Duramax with a 4L80E
- Thread starter cbarnett_2500
- Start date
Durmaxzac, no. I came here with an open mind. I don't have any diesel components yet. I just wanted help understanding something that I knew little about before I went and spent money on a totally different engine.
Ty_lbz, I never saw his post. My appologies. Thank you for pointing it out.
Also, Smokeshow, thank you for your input and for not being a jerk when telling me. I really appreciate it.
Ty_lbz, I never saw his post. My appologies. Thank you for pointing it out.
Also, Smokeshow, thank you for your input and for not being a jerk when telling me. I really appreciate it.
We're all here to learn from each other, just don't take post here personally. Any forum or site can get to you, shoot just take a look at some of the YouTube comments.
Damn, that's not what I wanted to hear, had planned on a 4L80 behind a compound turbo LBZ swap I have planned. ~3400lbs though, not a heavy truck.
No upgrade for this?
If you can handle your foot once you put a duramax in, you'll be okay with the 4L80. Not many people can control their feet once they feel the torque of a diesel. Hell, most of us love how hard a diesel can bury us in the seat once they experience a performance tune. Pretty hard not to do it often.
That's the only reason I'd want the Duramax lol. It's ok though. I'm just gonna put the transmission I've ordered on my stock Vortec 6.0. Then maybe during the later part of the summer, I'll learn how to build my own built transmission and swap the drivetrain to a duramax.
My problem isn't finding an engine. I've found multiple of those. My problem is finding a transmission that is still good. All the ones I've found won't shift, are stuck in a gear, don't have reverse, or don't move at all. That's the only reason I even asked whether or not a 4L80E would handle it. But since they won't, I'll just stay with the unleaded pump for a bit longer.
Why not just put the new tranny in your truck than sell it and buy a truck with a Duramax already in it?:thumb:
I spoke with Dave Goerend on this subject, he says he would use a 4l80e over a 48re any day in this type of use....depending how crazy your compound lbz may be I guess
I might have to give Dave a call, I've spent a couple hours on the phone with him and I feel REALLY stupid afterwords:rofl: Knows his trans stuff for sure.
After I posted I thought "well I could always put a 48re behind it..."
I don't plan on anything too crazy, figure ~3400lbs and 6-650hp with stock/475 compounds would be more than enough to make traction a serious problem.
What is done to this truck that makes it so heavy? Crew cab long bed straight axled??? Duramax allison trucks barely weigh that....
The Allison doesn't fit in the vans. They are also tuned about 100 hp less stockDidn't some of the earlier model duramax vans come with a 4l80e?
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Hell if I know. The truck is a 2000 Chevy Silverado 2500, IFS, ext cab, short wheel-base. It was 8400 stock. Since then, I've added 2 15 inch subs, a custom box (which weighed 150 lbs itself), 20x10 wheels, bigger tires, a toolbox, and a beefier transfer case. I DID take the tailgate off... so that eliminated a little weight :roflmao:
Duramaxzac, the truck, with a good transmission, is only worth 4500 :/ And around here, you can't find a good Duramax under 15,000. That's why I wanted to do the swap. I have found some trucks that have either had wrecked rear ends or bad aesthetic damage. The owners were going to sell just the engine, transmission, and transfer case for around 4k, but all of the transmissions were either junk or soon to be junk. Plus, I LOVE working on my truck, and I've always wanted to do some sort of engine swap. I thought it would be cool to do the Duramax swap, but since I just ordered a new transmission, I wanted to know if it would bolt to the Duramax and last a while. Buuuuuut, now I know that answer is no. lol.
HA yeah people look at that sticker in the door and say yeah my truck weighs 9600 or something.
So can thr 4L80E be built to hold behind a built duramax say 800 hp? I'm guessing not.
So can thr 4L80E be built to hold behind a built duramax say 800 hp? I'm guessing not.
Guessing is right. Hp isn't the issue. It's low RPM torque, move the RPM range up, get away from big peak Tq numbers and an 80 will live fine behind a big power anything.
Your truck should also have a semi floating 14 bolt rear axle which is a little light duty for a duramax.
His reasoning was the 4l80e has a center support and roller sprags for each clutch, so you can't get a bind like a 48re...