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Old 02-20-2016, 11:08 AM   #1 (permalink)
80Sierra
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LLY to LBZ swap questions

I've got an 05 LLY / ZF6 truck that I bought to rob the drivetrain out of and to swap into an 03 Yukon.

Winds up the donor truck I bought may have a bad set of injectors. I can get an LBZ engine with half the mileage and in good running condition with every part I need for the swap for about the same cost as a replacement set of injectors for the LLY.

I have a couple of questions though:

1. Will the 05 LLY flywheel and clutch bolt up to an LBZ?

2. Are the LLY and LBZ engine mounts the same?

3. Will the Bosch LBZ PCM will communicate with the 05 manual trans instrument cluster and other 03 modules such as the HVAC control module?

4. Can you bolt the LLY front timing cover, water pump and fan up to the LBZ so I can use the LLY radiator and fan shroud?

5. Can I use the LLY intercooler and piping with the LBZ engine?

6. Will the LLY downpipe back exhaust fit onto the LBZ downpipe?

7. Will the LBZ air filter assembly be a direct replacement for the LLY stuff?

Anything else that needs to be done (aside from some wiring changes and replacing the throttle pedal) to do the swap that I haven't thought of?

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2014 GMC 2500HD LML - Daily Driver

1995 Chevrolet Tahoe 2 Door LB7 / ZF6 SAS 1 tons and 37s - Sunday Driver
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