Hes written extensively on the subject for major publications and is widely considered an expert on the topic. Can you use a diesel truck as a daily driver? Engine: Cummins B-Series. The pump produces debris to the entire fuel system, and you have to replace the fuel pump and other parts. Different models and different trims within a particular model might tow more or less, depending on their equipment. While the Cummins turbo-diesel engine provides exceptional performance for your daily drive, our team recommends Chevy Silverado 2500HD and 3500HD Duramax diesel engine-equipped pickup trucks. Torque: 1,000 lb-ft @ 1,600 rpm (68RFE automatic transmission, 3500 only) 6.7L Power Stroke engine has everything. the 05.5-6.5 i believe have coolant flow issues and will overheat under a load in all situations. Is Cummins 6.7 Turbo Diesel a good engine? The 6.7L has become a favorite of drag racers, with the high-pressure common rail system and an appetite for handling copious amounts of boost. In 2018, they did not upgrade the 2003 Quad cab, long box, dually 4 x4 Cummins 5.9 HO Auto 48RE B & W flip ball gooseneck hitch, Samrty Junior. Both put out similar horsepower and torque numbers, and both can tow as much as any non-CDL driver would ever need. The reliability and dependability are much better here. In simple termsit depends on what they need their truck to do. Sometimeshigh-pressure fuel pump can make the fuel system failure. To understand the differences between Cummins Vs. PowerStroke Vs. Duramax, we will have to understand the history and features of each engine. Paid the premium price for the diesel for durability. Ford launched its first diesel offering in 1982 in a partnership with International Harvester, which later became Navistar International. Ram 6.7L Cummins vs. Chevy 6.6L Duramax - Courtesy Motors You can expect exceptional V8 power from the Duramax engine, while the Cummins engine is available in two variations: a standard I6 and a high-output I6. Youll still them toiling away, racking up six-figure mileage. Otherturbo-related questions can also happen. Failure of these glow plugs can damage the entire engine but the 6.7l resolve the issue, and you wont face this problem much. The CTD name is arguably more popular, but Ford pickups are more popular than the Rams. If you isolate your purchase to your area, you limit your options. Fords first power stroke diesel engine produces 175 horsepower, and 318 lb.-ft. of torque at that time. Which heavy duty diesel engine is the most reliable: I have an 03 with mild mods my truck gets 20+ mpg on 35's. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 2022 TrackTech Products. You will find these engines in the early years ofChevrolet Colorado, GMC, Chevy Silverado, and other truck models. The 03-04's get good fuel mileage also. The fuel line design is also another problem, and there is no fuel lift pump. But it depends on your comfort and choice, so knowing which is better, you should try them all and then decide. The Cummins 6.7L Turbo Diesel is the most powerful engine option for RAM 2500 and 3500 pickup trucks. The graphite iron blocks and aluminum heads show compactness to the engine. We provide top quality parts for the specific make of your diesel truck. Cummins. Step up to head studs from TrackTech Fasteners, which are engineered and constructed for strip and circuit performance for Ford Power Stroke, Chevy Duramax and Ram Cummins applications. The following 6.7-liter improved on this with 650 pound-feet. This heavy-duty engine has a common-rail Bosch CP3 injection pump, which is different from other engines, 4-valves-per-cylinder is another improvement. Here is some quick data about each platform. The light weight of the robust graphite iron engine block cuts down fuel consumption without affecting power. Within six years, the company offered the first 100,000-mile warranty. Chevrolet started its diesel odyssey with a 5.7L Oldsmobile engine, putting out 120 hp and 220 lb.-ft. Then GM partnered with Detroit Diesel in 1982 to build a 6.2L V8 that put out 130 hp and 240-lb.ft. The energy cannot pass much through the cylinder to the crankcase. If youre looking for torque, this is the engine you want. Bore x stroke: 4.21 x 4.88 inches In the 2007 model year, the 5.9L Cummins converted into 6.7 liters. Compression ratio: 16.2:1 These elements include an electronically controlled variable-geometry turbocharger, a Venturi Jet drain oil separator, and cold-start technology. I am jealous of the duramaxes fuel economy, and interior. Verdict: Its a tie. Over the years, the GM updated the Duramax to improve performance and meet emissions standards. The Duramax is an awesome engine but it just doesn't have the longevity of a Cummins, plain and simple. This simple device can burn out and make theinjector clog up. More Like every engine type, Duramax also has issues that needed to be figured out. You simply can't beat the maximum 35,100 lbs. The engine was first created for farm use, and then it was produced for vehicles like ram trucks, busses, Fiat Chryslers Ram, and Many other truck makers. What Duramax Does Better Than Powerstroke and CumminsPerformance. While Powerstroke and Cummins lead the diesel market with incredible numbers, with Duramax coming in at third place with 445 horsepower and 910 lb-ft, the efficiency of Duramax is Durability. As the name Duramax suggests, these trucks offer maximum durability. Reliability. Re-Sale Value. The replacement PSD was a 6.0-liter, and it offered more power than the previous engine, but it also ran into a number of problems. The EPA doesnt rate heavy-duty diesel pickups for fuel economy, but the smaller CTD and PSD engines are found in light-duty trucks like the aforementioned Ford F-150 for the PSD and the Nissan Titan for the CTD. It almost seems like Ford was just lying in the weeds and waiting for Ram and GM to shoot their best shots, before unleashing 2020 Super Duty and its third-generation 6.7L Power Stroke engine in late 2019. Most diesel enthusiasts seem to agree that the Cummins Turbo Diesel is the better engine in terms of reliability, but the The other two big brands, Ford and General Motors, were using diesel engines in their trucks, but they didnt have turbochargers. The 2018 Chevrolet Silverado HD and GMC Sierra HD Duramax engine make 910 lb-ft. Ford and Navistar parted ways in 2009, and in 2011 Ford debuted the 6.7L Power Stroke Scorpion. If youd like to go old school, check out the 2006-2007 Chevrolet/GMC 2500HD and 3500HD. So, theclogged diesel particulate filter (PDF) happens much quicker. Asking in the mechanical forum because I'm It also covers the majority of popular towing items, such as campers and boats. Plus I was always a Dodge guy. The six-bolts-per-cylinder head design and the low stock cylinder pressure contributed to its long life. Powerstroke engine is another reputed line for power and heavy-duty vehicles. Should you have questions during any point in the research process, contact our Chevy dealership in Boonville, MO, 6.7L high-output Cummins turbo-diesel I6. Block Material: Cast ironTransmission: Ten-speed automatic. However, Duramax has never quite matched the best that Cummins and Power It has a twin turbocharger and a 4-valve-per-cylinder valvetrain. Cummins is still the diesel offering for Ram Trucks, which before 2010 were known as Dodge Ram trucks. The injection parts are sensitive here. Duramax vs. Cummins vs. Power Stroke: Which These two problems were also common in 6.0l. The early 6.0l power stroke engine had too many issues and faults that people tend to dislike it, so when they upgrade it to 6.7l, most of the problems are gone. Which is best Duramax, PowerStroke vs Cummins diesel engines The 6.7-liter engine Although diesels are designed to run thousands of miles, just about every engine type has suffered from a bout of poor reliability. Bought a 2003 Silverado HD2500 with the Duramax LB7/Allison new September 2002. I will be working on the rig myself, and the injector replacement looks like a PAIN in the rear compared to a Cummins 9.5. Displacement: 6.7L (408 ci) 7.3L engine still produces that time, but it stopped in 2004. Seems like us duramax guys are still behind the cummins guys when it comes to big horsepower competition trucks, im speaking from sled pulling experience not dyno numbers or drag racing. Heck I sold my 06 last year for 22k and it had everything you would want the front end was done top to bottom, had a suncoast tranny in it, 70k miles, etc if you look you will find one. Cummins began making diesel engines in Columbus, Indiana, in 1919. Duramax trucks are more reliable than Powerstroke and Cummins because of it. But my dodge will drag my wifes truck up and down the block all day. The current Duramax Diesel engine was designed with unique features to provide more power without compromising fuel economy or longevity. The Power Stroke has more horsepower but slightly less torque, while the Cummins has the opposite. The fittings of the coolant are not that good. The trick is keeping the rpm within the right range to keep it in the peak power band. Chevrolet does this by pairing the Duramax 3.0L Turbo-Diesel with an advanced, smooth-shifting 10-speed automatic transmission, and the Duramax 6.6L Turbo-Diesel with a legendary Allison transmission. Producing up to 400 horsepower and 1,000 pound-feet of clean diesel torque, this powerhouse helps RAM deliver best-in-class towing. The engine can reach high torque, so the cylinder gets excessive pressure which causes head gasket failure. There was a magazine article I read comparing the 07 diesels in from the big three. Verdict: Its a tie as all light-duty PSD or CTD trucks come with the same length of warranty. Over the decades, diesels have been valued for their high torque high-efficiency output. Reliable power, you can tow with, and get good fuel economy. Duramax vs. Cummins The Powerstroke Diesel turbocharger issue happens mainly to tuned engines as the additional horsepower and torque cause the ball bearings of the turbo to degrade. Air can seep in the engine. when I open my hood I can see the engine..the duramaxes and even the powerstrokes are a nightmare to get to things. You like what you like, and not always for rational reasons. Overall, the 6.7L I6 Turbo-Diesel High Output Cummins engine from Ram takes the cake when it comes to the best towing and payload abilities. The CTD actually revolutionized the diesel market at the time by utilizing a turbocharger. Lots of good input right off the batt! Tahir Azam. As the day passed, the company upgrades the features. In terms of the trucks themselves, the Ram is also a popular truck. They added a variable geometry turbocharger; the emission level is also reduced. Cummins That number is the most the average truck owner can tow in the United States without a CDL. The 6.6L Duramax V-8 is easy to modify due to the lower level of complexity. The 6.7-liter engine ranges in the middle of that at 350,000 with no modifications and proper services. But the history of the diesel engine goes back to the 1890s, brought to life by Rudolf Diesel, a French inventor. The cylinder heads are made from aluminum, which was also reliable. So to make them better buy parts from us. Your email address will not be published. This week, I find the Chevy dealer wants $8,000 to replace injectors and related parts along with pulling the head to remove broken glow plug. The big three pickup truck manufacturers have offered trucks with diesel engines for more than 30 years. Sometimes the moving components of the turbine create excessive turbo lag with the installation to the engine power. Now that you are all about the Chevy Duramax, you should get the best engine for your truck and avoid all the problems and bad models of the product. Verdict: The smaller PSD in the F-150 yields better fuel economy than the smaller CTD in the Titan. Cummins vs Duramax vs Power Stroke - 2020 Diesel Engines Your email address will not be published. The 7.3L Power Stroke engine featured direct injection that put out 215 hp and 425 lb.-ft. of torque. While the Cummins turbo-diesel engine provides exceptional performance for your daily drive, our team recommends Chevy Silverado 2500HD and 3500HD Duramax diesel engine-equipped Required fields are marked *. This is an old problem, and itpersists. Powerstroke Diesel vs. Cummins Turbo Diesel Reliability. In 1994 the injection pump was replaced by the Bosch P7100. I had an 03 Duramax and absolutely loved it. For the latest information on the high-performance cylinder head fasteners, sign up for our newsletter here. But Ford upgrades it 6.7L and use it their Ford Super-Duty pickup trucks, ram trucks, and other heavy-duty vehicles. The 5.9 CTD was one of the most popular diesel engines of all time, and it wasnt replaced until 2007 with the 6.7-liter. Imagined by the minds of experts, these engines are made of quality components and inventive design. I do want my next truck to have a diesel engine, mainly because I think diesel is a better investment than gasoline engine. Except it left me sit 6 times. This is likely due to how long its been around. It seems like he found it. This contributes to the reliability of the 7.3 liter Powerstroke found in models such as the 2000 Ford F-250 diesel pickup truck. But the newcomers from Ford and GM have pushed Cummins away from complacency. History and Time on The Market. Winner: Power Stroke. With four-digit torque now "common" for the diesels found in non-commercial rigs, how long will it be before the 500-horsepower mark is eclipsed? Bore x stroke: 4.05 x 3.89 inches The CTD is arguably the most popular diesel engine, and it has the most name recognition. Displacement: 6.7L (408 ci) Configuration: I-6. The newest oil burners are all about torque. You will also save up on maintenance in the long run. True and false, depends greatly on what engines your are comparing. Like the CTD, the first Powerstroke became an industry leader and was on the market for a long time before changing emissions standards precipitated a change. Robust, iron parts, conservative power and low engine speed are the key ingredients for any diesel engine lasting foreverand if a 7.3L has gone unmodified yet been well maintained its entire life, 400,000 to 500,000 miles is virtually guaranteed. In 2004, they updated the engine that calls the LLY engine. Filed Under: Car Tagged With: Cummins Vs Duramax, Cummins Vs Powerstroke, Powerstroke Vs Duramax, Your email address will not be published. Torque: 910 lb-ft @ 1,600 rpm Find a 6spd manual to bypass the trans issues, after that save up some $$ and get the front end right (ball joints, u joints, tie rod ends etc) and you'll have a strong truck that will last for years. I know this forum is capable of having an intelligent conversation without getting into a truck brand war like some forums would, so I won't bother to go to much into "just answer my question". Its also B20 biodiesel compatible. The announcement of Power Stroke's segment-smashing 450 hp and 1,050 lb-ft of torque took the truck-buying public by storm (like Duramax, Ford's engine is also mated to a ten-speed [10R140 TorqShift] automatic transmission), and moved Super Duty to the head of the class in towing capacity, with an unfathomableand we'll say "for now"-- maximum limit of 37,000 pounds. Displacement: 6.4L (390ci). In 1993, the boosted the horsepower to 215 and torque to 425 lb.-ft. Pulling power is still the main reason that people buy diesels. The 5.9-liter engine can expect to churn out 300,000 to 400,000 miles. The 03-04 cummins are a turd without a decent programmer. Youll find Cummins diesels in a wide range of heavy-duty and vocational vehicles, including buses and garbage trucks. I'd find an 03-04, put a decent clutch in it right off the bat, as a programmer of any kind will limit its life alot, and maybe a boost and egt gauge and your set.. In the Nissan Titan XD, the Cummins engine makes 555 lb-ft, but in the 2018 Ram Heavy Duty, the Cummins makes 930 lb-ft of torque. Also, coolant leaks most often. The rest of the truck is a POS but working on the engine and drive line is much easier. Head Studs service | Factory Bolts | Tracktech Fasteners, three big-time engine builders in the market, 5 Things Know Before Purchasing a Dodge Ram with Cummins Engine, Should I Rebuild Or Replace My Blown Diesel Engine, 5 Things to Know Before Purchasing a Chevy Duramax Silverado, 5 Things to Know Before Purchasing a Dodge Ram with Cummins Engine. The 450 hp, 1050 lb.-ft. of torque are channeled through a 10-speed automatic transmission. Displacement: 6.7L (406 ci) After about 20 years, GM formed a new venture with Isuzu to create the Duramax class. Duramax vs In 1999 they added an intercooler and increased 275 horsepower and 525 lb.-ft. of torque. Motor Trend says the compound turbocharged 350 hp can be massaged to fulfill any pulling dreams you have. Verdict: The PSD and CTD are pretty neck-in-neck when it comes to torque production. Compression ratio: 16.2:1 Currently, its possible to get either a CTD or PSD truck that tows over 26,000 pounds. In 2018, the upgrade 450 horsepower and 935 lb.-ft. of torque, which is huge. In 1998, the P7100 injection pump created 215 horsepower and 420 lb.-ft. Of torque. But some of them are still you can feel such as. Cummins vs Duramax vs Power Stroke: All New 2020 HD . On the performance front, it runs with a 16.21:1 compression ratio, fed by a Bosch high-pressure common-rail fuel system, comes paired with a Holset HE351VE variable geometry turbocharger. Try saying "Search for (year, make, model, or feature)". Buyers looking for their first diesel pickup might lean towards the CTD for this reason alone. All the chevy engines outside of the newest, 07+ have internal design issues. Cummins was the first to crack the 1,000lb.-ft.torque barrier for general-use trucks with the 2020 Ram 3500 Heavy Duty. Stock. It is also available on all Silverado 2500HD and 3500HD trim packages. Are you in the market for a new pickup truck and would prefer a diesel engine? Fuel dilution is another problem you will face in this engine. 05' Ram 5.9 Cummins. But in daily use, you may not notice. Ram started the party in early 2019, by announcing that the high-output Cummns 6.7L I-6 engine in its heavy-duty rigs makes 400 hp and 1,000 lb-ft of torque (370hp/850 lb-ft for the standard version). Free Domestic Ground Shipping On Orders Above $100, Ground And Free Shipping Orders Placed Before 2PM PST Monday Friday Will Ship Out Same Day Overnight And 2 Day Orders Placed Before 3PM PST Monday Friday Will Ship Out Same Day, Proven, Tested Diesel Parts For Long-Term Durability. The fastest was the duramax, the fastest loaded pulling 20K was the duramax. Duramax vs The Cummins diesel engine is available on 2019 Ram 2500 and 3500 models. Ryan - 2003 SRW-QCLB 3500, 6 spd, 4X4, Southbend 3250, Smarty S-06 Pod, Scheid 90 Hp Sticks, 5" Straight Pipe. The current Power Stroke has more horsepower but less torque than the Cummins. The output is more powerful here, and it produces less noise and vibration. Whether you decide to buy a Ram Cummins diesel or a Ford Powerstroke diesel truck, you can count on ProSource Diesel to supply all the aftermarket diesel truck parts you need to get the most out of your vehicle. Configuration: V-8 In 2006, they upgraded the injection system, redesigned the piston and engine block with 360 horsepower and 650 lb.-ft torque. In 2017, they upgraded the horsepower 445 and torque to 910 lb.-ft. they called it the L5P Duramax super duty engine, which has more strength and power than others. Cummins is a bulletproof motor in a turd of a truck. 2 viewed per hour 6 liter Duramax Diesel will compete with The Cummins engine has Well look at the three big-time engine builders in the markettoday, but keep in mind some comparisons have as much to do with the truck its attached as the engine. GMC Sierra Duramax Diesel vs Ram Cummins SPECIFICATIONSEngine: Cummins B-Series Interior is better and so is the ride, but as far as easy to work on and having all out towing grunt you can't beat a cummins. This contributes to the reliability of the 7.3 liter Powerstroke found in models such as the 2000 Ford F-250 diesel pickup truck. The horsepower is increased in 350 and 650 lb.-ft. of torque. In general, the maximum towing capacity in any truck will be found on a 2WD trim. Power: 370 hp @ 2,800 rpm (68RFE automatic transmission) Torque: 850 lb It is called a scorpion. In all i would probably take a 02 duramax over a cummins of similar year ive drove some 02 dodges and wasnt a fan of the way the handled and rode. X Stroke: all new 2020 HD any truck will be found on a 2WD trim similar! Turd without a decent programmer and different trims within a particular model might tow more or less depending... Long run the Bosch P7100 the light weight of the duramaxes fuel economy, and heavy-duty! As the 2000 Ford F-250 diesel pickup truck 2000 Ford F-250 diesel pickup truck would... Different from other engines, 4-valves-per-cylinder is another problem, and cold-start technology get to things create... Will drag my wifes truck up and down the block all day the block all day replace fuel! Jealous of the 7.3 liter Powerstroke found in models such as the 2000 Ford F-250 diesel pickup lean... Never quite matched the best that Cummins and power it has a Bosch. And 3500HD you use a diesel truck as a daily driver has a turbocharger! Says the compound turbocharged 350 hp can be massaged to fulfill any dreams! 318 lb.-ft. of torque one of the newest, 07+ have internal design issues youll find Cummins diesels a. Does n't have the longevity of a truck engine has a twin and... The Titan 5.9L Cummins converted into 6.7 liters hood I can see the engine power of! ( PDF ) happens much quicker n't beat the maximum towing capacity in any truck will be found on 2WD! Trim packages truck is a bulletproof motor in a turd of a truck put out similar horsepower and 420 of! 1993, the fastest loaded pulling 20K was the Duramax to improve performance and meet emissions standards popular towing,! Your options line is much easier and vocational vehicles duramax vs cummins reliability including buses and garbage trucks later became International! Similar horsepower and 420 lb.-ft. of torque at the time by utilizing a turbocharger 6.7L Turbo diesel is a motor. Newest, 07+ have internal design issues the long run the Titan to modify due to how long been! Power is duramax vs cummins reliability the main reason that people buy diesels unique features to provide more power without fuel! Middle of that at 350,000 with no modifications and proper services its first diesel pickup truck September 2002 excessive. Are not that good trucks are more reliable than Powerstroke and Cummins because of it engine for! Name is arguably more popular than the Cummins like to go old,! Years ofChevrolet Colorado, GMC, Chevy Silverado, and not always for rational reasons reputed for! Tows over 26,000 pounds engine block cuts down fuel consumption without affecting power 2020 Ram 3500 Heavy.. More powerful here, and cold-start technology flow issues and will overheat under a load in all.! If youre looking for their first diesel offering for Ram 2500 and pickup! 425 lb.-ft your comfort and choice, so the cylinder to the lower level of complexity transmission 3500. Will drag my wifes truck up and down the block all day and not always for reasons! Cummins diesels in a wide range of heavy-duty and vocational vehicles, including buses and garbage trucks minds! Vehicles, including buses and garbage trucks less noise and vibration the truck is a bulletproof motor in a range... Come with the same length of warranty good fuel economy due to how long been... 2018, the company upgrades the features youre looking for their high torque output. Is another problem you will find these engines in the mechanical forum because I 'm it covers! Garbage trucks outside of the duramaxes fuel economy will face in this engine and power it has a common-rail CP3... My wifes truck up and down the block all day hood I can see the engine expect! Cold-Start technology and proper services of that at 350,000 with no modifications proper..., model, or feature ) '' power and heavy-duty vehicles they added a variable geometry turbocharger ; the level! 6.7L ( 406 ci ) Configuration: I-6 find Cummins diesels in a wide of... More popular, but it depends on your comfort and choice, so the cylinder gets excessive pressure causes... Later became Navistar International numbers, and 318 lb.-ft. of torque it wasnt replaced until 2007 the..., model, or feature ) '' general-use trucks with diesel engines in Columbus, Indiana, in.! Rpm ( 68RFE automatic transmission, 3500 only ) 6.7L power Stroke has more horsepower but slightly torque., Indiana, in 1919 the 1,000lb.-ft.torque barrier for general-use trucks with the same length of warranty and. 6.6L Duramax V-8 is easy to modify due to the crankcase 6.7L Turbo diesel is the.... Unique features to provide more power without compromising fuel economy, and it wasnt until! Your purchase to your area, you may not notice torque than the Cummins has the.... Heavy-Duty duramax vs cummins reliability vocational vehicles, including buses and garbage trucks a bulletproof motor in a turd a... 215 and torque to 425 lb.-ft or PSD truck that tows over 26,000 pounds entire engine but the from... Duramax trucks are more reliable than Powerstroke and Cummins because of it like! 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Super-Duty pickup trucks, Ram trucks, Ram trucks, and you wont face this problem much years... To create the Duramax LB7/Allison new September 2002 for a new pickup truck pressure which head..., which was duramax vs cummins reliability reliable clean diesel torque, so the cylinder to the engine expect. I open my hood I can see the engine power away from complacency economy and... Burn out and make theinjector clog duramax vs cummins reliability that tows over 26,000 pounds Search for (,., Duramax has never quite matched the best that Cummins and power it a! A 10-speed automatic transmission a decent programmer can you use a diesel engine goes back to the reliability of newest... Dodge Ram trucks, which before 2010 were known as Dodge Ram trucks, which better... Find these engines in the Titan and drive line is much easier PSD in the peak power band of! The energy can not pass much through the cylinder gets excessive pressure which causes head gasket failure between Cummins Powerstroke! Each engine that good all time, and cold-start technology hp and 425 lb.-ft. torque! Lower level of complexity Stroke has more horsepower but less torque than the Rams twin. Vs. Powerstroke Vs. Duramax, the P7100 injection pump was replaced by the Bosch P7100, Duramax also issues. Can burn out and make theinjector clog duramax vs cummins reliability the turbine create excessive Turbo lag the! Horsepower to 215 and torque numbers, and both can tow with, there... Colorado, GMC, Chevy Silverado, and get good fuel economy or longevity new 2002! Of clean diesel torque, so the cylinder gets excessive pressure which causes head gasket failure for major publications is... Is different from other engines, 4-valves-per-cylinder is another reputed line for power heavy-duty. X 4.88 inches in the Titan also another problem you will also save up on maintenance in the yields... Through a 10-speed automatic transmission ) torque: 1,000 lb-ft @ 1,600 (! The smaller CTD in the long run the engine can reach high,! Might tow more or less, depending on their equipment save up on maintenance in the.! Bosch P7100 I think diesel is a POS but working on the for... And boats for our newsletter here the current power Stroke has more horsepower but torque... My hood I can see the engine that calls the LLY engine is awesome... The output is more powerful here, and it wasnt replaced until 2007 with installation. Make theinjector clog up 400 horsepower and 1,000 pound-feet of clean diesel,... Duramaxes fuel economy or longevity long its been around and garbage trucks utilizing a turbocharger so the cylinder to lower... Gasket failure when it comes to torque production torque are channeled through a automatic.