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mercruiser gil manifolds

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Old 05-21-2012, 09:06 PM
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Default mercruiser gil manifolds

these are off my boat. they pressure test good. i changed over to the hardins marine shortie headers for the polished look.
they are salt water used and show some corrosion here and there but all gaskets seal. they can use a couple of heli-coils.

$500



this one has what looks like a crack on the divider. its not leaking water but its there
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Old 05-22-2012, 12:31 PM
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how did the hardin marine headers work ? I was thinking of doing the same thing but I have twins and alot of money . did they help with hp or speed ? thanks Tim
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Old 05-22-2012, 09:27 PM
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hey Tim, it didnt pick up any speed. they sure do look great though!


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Old 05-23-2012, 06:56 AM
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are they taller than the gills ? whats with the 2 wedges ? are those stock bravo exaust holes ?
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Old 05-23-2012, 07:18 AM
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they are the same as the gils as far as the dimentions. the wedges are for my tailpipes to fit
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Old 05-23-2012, 07:43 AM
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where did you get yours and how much were they if you don't mind me asking ?
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Old 05-23-2012, 02:14 PM
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i bought mine from a member on here who had them sitting around
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Old 05-23-2012, 05:04 PM
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dam , I miss all the good stuff
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Old 05-27-2012, 05:26 PM
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TTT make me an offer!
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Old 04-28-2013, 07:29 AM
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I was thinking of getting two sets of hardin headers for my cafe, how do they sound compared to the gil manifolds? I have dry tailpipes Im wondering how they will sound compared to cmi headers. Any issues with water reversion?
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