1993 gmc Sierra motor swap

Asked by Aug 24, 2016 at 01:10 PM about the 1993 GMC Sierra 1500

Question type: Maintenance & Repair

I got a 1993 gmc Sierra with a 4.3 tbi v6
with a nv3500 5speed trans motor blew I'm
trying to stick a carbureted 305 in it anyone
no what I need to make this go smooth

2 Answers


This may not be a swap that happens often so there may not be many "experts" out there. I would start by looking at ROCKAUTO site. By comparing flywheels, clutches, and pressure plates between the V6 and V8 that would give you some idea of what might interchange or be needed for the swap. Also note when you look at a part on ROCKAUTO site, click on the part number and it will tell you all the vehicles the part fits....so if you are going for used parts you will know what to look for. I suspect you could just use similar year V8 motor mounts, unlikely the V6 mounts will work.

What you think about the wireing and computer

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