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why the differences between Gil manifolds?

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Old 12-28-2015, 12:45 PM
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Default why the differences between Gil manifolds?

Im looking for another set of Gil exhaust manifolds and saw a pair that has freeze plugs in them.
What are the differences between these [ATTACH=CONFIG]549193[/ATTACH] vs these [ATTACH=CONFIG]549194[/ATTACH]
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Old 12-28-2015, 04:08 PM
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I think the casting plugs are just cosmetically finished over on newer ones.
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Old 12-28-2015, 06:13 PM
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Originally Posted by phughes69 View Post
Im looking for another set of Gil exhaust manifolds and saw a pair that has freeze plugs in them.
What are the differences between these [ATTACH=CONFIG]549193[/ATTACH] vs these [ATTACH=CONFIG]549194[/ATTACH]
no difference at all. matter of fact if u look close the area where the plugs are on the earlier sets the later sets are thin there and will rot thru ..there setup to have the plug there but the plugs are omitted and a very thin layer of alum is there .ive welded up many sets that leak where the plugs are supposed to be
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Old 01-10-2016, 01:13 PM
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From the pics it looks like your first set is missing the extra water nipple at the riser flange
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Old 01-25-2016, 12:34 PM
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no difference at all. matter of fact if u look close the area where the plugs are on the earlier sets the later sets are thin there and will rot thru ..there setup to have the plug there but the plugs are omitted and a very thin layer of alum is there .ive welded up many sets that leak where the plugs are supposed to be
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Old 02-06-2016, 12:41 PM
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What is the point of the nipple on the back side of the riser? I have a new Gil as a spare and it has this. My older ones with freeze plugs have a plug in the hole? Is it important to have this? If so, where do you plumb the water?
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Old 02-06-2016, 01:47 PM
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What is the point of the nipple on the back side of the riser? I have a new Gil as a spare and it has this. My older ones with freeze plugs have a plug in the hole? Is it important to have this? If so, where do you plumb the water?
The nipple is there to eliminate air pocket, that would cause steam, or a hot spot. It goes up to the riser.
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Old 02-06-2016, 05:47 PM
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I took my dog out of the race .

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