Question about 1983 Chevrolet Silverado

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1996 454 EFI in 1983 Silverado

I have a 1996 454 that I am rebuilding, complete with fuel injection manifold etc., .030 overbore Chev HP roller cam (500 crate engine type). I would like to put it in my 1983 silverado and use the fuel injection as per 1996 spects. I have found a Painless wiring kit for big bucks that I can use to run the engine, or a Mega Squirt system that requires you to build a kit. Would like to get a set of complete set of connectors etc and wire them to a used computer to fit my budget. Any idea's where all the parts can be found. I am sure Chevrolet has all the pieces but they want 1300 for an assembled wiring harness, and they can't seem to figure which one to use. Like to use something that has been tried before or talk to someone who has done the same. Contact me at *** (Use subject SILVERADO to get through the junk mail filter) if you have any answers.

Posted by Anonymous on

  • Marvin
    Marvin May 11, 2010

    There are GM only wrecking yards all over the place, they will sell the wiring harness, any wrecking yard can run a locate over the whole national network, but they will charge more if they have to get it from another yard. I have gotten many used harnesses over the years for burn jobs, never had a problem getting a used harness, about $200-$300 I would venture to guess.



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Summit offers several wiring kits ... here is the link .....

I'd go with what emissionwiz said for the computer, a used one is a lot less than a new one. Also you can call summit and talk with their techs to determine which would be the best app.

Posted on Jan 04, 2009


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