1986F150Six Posted February 28, 2020 Share Posted February 28, 2020 I have never seen one before this: https://www.ebay.com/itm/ECON-O-POWER-MARINE-WATER-COOLED-EXHAUST-MANIFOLD-FORD-240-300-CID-USED/223769830463?hash=item3419b8a43f:g:h0MAAOSwX-Zd3rZc Link to comment Share on other sites More sharing options...
Gary Lewis Posted February 28, 2020 Share Posted February 28, 2020 I haven't seen that one before, but it is normal for boats to have water-cooled exhaust manifolds. However, that one channels #1 past #2 then #3, etc. Looks seriously restrictive compared to an EFI pair. And $1000??? Link to comment Share on other sites More sharing options...
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