Question about Chevrolet C1500

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I would like to know if you can change a tbi over to a carb on a 4.3 v-6.

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  • penraydylan1 Jun 18, 2009

    thanks for the info... i didn't mention that it is a straight drive and i live where there are no insp. i guess that means that there isn't a carb that would go on this intake. the reason i want to change is the harness to the ecm is damaged and it would take some doing to change over, not to mention hard to find a good used one.well thanks again.

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  • Chevrolet Master
  • 3,854 Answers

You can but your going to put lot's of money and time in to it. The electronic's to the throttle body is tied in with the ecm which also controls the transmission shift points and firmness to the throttle body blade position. If you change it of to the Carb your going to have to replace the intake manifold and and distributor and buy a painless wire harness to tie in with the transmission shift points and you may even have problems having the truck pass emissions if there are any missing for the year and make of vehicle. Unless your going to have it off road use only like a race car. Used to be a time where it was free for all then it changed that you can not even swap a older engine in a car older then it's mauvatured date which mean you can put a 2009 corvette engine in your truck but can not put a 1979 corvette engine in it if your truck is 1980. 

Posted on Jun 18, 2009

  • Harvey N Tawatao
    Harvey N Tawatao Jun 19, 2009

    You can get a wire harness from Auto Zone or from painless wire. Even EBay, keep in mind mist wire harness don't change from year to year. What ever year and make your truck or car is you can do a cross reference to the newest wire harness that will work on your vehicle. Good luck and keep me posted. Here is a link that you may be interested in, since your playing with the 4.3  http://www.hotsixes.com/hotsixes/?page_i...

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