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wdoc15 replied to the thread OEM Exhaust Manifolds Looking for some other info.

yeah, but 5 years and it's better than a original one. My concerns still not about price but water flow, gas flow, too cold water that...

Feb 22, 2025
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wdoc15 replied to the thread OEM Exhaust Manifolds Looking for some other info.

I got some pictures of a 5 years used manifold from the guy, much better then my original ones.
Feb 20, 2025
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wdoc15 replied to the thread OEM Exhaust Manifolds Looking for some other info.

I understand, 20 years in boats, never make sudden stops, you need to decrease slowly and then stop, otherwise pocket $$$$ will sufer.

Feb 18, 2025
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wdoc15 reacted to Scott Danforth's post in the thread OEM Exhaust Manifolds Looking for some other info with Like.

you must not understand why risers are used. it is specifically to make sure the top of the elbows are above the static water line so...

Feb 18, 2025
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wdoc15 replied to the thread OEM Exhaust Manifolds Looking for some other info.

Original engine was mounted with the 3" risers, I understand is a good thing in having more water in the manifolds, so colder temps.

Feb 17, 2025
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wdoc15 replied to the thread OEM Exhaust Manifolds Looking for some other info.

Explaining Black ones are finished units, Inside 1 picture is the middle man, after assembled will look like Internal3 and then they...

Feb 17, 2025
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wdoc15 posted the thread OEM Exhaust Manifolds Looking for some other info in Mercury MerCruiser Sterndrives & Engines.

I need to change my Manifolds, Risers and Elbows in a 5.7 350 Mag Horizon In Brazil original ones costs US$ 4k, I found a OEM company...
Feb 17, 2025
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wdoc15 replied to the thread Exhaust Manifold Question.

From their website "These are the Original stainless steel manifolds that were developed by Allen Will in Queensland Australia and sold...

Feb 17, 2025
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wdoc15 replied to the thread Exhaust Manifold Question.

a friend told me that stainless stell + high temps and salt water is not a good combination

Feb 17, 2025
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wdoc15 replied to the thread Exhaust Manifold Question.

found this ones (stainless steel) in Australia, (marinetorq) , US$ 3.400 AUD each....
Feb 17, 2025
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wdoc15 replied to the thread Exhaust Manifold Question.

Lou, can you please identify name or contact of this company in Australia?

Feb 17, 2025
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wdoc15 replied to the thread Exhaust Manifold Question.

showing internal components, as I understand water flow maybe a problem, turns and etc, inside everything is not rounded, as I think the...
Feb 17, 2025
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wdoc15 reacted to Lou C's post in the thread Exhaust Manifold Question with Like.

I’ve had good luck with Barr. I have 5 seasons on my present set and I scoped them with a bore scope and they look fine inside, no sign...

Feb 17, 2025
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wdoc15 replied to the thread Exhaust Manifold Question.

yeah, carbon steel, welded, in the commercial engines in Rio de Janeiro, the guy is some of artist and made a lot of sales, but I still...

Feb 17, 2025
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wdoc15 replied to the thread Exhaust Manifold Question.

When you say made wrong, things like small water passage, bad water flow, thin iron wall? I asked for the manufacturer internal...

Feb 17, 2025

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