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, Etc.

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post #1 of 13 (permalink) Old 12-11-2012, 04:40 PM Thread Starter
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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?

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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post #2 of 13 (permalink) Old 12-11-2012, 04:53 PM
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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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post #3 of 13 (permalink) Old 12-11-2012, 05:00 PM Thread Starter
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Thanks!

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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post #4 of 13 (permalink) Old 12-11-2012, 08:37 PM Thread Starter
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anyone done it?

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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post #5 of 13 (permalink) Old 01-12-2013, 01:41 PM Thread Starter
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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?

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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post #6 of 13 (permalink) Old 01-12-2013, 05:39 PM
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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.

Justin 2001 LB7 Silverado 2500HD LT CCSB 4x4.
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post #7 of 13 (permalink) Old 01-13-2013, 08:11 PM
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Trade in the current one and buy a duramax. You can get an lb7 for 8-15k where I live.

- 00 GMC sleeper jimmy. Few goodies Hehe
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post #8 of 13 (permalink) Old 01-16-2013, 11:23 AM Thread Starter
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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

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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post #9 of 13 (permalink) Old 01-16-2013, 11:39 AM
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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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post #10 of 13 (permalink) Old 01-16-2013, 12:04 PM
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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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