ... , Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain. Follow Forum Create Thread Filters Show: Loading… 1 1 of 469 Go to page. Go. 469. Sticky LB7 Torque Specs. Durallymax; Mar 13, 2010; 2. 26 243K Jan 22, 2023 ..., LB7: The O.G. It doesn’t get any simpler than the original 6.6L: the LB7. With the exception of California models, the first Duramax was effectively free of any of the problematic emissions control devices that would be introduced in the years to come., 7. 38. Southern Indiana. Sep 1, 2014. #16. 01-10 will physically go in an any year block. Balancer and flywheel have to be correct for that crank. Lb7 and LLY share the same balancer and flywheel, LBZ and LMM share the same balancer and flywheel. Than of course the reluctor wheel had to be correct., The LB7 is the original production 6.6L Duramax V8. Following success with the performance and reliability of the LB7, this engine became the building block of the Duramax line all the way up until today. Fuel economy on the LB7 was stout at around 20mpg and the IFS suspension included on the HD’s of … See more, SOLD - 2003 Silverado CCSB LB7, stock (for now), PPE Boost Valve, Hypertech Power Programmer III, GN, 285/75R16E BFG A/T's. With a new oil change the oil PSI would be a steady 60psi but towards the end of the oil change interval (with diesel in the oil) it would be about 45 psi., The studs that come up on the rear engine cover where return line should bolt to are to further apart than my LMM. Went down the road to get an LB7 oil return line and same thing, had them order a different one the next day and the same. Looks to be about an 1/8" to wide., News. Follow our GM Duramax news coverage. Sponsored Links. Complete information, specs, power and torque ratings on the GM Duramax turbo-diesel engines used in GM …, Oct 6, 2019 ... 44K views · 4 years ago ...more. DG's Pro Tech. 11.3K ... What Is The Worst Year Duramax Ever Made? ... REVIEW: Everything Wrong With A 6.6 Duramax ..., LB7 white smoke. One of the best ways to check if injectors are bad is to test the oil for fuel contamination. NAPA should have test kits and lab instructions - or talk to a NAPA Service Center. I ran my LB7 for 138K …, 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, …, 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., LB7 can't get a P2563 or P003A as they're a fixed geometry turbo from the factory with a mechanical wastegate. The stage 1 powermax turbos aren't bad but they also aren't great. The aftermarket really has the drop-ins nailed to where a small 63-64mm drop-in typically spools faster and makes more power than a box stage 1 powermax., 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., Industrial Injection 2001-2004 6.6L LB7 Duramax Premium Stock Plus Long Block Engine The Industrial Injection Premium Stock Plus Duramax Long Block was ..., Make your LB7 fuel system repairs with confindence using OE gaskets and seals from DHD. Replace this seal during LB7 injector service. ... 2003 Chevy/GMC/GM Duramax 6.6 Year Make Model: 2002 Chevy/GMC/GM ..., Description. 2001-2004 LB7 Duramax S400/Stock Compound Turbo Kit. 1000 RWHP capable depending upon turbo and fuel system modifications. Recommended for daily driver work trucks and tow rigs looking for increased horsepower, better fuel mileage, and superior EGT control with stock-like turbo spool characteristics. Recommended Combinations: