will the wires connect 2.8 to 4.3

[littletruckbigengine]

I have a 85 s-10 with a carb 2.8 and I want to put a 4.3 efi from a 89 blazer and wanted to know if the interior plug would interchange or will I have to do some wire work. thanks

[Sparky2263]

You'll want the ecm harness and ecm from the 4.3

As far as A/C, gauges, acces., you'll have to lengthen or re-locate most of those wires. Then you'll need to wire in the ecm grounds, batt. power and ignition power.

In other words, yes, you'll have to do some wiring, but nothing drastic.