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  • 5.7 hemi

    Just picked up a 5.7 to put in my wc 12. Truck currently has a Chevy 350 and auto transmission sitting between the fram rails. The truck is not currently running. I am in over my head. Any ideas for a manual transmission. What is the easiest way to wire it up. Should I keep the EFI and buy a stand alone computer, or switch to a carb. Some help please.

  • #2
    That engine was not designed for a carb, so you'll have computers either way since there is no provisions for a distributor. I think keeping the injection is preferable from a performance and drive-ability standpoint, but that does mean some other changes, such as upgrading the fuel system. Painless may have a harness for the engine, and someone like Diablo would probably be able to reprogram the computer.

    As for a manual transmission, probably have to see if/what Dodge put behind them in the trucks. Barring that you'd have to look for an adapter setup.

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    • #3
      I believe Arrington now makes a front cover for these engines that allows you to run a distributor off the timing drive. It is not a cheap part but it should allow you to completely do away with the computer if you wish.

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      • #4
        Originally posted by Aaron S View Post
        I believe Arrington now makes a front cover for these engines that allows you to run a distributor off the timing drive. It is not a cheap part but it should allow you to completely do away with the computer if you wish.
        Gordon likes this.
        Power Wagon Advertiser monthly magazine, editor & publisher.


        Why is it that the inside of old truck cabs smell so good?

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        • #5
          Seems like bolting a propeller onto the front of a jet engine.

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          • #6
            Propeller on jet engine

            DeSoto, I really like that line of yours! Of course, it has been done in the aircraft test industry.

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            • #7
              Originally posted by Desoto61 View Post
              Seems like bolting a propeller onto the front of a jet engine.
              Don't they call that a"Turbo-Prop" ;-)

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              • #8
                Originally posted by KLEMM View Post
                Just picked up a 5.7 to put in my wc 12. Truck currently has a Chevy 350 and auto transmission sitting between the fram rails. The truck is not currently running. I am in over my head. Any ideas for a manual transmission. What is the easiest way to wire it up. Should I keep the EFI and buy a stand alone computer, or switch to a carb. Some help please.
                If you do a search for aftermarket throttle body kits or just peruse the Summit racing catalogue, you'll find some decent, if a bit pricey alternatives to throwing a carb on that engine. I've seen it done, but nobody I've talked to was happy with the result.

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                • #9
                  stay with the efi

                  that hemi is one of the most supported swaps. buy a harness and make it happen.

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