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HELP JDM ITR header does not clear oil pan

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  • HELP JDM ITR header does not clear oil pan

    I have a '90 LS block with a b16 head and the JDM ITR 4-1 header does not clear the oil pan. I heard the '96 pan will clear it but I need to verify it before I order it. Also, the '96 pan will bolt right on right?

    There is another thread with crossmember clearance, but I'll put it here again ... does it clear the crossmember without notching?

    Thanks

  • #2
    How far is it off? I hear some people CAREFULLY bang it in the oil pan...key work is carefully...but it's your motor...

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    • #3
      I would rather buy a new oil pan it drain plug thread is kinda stripped, and I don't particularly like banging my engine.

      The lower part where the pickup extends about a cm too far toward the passenser side and where the header sits.

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      • #4
        Update:

        '92+ LS oil pans fit fine. What a unexpected waste of $112

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        • #5
          why doesnt the JDM ITR header not clear the 90 Ls oil pan ...is it shaped slightly different?

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          • #6
            weird. I was actually worried about this.

            although I thought about it more and concluded that if im using a b16 (shorter) block and GSR (slight shorter) head, I shouldn't have any troubles.

            But...I guess its all a moot point now. Good to know.

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            • #7
              The problem wasn't necessarily the height of the engine. The area of the oil pan where it dips down to fit the oil pickup is bigger/longer toward the tranny side so it hits the header.

              And yeah, the design is different.

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              • #8
                hmm, interesting. i had almost the same problem when i first built my LS/vtec up a while ago. bought a GSR 4>1 from DC, cleared the pan, literally like 1mm away though. i decided that was too close and went with the 4>2>1 DC piece for an LS engine. clears fine. has anyone else had issues like mine, and if so, what header are people using that clears the pan better. i really want to run a 4>1, but every company who makes one is for the GSR only...

                bryan

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                • #9
                  Originally posted by ShadyB
                  The problem wasn't necessarily the height of the engine. The area of the oil pan where it dips down to fit the oil pickup is bigger/longer toward the tranny side so it hits the header.

                  And yeah, the design is different.
                  "Massage" thje pan with a hammer. That's how I got mine to fit. It's damn close.

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                  • #10
                    ooo great. I just bought a integra type r header 4-1 for my ls vtec that I just got. The ls vtec came with the wrong header and my friend that is putting the motor swap in he says that I need to ge tthe intergra type r header so I did. I also have the b16a jdm head. Do you guys know if I will have the same problem with the oil pan?

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                    • #11
                      Ok, once again ...

                      90-91 LS oil pans are the same and they don't clear the JDM 4-1 header.

                      92+ LS oil pans are all the same part number and are the same and they clear the header quite nicely.

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                      • #12
                        Originally posted by ShadyB
                        Ok, once again ...

                        90-91 LS oil pans are the same and they don't clear the JDM 4-1 header.

                        92+ LS oil pans are all the same part number and are the same and they clear the header quite nicely.

                        My JDM Honda ITR 4-1 DID NOT clear my '92 oil pan.

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                        • #13
                          Hmm, weird ... dealer says that 92+ oil pans are the same.
                          Can anyone confirm?

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                          • #14
                            hey I am in the process of doing my LS Vtec. It will almost be done over the weekend. I will let ya guys know if I have any problems with the oil pan and header.
                            peace

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                            • #15
                              Also, anyone have problems with the JDM ITR 4-1 header hitting the crossmember? Not the normal area where the primaries hit the edge, but where the heatshield mount hits the middle area of the crossmember.

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