Sep 3, 2010 · 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. Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain 2002 Lb7, a good find?? Jump to ... I bought an 03 lb7 cclb about a year ago with 144 on the clock the biggest problem I've had with this truck and most recently was the head gasket passed antifreeze lucky for me noticed it the same day it happened because …What Year Duramax to Avoid . These engines are not bad; they have issues that need to be dealt with. Don’t write off these engines altogether. An average Duramax is an excellent engine. LB7 2001-2004. LB7 Duramax engine that was made between 2001. and 2004. has a problem with the fuel injector failure.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.Nov 14, 2018 ... As of 2018, a total of 7 generations of the Duramax diesel have been produced. The LB7 was first introduced in late 2000 for the 2001 model year ...stock 01-04 will be most fuel efficient but with a few mods youll be able to get just about any year to hit the same mileage, ... General Discussions 01-04.5 LB7 Duramax Powertrain New Member Introductions Exterior Build Threads. Top Contributors this Month View All Nate Dmax 251 Replies. rwood64083 241 Replies. R.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...I saw a new dodge in person recently and it looked like a pretty decent truck, however, there is a good bit of emissions crap on the newer cummins. TEXAS A&M ENGINEERING. SOLD: 2001 2500HD LT CCSB 4X4 LB7. AKA: "******". Tuned by SCRTuning: 431 HP 823 TQ. New Truck: 05' CCSB 2500HD 4X4 LLY Code Name:Lilly.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.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.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 …Description. The ultimate LB7 kit includes everything you need for a successful injector installation, cup and sleeve resealing, bolt replacement, fuel line upgrade, and glow plug replacement. It also comes with a super high-efficiency Cat Fuel Filter. This comprehensive kit is backed by a two-year warranty and contains all the necessary ...ChevyTech77. 6861 posts · Joined 2015. #6 · Aug 12, 2021. I agree, stock LBZ, doesn’t get much better. An LMM is basically an LBZ with a DPF in the exhaust. Other than injector issues, an LB7 would be next on my list. Some people have good luck with LLYs but most seem to be problematic. 2006 Silverado 2500 4x4. LBZ.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 ... 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 ... 6.6L Duramax Diesel Engine LB7. This original Duramax Diesel 6600 V-8 (LB7) was introduced in 2001 and was used through the mid-2004 model year. It offered a unique 32 overhead valve design coupled with high pressure direct fuel injection. The engine design included an experimental composite aluminum cylinder head. The most frequent …Oil cooler replacement was recent, and the cab had to come off for that. So, while the early LB7's had the injector issues, Ford has theirs as well. Not sure why your truck is only worth 6K; in Florida, a good southern diesel truck holds a good value. 2003 2500HD 6.6 duramax (LB7) all stock (no mods) Sierraluva.Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Performance Parts Discussion. What year of Duramax did this come out of? (Intank module) Jump to Latest Follow 3K views 6 ...LB7 Duramax was the first of its kind and it was made to near perfection despite having a few kinks as it was the pioneer. It should be noted that the term “LB7” simply means that the engine was manufactured and established in …Every year, millions of people plunge into a period of feasts and fireworks in celebration of Chinese or Lunar New Year. How did this holiday get its start? Advertisement Every yea...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. 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.83 posts · Joined 2013. #15 · Jan 31, 2013. Yeah my 6.0 had custom tuning. But it looks like merchant automotive has some good stuff for my truck including a pump upgrade kit for the t-case. 2003 Chevy 2500HD Regular cab, 4x4, LB7, Allison, 5in Straight pipe DP back, 6in Black Chrome tip, PPE Boost valve, 6k HID lows 159k Miles SOLD. …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 …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 ...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 …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. Get the best deals on DuraMax Car & Truck Engines when you shop the largest online selection at eBay.com. Free shipping on many items | Browse your favorite ... 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. 6.6L Duramax diesel timeline identifying factory horsepower and torque ratings for 2001 to current applications. Use this chart to identify the factory output ratings for your Duramax … 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. Here is our guide to the 7 most common 6.6L LB7 Duramax problems and how to fix them. 1. LB7 Duramax Injectors. The most notorious LB7 Duramax problem is their original injectors. Even GM …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...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 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....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.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. 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 ...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. When ...884 posts · Joined 2009. #3 · Dec 6, 2009. If the filter change doesn't work, it could be a low fuel rail pressure. I just went through that. When the engine was under load, it would go into limp mode and throw a "fuel leak -large" code. It was my injector pump not supplying enough pressure to the fuel rail.Mar 29, 2017 · 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. 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.Sep 14, 2022 · 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 ... Jan 20, 2019 ... 2002 duramax diesel has been sitting for 3 years the problem before it stopped running was a fuel pump we replaced that - Answered by a ...Diesel52. 158 posts · Joined 2008. #9 · Aug 28, 2013. Fuel additives for LB7. Well I used about 7 bottles of Howes, didn't do a thing!!! Finally tried APL and after about 160ml for 4 or 5 tanks the truck developed power which new injectors under warranty didn't do anything.We analyzed the largest U.S cities and ranked them on four different categories to come up with the list of best cities for keeping New Year's Resolutions. Check out our full ranki...I have injector number 8 that does show a balance rate of -3 to -3.5 yet in drive it goes down to -2 so I think so far I am in good shape. Chevrolet '16 2500HD 4WD LTZ CC D/A LML Deep Ocean Blue, HID lighting, otherwise stock. GMC '04 2500HD SLE CC D/A LB7 SB Summit White, LineX, Nicktane, JK headlight harness, JK fuel pump and harness, Banks ...The exact MPG any engine gets depends on the vehicle it’s used in, but the 6.6-liter Duramax diesel engine gets an EPA-estimated 15 MPGs in city driving and 20 MPGs on highway driv...The lazy person's guide to starting 2022 with a clean slate. Taking stock of your finances at the end of the year is always a smart move, but it can feel overwhelming—which makes i...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 ...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, ...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 ... As the end of the year approaches, you may be coming to the realization that, once again, you did not keep a single resolution past January 9th-ish. Or you can’t even remember what...The LB7 was the first generation Duramax and a great engine that is popular with the hot rod community because it can be tuned to produce as much as 1000HP. In short, the core difference between Duramax LB7 and LBZ is the fact that LB7 has 300 hp and 560 lb-ft of torque with a fuel tank size of 26 Gallons whereas the LBZ …We analyzed the largest U.S cities and ranked them on four different categories to come up with the list of best cities for keeping New Year's Resolutions. Check out our full ranki...Dec 22, 2021 ... ... duramax #LB7 #GeneralMotors. Is an LB7 Worth it!? 117K views · 2 years ago #duramax #GeneralMotors #LB7 ...more. Custom Offsets. 708K.The Instagram that got away. Despite the general consensus that Twitter is a fun place to find news, make news, and otherwise keep up with the world in real time, investors have la...The LBZ Duramax V-8 engine is more powerful than the LB7 and LLY with its 605 lb. ft torque at 1600 rpm and 310 bhp at 3000 rpm. LLY has two variants; one with a power output of 310 bhp at 3000 rpm and another 250 bhp at 3200 rpm. LB7 comes with a power output of 300 bhp at 3200 rpm. LB7 model years range from 2001 to 2004 and LBZ from 2006 to ...Water Pump Failure. Fuel Filter Housing O-ring Leaks. Blown Head Gasket. Overheating (fan clutch problems, radiator gunk) In addition to the above common engine problems, there are also a few worthwhile to mention problems that affect high horsepower LB7’s: Crankshafts + connecting rods break at high hp.8th digit of the VIN is a "1" for LB7 and a "2" for LLY. All the duramax platforms have their quirks. I personally prefer LLY's, they are most notorious for headgasket issues but after 15+ years I'm fairly confident that if there was an issue with the truck, a previous owner would have fixed it. 6.0L Gas engine would probably be cheaper on …The LBZ Duramax V-8 engine is more powerful than the LB7 and LLY with its 605 lb. ft torque at 1600 rpm and 310 bhp at 3000 rpm. LLY has two variants; one with a power output of 310 bhp at 3000 rpm and another 250 bhp at 3200 rpm. LB7 comes with a power output of 300 bhp at 3200 rpm. LB7 model years range from 2001 to 2004 and LBZ from 2006 to ...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 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 ...Mar 30, 2023 ... Comments19 · The LMM Duramax - Reliability & 5 Common Problems · Loudest Duramax 9 Blade Turbo I Could Find! · How to Build a 500WHP Duram... 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. The 6.6L Duramax, running complete engine includes the block, heads, front cover, oil pump & pan, oil filter, oil cooler, damper, water pump, valve covers, Glow plugs, flywheel housing, thermostat, thermostat housing, water outlet, intake manifold, common rail system with injectors, injector drive module, turbo & exhaust manifolds, fuel filter, plus the …Filter fuel better, make sure you always get clean fuel, keep and eye on your balace rates. Great engines, LB7 injectors outflow all other injectors in stock form in terms of lpm and tend to get the best mileage per gallon. LLY is 2004.5 and 2005 some have headgasket issues due to a lacking cooling system.The LBZ Duramax V-8 engine is more powerful than the LB7 and LLY with its 605 lb. ft torque at 1600 rpm and 310 bhp at 3000 rpm. LLY has two variants; one with a power output of 310 bhp at 3000 rpm and another 250 bhp at 3200 rpm. LB7 comes with a power output of 300 bhp at 3200 rpm. LB7 model years range from 2001 to 2004 and LBZ from 2006 to ...Get $30 off the usual price of the Peacock Premium annual subscription. For a limited time, you can get an entire year of Peacock Premium for $20, down from its usual $50 price. Yo... 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 ... 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 ...Mar 7, 2023 · 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. Up by 13% so far this year, the market is having its best start in over two decades. By clicking "TRY IT", I agree to receive newsletters and promotions from Money and its partners...Mar 26, 2021 ... What to Look For When Buying Classic Duramax (LB7 LLY LBZ Buyers Guide). 57K views · 3 years ago ...more ...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.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.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...LB7 Duramax was the first of its kind and it was made to near perfection despite having a few kinks as it was the pioneer. It should be noted that the term “LB7” simply means that the engine was manufactured and established in …Get the best deals on DuraMax Car & Truck Engines when you shop the largest online selection at eBay.com. Free shipping on many items | Browse your favorite ...Dec 28, 2014 · Louisburg, KS for now. Jan 7, 2015. #6. If someone wants to send me one with a rise on it, I'll cut it off and weld it up like it was never there and send it back. That way we'll and I'll know for sure that the LLY-LMM fit on an LML. Just pay for shipping. I'm pretty sure they do being Rick tested all his stuff on the 2011 LML he had, but I'm ...
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 ... . Jack hibbs military service
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.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.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. 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 …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: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 …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...Diesel52. 158 posts · Joined 2008. #9 · Aug 28, 2013. Fuel additives for LB7. Well I used about 7 bottles of Howes, didn't do a thing!!! Finally tried APL and after about 160ml for 4 or 5 tanks the truck developed power which new injectors under warranty didn't do anything.I have injector number 8 that does show a balance rate of -3 to -3.5 yet in drive it goes down to -2 so I think so far I am in good shape. Chevrolet '16 2500HD 4WD LTZ CC D/A LML Deep Ocean Blue, HID lighting, otherwise stock. GMC '04 2500HD SLE CC D/A LB7 SB Summit White, LineX, Nicktane, JK headlight harness, JK fuel pump and harness, Banks ...The four-year project culminated in a pretty unique build that blends aesthetics and horsepower. Stingel even competed with the K15 at the Ultimate Callout Challenge and joined the ranks of some of the fastest Duramax race trucks out there. At the core of the K15’s transformation is the formidable ‘03 LB7 Duramax engine, which is …Sep 14, 2022 · 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 ... 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. 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) …LB7 Duramax Engine Tech - Diesel World. Part 1: Short Block Shortcomings and Fixes. When introduced in 2001, there were plenty of naysayers worried that the 6.6L Duramax diesel would never hold up …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 ... .