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Harman exhaust

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Crusadertwinturbo74

  • Join Date: Aug 2018
  • Location: Holton
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« on: August 03, 2018, 09:17:33 AM »
New to site :)

  I've had one of my boats for 33 years that one is a 1973 Rally Sport BBC 454 great ride.  Just got this one about 6 months ago.  I'm in the process of building a 1974 Crusader 508 BBC twin turbo.  My question is I have a couple of the Harman water cooled exhaust manifolds that have the cooling at the top.  They are in great shape.  The question I have is I pulled the cooling inlet off the front of the manifold that runs along the exhaust ports and looked inside.  I expected to see the water jacket run all the way down to the last cylinder port but it doesn't ? it take a turn downward.  So just was wondering if anyone may knew how the water path in the manifold runs.  I'll post pictures later when I figure out how to upload them they all seam to be either sideways or half pictures ? thanks.
  • Boat #1: 1974 Crusader


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