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Old 07-17-2015, 12:57 PM
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Carb vs efi

Looking at a engine upgrade we have a 94 wrangler almost rust free I love the wrangler because it reminds me of my old cj currently has a 2.5 but want more power but not as much as a v8 the main use is just a runabout vehicle and maybe a little off road in the future and was looking at a 4.3 gm swap but would like fuel injection can a factory efi be installed or would a after market efi be easier to install. I'm thinking a vortec 4.3 because if at a later date I can just drop in a v8 I know a trans/transfer swap is also needed but just looking for info on motor swap

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Old 07-18-2015, 05:52 PM   #2
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the 4.3 with fuel injection will go in.. theres some companies that sell the wiring harness if you dont wanna mess with it..

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Old 07-18-2015, 08:19 PM   #3
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I would see if I could find a 4.0l with the trans and transfer case so it comes as a package that I haven't heard many people complain about.
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Old 07-18-2015, 08:27 PM   #4

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well your going to need a trans and mods to the t-case no matter what you put in.. i would go with as noted above a 4.0L... you will need the computer as well.. Might be cheaper int he long run to sell your and buy a new jeep..

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Old 07-19-2015, 10:10 AM   #5
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If you go 4.3 GM, look for a gently used 4x4 S10. This gives you plenty of time to remove the engine and any wiring necessary. There are companies that make adapters for the wiring and computer.

Also, be sure to use the Chevy S10 transfer case internals. These will fit inside the Jeep 231 TC. The S10's rarely go into 4wd. The internals are usually new on a high mileage vehicle.
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