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I took a 350 vortex out of a suburban will it work in my 85 gmc will I need

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It will work only if you exchange all of the wiring harnesses and install the relay box and fuse box as well.
 
Brandon Dugas said:
the wiring hornest out of the truc? I still have the suburban
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Your going to have to transplant the PCM system also and try to transplant the transmission also. The transmission on your 85 will not me electronically controlled like the one that the Suburban that the vortec came from.

You can keep the mechanical transmission with your Vortec, but your going to have to fine tune it with the Engine's PCM program for the best performance and to keep it from burning up. :eek:

Good luck and keep us posted. ;)
 
It will work only if you replace all of the wiring harnesses and refit the realy box and fuse box in well manner.
 
I'm assuming your 1985 is carbureted? If you live in an area where there is no emissions tests, you can take the fuel injection off the vortec and place a carbureted fuel system on there if you want to make an ez transition. You will be able to retain your current transmission with that setup. You will need an intake for the vortec heads.
 

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