8.1 Vortec to LB7 Swap: What's it gonna take? - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 12-11-2012, 05:40 PM   eBay Motors  #1 (permalink)
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8.1 Vortec to LB7 Swap: What's it gonna take?

I have 120k on the clock on my '01 2500hd. I just recent spent about $1500 bucks in repairs and new tires. I really like my truck. I'm intrigued by a diesel though. I know that I want to get a diesel in the future and/or swap one into my pickup. My truck isn't worth much ($9k). I was looking around, and I can get a used duramax with around 120k miles for about $5k. Besides the engine, what else do I need to do the swap.

I have looked around, and I know what you're probably going to say - that it's cheaper to just buy a duramax. If I can find one with this low of miles and do the swap myself, then it probably wouldn't be cheaper. What do you think I need to do to swap it in?
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2001 Sierra 2500HD EC LB 4x4 8.1L V8 3.73 gears, 120k miles, 285/70r16 Nitto Trail Graps, aftermarket dual exhaust, Vision Warrior 375 wheels.

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Old 12-11-2012, 05:53 PM   eBay Motors  #2 (permalink)
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Contact this guy.....he even says to
02 3500 8.1 to 6.6 DURAMAX swap completed! - Page 2
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Old 12-11-2012, 06:00 PM   eBay Motors  #3 (permalink)
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Thanks!
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2001 Sierra 2500HD EC LB 4x4 8.1L V8 3.73 gears, 120k miles, 285/70r16 Nitto Trail Graps, aftermarket dual exhaust, Vision Warrior 375 wheels.

Hopefully getting a Duramax soon!
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Old 12-11-2012, 09:37 PM   eBay Motors  #4 (permalink)
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anyone done it?
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2001 Sierra 2500HD EC LB 4x4 8.1L V8 3.73 gears, 120k miles, 285/70r16 Nitto Trail Graps, aftermarket dual exhaust, Vision Warrior 375 wheels.

Hopefully getting a Duramax soon!
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Old 01-12-2013, 02:41 PM   eBay Motors  #5 (permalink)
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Soo... aafter doing some research I heard that if I get hold of a donor, I could take out all necessary components out of it. If I get the lb7 mounts I could bolt that in. I also heard that the wiring harness would plug up to any 2500hd wiring components in the cab. Thoughts?
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2001 Sierra 2500HD EC LB 4x4 8.1L V8 3.73 gears, 120k miles, 285/70r16 Nitto Trail Graps, aftermarket dual exhaust, Vision Warrior 375 wheels.

Hopefully getting a Duramax soon!
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Old 01-12-2013, 06:39 PM   eBay Motors  #6 (permalink)
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Sounds like a lot of work and trouble if you ask me. A lot easier to sell your current one and find a Duramax.
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Old 01-13-2013, 09:11 PM   eBay Motors  #7 (permalink)
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Trade in the current one and buy a duramax. You can get an lb7 for 8-15k where I live.
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Old 01-16-2013, 12:23 PM   eBay Motors  #8 (permalink)
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Yeah, I think you're right. I don't know if I want an LB7 because of injectors or hold off a few years and get the LLY or LBZ I really want
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2001 Sierra 2500HD EC LB 4x4 8.1L V8 3.73 gears, 120k miles, 285/70r16 Nitto Trail Graps, aftermarket dual exhaust, Vision Warrior 375 wheels.

Hopefully getting a Duramax soon!
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Old 01-16-2013, 12:39 PM   eBay Motors  #9 (permalink)
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I would swap an lbz in if I were going that far..the lb7's will cost more than 5k later when the injectors take a dump(assuming they haven't already)
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Old 01-16-2013, 01:04 PM   eBay Motors  #10 (permalink)
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I kinda like the 8.1 in my work truck. Of course i don't have to pay for the gas! OP, does your 8.1 consume alot of oil? Most in our fleet use alot.
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