LBZ going into my 02

07keo02

07keo02

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Oct 5, 2011
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I know this gets old, but if everything goes well tomorrow on the transaction I will have an LBZ/ 6 speed Allison coming my way to get swapped into my 02 LB7. I will be sending the harness, ECM, and TCM to btdiesel to get re-worked. The guy has the whole truck and he wants me to make a complete list of everything that I need to get it right the first time. I'm thinking:

-Engine complete with ECM, accessories, boost tubes, intake, coolant hoses and wiring harness.

-Transmission with wiring harness and TCM

-Throttle pedal

-Cluster (May not need it for now but btdiesel is working on a fix for making that work according to their site).

I'm racking my brain to make sure I get everything. Anything I'm missing? Should I get the fan/shroud/rad or stick with the LB7's?
 
lb7gmc

lb7gmc

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Feb 26, 2015
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would love to stay updated on this plan to know how much it ends up running you, thought about doing this later down the road myself.
 
clrussell

clrussell

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Subd.. Doing this in the very near future. Like couple weeks from now. Lbz into a zf 02
 
IdahoRob

IdahoRob

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2001/2002 and they are not plug and play. 2003 and up are mostly plug and play. I did an 02 with a LBZ swap and the wiring is not easy. Ben may have a simple fix though.
 
clrussell

clrussell

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IdahoRob said:
2001/2002 and they are not plug and play. 2003 and up are mostly plug and play. I did an 02 with a LBZ swap and the wiring is not easy. Ben may have a simple fix though.
Click to expand...


Ben offeres a plug in play harness. That's what I'm going with. I should have been more exact in my statement
 
07keo02

07keo02

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I've been in contact with Ben. I am thinking I may get an LLY instead. I've been weighing the cost/ benefits of the full blown LBZ vs the LLY swap. I'm not overly concerned with having the 6 speed. Also , the biggest reason I was thinking LBZ was improved head gasket design but this motor is an 06 so it could have the old gaskets from what I understand. I know LBZ pistons are a possible issue and I would rather do studs and gaskets than those. Finally, I have a somewhat complete LLY long block in my garage with a cracked piston that has a bunch of spare parts. I'll be calling the guy with the engines in a few minutes and will keep the thread updated.
 
clrussell

clrussell

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I've got a 100% complete lmm engine with a 366 on top sitting on a stand waiting on an lbz harness and ecm.. Then it's going in the 02 as soon as I get it and do a couple other things under the hood while the engine is out.

Getting pretty excited about this project. Should make a good daily driver/ tow pig.
 
bigmackmiller

bigmackmiller

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Nov 30, 2008
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Yeah I was curious how this was going to work, not saying its impossible but a lot more involved than the 03+, keep us posted :thumb:
 
07keo02

07keo02

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I'm going LLY. Much less money and I think I can make a lot back with my LB7 motor. I'll have spare parts for the LLY this way including a turbo and heads. I'll be throwing in an LBZ mouthpiece and profab egr delete tube before the motor goes in. I'll be using the LB7's passenger up pipe for a nice factory looking delete.
 
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