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Old 02-13-2011, 03:41 PM   #1
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Default how do you convert to fresh water cooled manifold/exhaust?

my 01 3500 has the merc 7.4 efi engines that are already Fresh water cooled, but I believe the exh manifolds (or just the risers maybe?) are raw. How can you convert these to be fresh water cooled?
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Old 02-13-2011, 04:22 PM   #2
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Mirage
I believe that the risers have to be FWC models ..basically they return the coolant back to the engine after it has cooled the risers...and manifolds...then back to the heat exchanger...

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Old 02-13-2011, 11:56 PM   #3
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is there any benefits of doing that if the manifolds themselves are already FWC?
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Old 02-14-2011, 02:12 AM   #4
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if your manifolds are fwc'd..then your engine should be fwc'd also....

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