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1985 3.8 L OMC Exhaust Manifolds

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  • 1985 3.8 L OMC Exhaust Manifolds

    Holy crap these things are impossible to find......engine runs strong, but it looks like both manifolds have been half *ss welded or JB welded at some point.....please help me find these manifolds...or suggestions on an alternative, I really like the 3.8L and it runs great, just trying to fix up a few little problems.
    MP


  • #2
    Re: 1985 3.8 L OMC Exhaust Manifolds

    You tried this site, doug russel marine, E-bay, E-basic?

    I thought i just saw them on e-bay, maybe im wrong, won't be the first or last time

    Welcome aboard!

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    • #3
      Re: 1985 3.8 L OMC Exhaust Manifolds

      nothing from noone......thats how it goes I guess I always end up with the oddball. Any conversion ideas out there.
      MP

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      • #4
        Re: 1985 3.8 L OMC Exhaust Manifolds

        can you put a 4.3 mercruiser manifold on? It has the same gasket and bolt pattern, is there a clearance issue with the valve covers....I would just have to figure out how to get from the center riser to the y at the drive.
        MP

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        • #5
          Re: 1985 3.8 L OMC Exhaust Manifolds

          Maybe these?

          http://www.**************/product.do?no=90680F
          sigpic

          1981 ChrisCraft 210 Scorpion K,175 Johnson SeaHorse

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          • #6
            Re: 1985 3.8 L OMC Exhaust Manifolds

            Since these have the center rise, how would I get back to the outlet....would this work?..........
            http://www.gates.com/brochure.cfm?br...cation_id=5249
            Thanks
            MP

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            • #7
              Re: 1985 3.8 L OMC Exhaust Manifolds

              Originally posted by captmorgan23 View Post
              Since these have the center rise, how would I get back to the outlet....would this work?..........
              http://www.gates.com/brochure.cfm?br...cation_id=5249
              Thanks
              MP
              did you see these?
              http://www.**************/category.do?no=14136
              88 Larson Citation DC 175
              165HP 3.7L I4 (470) alpha 1

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              • #8
                Re: 1985 3.8 L OMC Exhaust Manifolds

                What would this do.......does this make it a closed system and just the exhaust go to outdrive.

                http://www.**************/product.do?no=89274F

                MP

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                • #9
                  Re: 1985 3.8 L OMC Exhaust Manifolds

                  Originally posted by abj87 View Post
                  I did see those....and am still trying to get my head around how it would work.
                  Here is a good pic of my exhaust manifolds-

                  http://www.**************/product.do?no=89274F

                  Oh and by the way....you people are incredibly helpful and gracious...thanks for your time and expertise.
                  MP

                  Comment



                  • #10
                    Re: 1985 3.8 L OMC Exhaust Manifolds

                    Oh...the old log style..pre-Cobra,
                    Look at these,
                    http://bpi.ebasicpower.com/c/OMC8A/Manifolds+for+OMC

                    Still not sure if those will work. Call Ebasicpower,they are really helpful on the phone.
                    I have bought from them at least 20 times.
                    sigpic

                    1981 ChrisCraft 210 Scorpion K,175 Johnson SeaHorse

                    Comment

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