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-   -   Advice on lt1 swap in a 91 2wd S10 jimmy (https://67-72chevytrucks.com/vboard/showthread.php?t=796276)

Klassen kustoms 11-08-2019 01:48 PM

Advice on lt1 swap in a 91 2wd S10 jimmy
 
Needing some experienced advice from some people who have done the swap! I know my way around a v8 S10 so thatís not the issue but Iím a little stumped on how to wire the lt1? Iíve never really messed around with one that wasnít in the chassis it came with and I want to do something with fuel injection for the jimmy!

Iím just kinda wondering how was the wire harness wiring ? Lots of it or was it fairly straight forward ? Or is their pre made harnesses ( google didnít come up with much )

Iíll probably be doing an lt1/700r4 setup and the trucks currently a tbi 2.8 if that makes a difference in wiring vs the 4.3

Thank you in advance! Any tips about pretty much anything on the swap will be appreciated

Ziegelsteinfaust 11-08-2019 09:32 PM

Re: Advice on lt1 swap in a 91 2wd S10 jimmy
 
They have a couple swap harnesses. I only mildly looked into that when I dropped a LT1 into my 69 Camaro, but I did carb swap for my personal ease.

A couple of pointers. If you use a Corvette, Camaro, or Caprice version. Use the radiator from that vehicle. All 3 have different water pumps, and differences in the radiator due to the way the hoses are utilized.

I used the Camaro style since it looked more like the classic style of my factory heater routing.

Klassen kustoms 11-08-2019 09:34 PM

Re: Advice on lt1 swap in a 91 2wd S10 jimmy
 
I was not aware of that they were different like that thank you.. Iíll look a bit harder into the swap harnesses I mightíve missed something I was hanging out with a couple friends while scrolling so I mightíve missed something while talking

Ziegelsteinfaust 11-09-2019 09:53 PM

Re: Advice on lt1 swap in a 91 2wd S10 jimmy
 
https://www.painlessperformance.com/wc/60502

Lastly it is a good idea to run the steam bypass off the back of the block. Sometimes the air pockets can be trapped there.


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