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Chevy Engine replacement additional parts needed

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  • #654197
    JustinJustin
    Participant

      So I have a 1995 Chevy K1500 Truck with a 350 TBI with 270,000 miles

      First a little background…
      I recently started having some main bearing noise and low oil pressure. after my own inspection and taking it to a shop, we decided that the crankshaft was not properly clearanced when the engine was rebuilt before i bought it. after researching around and talking to a couple machine shops and my mechanic again, it was decided that we are not going to rebuild the engine due to the fact that a new one from autozone is 1300 (or 1700ish from summit) and rebuilding it would cost 2000ish (which is fine by me, i feel a little better having a new one professionally built instead of me possible messing something up again putting it back together)

      So I was mainly curious what else needs to be replaced alongside the new engine. I have already has the transmission inspected and they say it was rebuilt properly and should last 100k more miles roughly (yes i know i can trash it faster than that, but im not doing stupid this to screw up the transmission). the engine i am going to order is a long block without tins (valve covers and timing covers). here is what i know i will need to buy:

      1. Intake manifold gaskets
      2. Exhaust manifold gaskets (and bolts)
      3. water pump
      4. fluids (oil, antifreeze, etc)
      5. thermostat
      6. gaskets
      7. distributor (possibly, it will be checked and if it is good, wont replace)

      Here are things that have been replaced recently:
      1. all of the steering system (thanks chevy for the loose steering, lol)
      2. alternator
      3. starter
      4. various sensors (IAC, oil pressure sending unit, tps)
      5. radiator (its ordered, just saw it leaking from where the plastic meeting the metal, it will be installed as soon as it gets here)
      6. wiring (from alternator to battery and all new grounding wires, plus additional ground wires)

      Now this is not being replaced at a shop, since i have a friend who has a nice garage with all the tools I am missing (cherry picker mainly) so we are figuring this will take us two weekends plus the weeknights in between to transfer over the parts between the engines. we are not wanting to rush through this job, and have a mistake that we didnt see that causes us to tear it apart again later.

      this replacement is going to occur in about 3 months so i can ride my motorcycle while this is happening (granted i ride it year round and almost every day during the summer). the main thing is I really dont want to be running back and forth to the store to get little parts and pieces

      Any advice is welcome and appreciated. thanks!

    Viewing 11 replies - 1 through 11 (of 11 total)
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    • #654201
      Gary BrownGary
      Participant

        How are your engine mounts? If they haven’t been replaced, I would with the new engine going in there. Otherwise, sounds like you’ve got a good plan.

        #654202
        JustinJustin
        Participant

          I think they might of been replaced 30,000 miles ago when the engine was rebuilt. but that is a good idea, and i should probably just throw new ones on it.

          #654205
          Gary BrownGary
          Participant

            [quote=”husker240″ post=127027]I think they might of been replaced 30,000 miles ago when the engine was rebuilt. but that is a good idea, and i should probably just throw new ones on it.[/quote] Might as well, the engine will be out anyways. When the transmission was done did they put a new torque converter on it? When doing a tranny overhaul or replace ALWAYS put in a new torque converter.

            #654208
            JustinJustin
            Participant

              i have a feeling the torque convertor is going to be one of those things where i look at it closely and see if it need to be fixed.

              #654209
              Gary BrownGary
              Participant

                [quote=”husker240″ post=127033]i have a feeling the torque convertor is going to be one of those things where i look at it closely and see if it need to be fixed.[/quote] Well you said you got the transmission rebuilt at some point, so if they replaced the torque converter(which they should have) you should be good as far as that is concerned. I would NEVER send a customer off with a rebuilt or replaced tranny without replacing the converter as well.

                #654212
                JustinJustin
                Participant

                  and i completely agree with you. I would never put a transmission in with the old torque converter. how ever, you wouldn’t think that you would have main bearing issues after 30,000 miles. so im not too trusting of the rebuilds the previous owner had done.

                  #654213
                  Gary BrownGary
                  Participant

                    [quote=”husker240″ post=127037]and i completely agree with you. I would never put a transmission in with the old torque converter. how ever, you wouldn’t think that you would have main bearing issues after 30,000 miles. so im not too trusting of the rebuilds the previous owner had done.[/quote] True, now when you say the previous owner did the rebuilds, I assume you mean he did the rebuilds himself?

                    #654214
                    JustinJustin
                    Participant

                      he said he took the transmission to a shop, but he had a friend rebuild the engine for him. i have a feeling that they tried to save money and didnt grind the crankshaft. and on a side note, there is 6 inches of snow outside

                      #654215
                      Gary BrownGary
                      Participant

                        [quote=”husker240″ post=127039]he said he took the transmission to a shop, but he had a friend rebuild the engine for him. i have a feeling that they tried to save money and didnt grind the crankshaft. and on a side note, there is 6 inches of snow outside[/quote] AH, hopefully the shop did it right and replaced the converter. Ya, I wouldn’t trust that engine rebuild..hence why it’s already failing. Chances are they didn’t have the crank machined(which is not always necessary, depends on how the journals condition) and they may have thrown it together without taking proper measurements for the bearings, endplay etc. Hard to tell.

                        #654216
                        JustinJustin
                        Participant

                          yeah. not too happy about it. but all said and done, do you think 2500 is enough? (1300+310 engine+core, say 500ish for my buddy (he is a mechanic and works at a shop, but we are doing it at his house) and the rest for the list)?

                          #654219
                          Gary BrownGary
                          Participant

                            [quote=”husker240″ post=127041]yeah. not too happy about it. but all said and done, do you think 2500 is enough? (1300+310 engine+core, say 500ish for my buddy (he is a mechanic and works at a shop, but we are doing it at his house) and the rest for the list)?[/quote] I would put aside 3k, that allows some cushion room I call it.

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