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carb 350/th350 swap to tbi 350 in a 4x4



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Old 06-08-2010, 12:13 PM   #1
 
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carb 350/th350 swap to tbi 350 in a 4x4

I have a buddy that has an 83 chevy 4x4 with a carb'd 350/th350 he wants to swap in a TBI 350 so I have a few questions.

1. Will the TBI 350 bolt up to the th350 with or without adapters?

2. Any certain year of truck we need to pull the TBI 350 from? I assume it can be a 2wd truck or 4wd truck for the donor?

3. What all has to be hooked up on the TBI's computer once swapped into his truck?

4. Will his radiator work ok with the TBI engine?

5. Any other surprises I should know about? i.e. motor mounts need to move or exhaust wont fit between frame rails?

Thanks for the help.

I had a TBI v6 in my buggy and it seems like there were only 3 or 4 wires hooked up to the computer and it ran fine.
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Old 06-08-2010, 03:31 PM   #2
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mudskipper4x4 Spottermudskipper4x4 Spottermudskipper4x4 Spotter
Imo the easiest way to do that swap would be to get a donor truck 87-91 that was the same body style an FI from the factory and just pull all the parts that you need for the swap.
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Old 06-08-2010, 03:37 PM   #3
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The early TBI is the easiest to hook up, later they added more junk that talks to the ECM
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