Announcement

Collapse
No announcement yet.

Exhaust manifolds

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Exhaust manifolds

    Replacing my manifolds and risers on an OMC 5.7. Anyone ever heard of or used H2O manifolds. Prices seem reasonable, and from pics castings don’t look to bad.
    Don, Paula, Aschely, Taylor, n Kaylee

    87 Ciera 2450

    Lake Texhoma

    #2
    Look identical to just about every other aftermarket, except for the name cast in. Hard to tell from a pic though.
    1986 Bayliner Contessa 2850
    In over my head for sure!!
    M/V SKUA refit
    https://www.baylinerownersclub.org/f...ak-gctid499442

    https://www.baylinerownersclub.org/f...contessa-refit

    Comment


      #3
      I agree. Looking at their company profile seems they have been around for a but, but are relatively new. Just can’t find anything on anyone trying them...... good or bad.........
      Don, Paula, Aschely, Taylor, n Kaylee

      87 Ciera 2450

      Lake Texhoma

      Comment


        #4
        Some of the product pics show areas where the logo was ground out of the casting. I think I'd pass on something like that.
        1986 Bayliner Contessa 2850
        In over my head for sure!!
        M/V SKUA refit
        https://www.baylinerownersclub.org/f...ak-gctid499442

        https://www.baylinerownersclub.org/f...contessa-refit

        Comment


          #5
          I don't know about them, but try Barr manifolds thru Michigan motorz. Bought a set three years ago and am very pleased.
          Captharv 2001 2452
          "When the draft of your boat exceeds the depth of water, you are aground"

          Comment


            #6
            I just bought a set of aluminum HGE manifolds spacers and risers for my 7.4l mercruiser. Wayyyyy lighter and they look very good. Castings are very nice. Dont think there will be any kind of power gain but the weight loss is what i was after. Big difference there. But you want to have a closed cooling system. I am using zinc anodes in the risers for corrosion protection from salt water.
            Doug
            1995 2859 -extensively rebuilt/restored 2016/17
            496 big block - Bravo ll leg
            The Doghouse
            Prince George BC

            Comment


              #7
              Hi their try Hi tek marine manifolds made of stainless steel save weight increase horsepower better fuel economy

              Comment


                #8
                For the money Barr is very good! Exhaust manifolds/risers are not a good place to compromise quality because water leaks at the riser/manifold joint will cause engine damage.
                88 Four Winns 200 Horizon 4.3 OMC
                98 Jeep Grand Cherokee 4.0/Selectrac
                07 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II

                Long Island Sound Region

                Comment


                  #9
                  here's a set I put on my '88 OMC to replace the OMC one piece batwings used on the V6 models.
                  88 Four Winns 200 Horizon 4.3 OMC
                  98 Jeep Grand Cherokee 4.0/Selectrac
                  07 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II

                  Long Island Sound Region

                  Comment

                  Working...
                  X