2024 Duramax L5P Engine First Look And Comparison | Banks Exclusive

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Published 2023-04-14
Gale Banks inspects a new 2024 Duramax 6.6L turbo diesel engine and compares the parts side-by-side with a 2023 model; data you won't find on a spec sheet. Available in the '24 Chevy Silverado and GMC Sierra, the engine boasts 470hp / 975lb-ft, up from the previous generation's 445/910. Improvements to the engine include a new turbo, pistons with tapered bowl, cylinder heads with improved cooling jackets, higher-flow injectors for greater fuel injection pressure, fuel rails to handle the increased pressure, improvements to the glow plugs, improved engine braking thanks to a more powerful turbo vane actuator and upgraded valve springs, along with the latest generation Engine Control Module with new Global B architecture.

All of these new parts look seriously durable, but will they translate to more power? We already have a truck on the dyno. Stay tuned!

Banks prefers AMSOIL, the leader in synthetics.
htts://www.amsoil.com

00:00 Intro
01:10 Teardown
02:31 Pistons
06:47 Head Gaskets
07:42 Piston Cooling Nozzles
08:59 Oil Cooler
10:39 High-Pressure Fuel Pump
13:39 Fuel Rails
15:13 Heads
18:16 Turbo
24:02 Dyno surprise!

Oil Cooler Upgrade Kit for 2001-2019 Duramax
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Shop 2020-2023 Duramax Parts
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Shop 2019-2019 Duramax Parts
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Derringer tuner for 2020-22 Duramax. Add 81hp/144lb-ft.
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Derringer tuner for 2017-19 Duramax. Add up to 61hp/112lb-ft.
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Duramax L5P Blueprint T-shirt
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#mechanicalengineering #engineering #diesel

All Comments (21)
  • @AZTrucker
    Gale is a damn national treasure in the diesel industry and packed full of knowledge. Always enjoy his engineering breakdowns.
  • @jhb3711
    Gale Banks is full of knowledge and watching these videos is always a highlight.
  • @nathanmedema5458
    I could listen to this man talk about engines all day long. His explanation of how things work is second to none!!
  • @J_W1
    Not only does he explain everything, but I absolutely love the CAD images he uses, and diagram animations that are edited into the video to further explain everything. For someone like me, who doesn't have much automotive experience, those images and animations puts it into laymen's terms and just makes this such a pleasurable learning experience. Gale's videos aren't just "here's X information, you can do Y things with this information", his videos show the type of teacher who could talk for hours and hours and still make every bit of it interesting.
  • @danielnation9123
    Now I understand why Banks, the company is what it is. This guy is a legend!
  • @mini2nut67
    Gale is getting up in age but his mind is sharp as a tack. You can tell he is passionate about diesel engines and what makes them tick. Great job!
  • I've never ever watched a video on this channel and not left with new knowledge to contemplate. Thanks for everything you do for us Gale. You're an absolutely gifted teacher
  • @PlaneSaddles
    On the fuel rail pressures, all of the comparisons are at peak. I'd be interested in if the pressures were raised over the whole throttle map, if peak is reached sooner, etc...oh crud, I'm a nerd. I love these kinds of break downs, keep them up Gale!
  • Excellent episode! As far as sound levels go, only the introductory music stings were mixed too high. It is great to have large-print written out title cards for each part of the engine that Gale is describing. I love the detail you all get into. Please, keep it up. Love it.
  • @darknes7800
    Holy Smokes !!!!!!!!!!!!!!! Gale Banks is 81 years old and SHARP as a razor! Bro, keep up the great work!!!!!!!!!!!!!!!
  • I have a Duramax and took to the Banks shop. Boy, what a difference for power and engine performance. He has some positive answers for the Duramax.
  • @alkalk8938
    Ridiculous how much i love listening to this man talk about engines. Although now i feel like my 2018 l5p isnt capable of pulling my 10K camper 3 times a year!..JK, this truck is so much more than i need and i love it
  • Sounds like the engineers at GM/Duramax have been paying attention to the master of performance, power, torque, and reliability.
  • Gale I truly wish I had tried harder to get a job out with you all when I got out of school. 15 years working at Cummins R-D but I still enjoy your technical videos.
  • Love these episodes and breakdowns. Plus going into why the manufacturers do what they do.
  • @FBP3392
    This man is the Bob Ross of the diesel world, I can listen to him talk all day long and actually understand what he is saying which is insane for a person like me lol
  • @jtb3797
    GM's turbo technology has surprisingly advanced very well in the last 5 years