LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Stock TB question

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Old Nov 3, 2008 | 09:03 PM
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Default Stock TB question

Ok, does the plastic top of the TB actually do anything besides keep out dirt from getting into the internals of the TB?

Reason being is I have an idea for a unique dress up part (to replace this piece) but I am unsure if I will be able to get it to have an airtight seal. Do you think this would cause any problems?
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Old Nov 3, 2008 | 10:39 PM
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Plastic part? The name plaque? If so, it's metal on the ones I've owned. It covers some vacuum passages. People replace them all the time.
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Old Nov 3, 2008 | 10:40 PM
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Yea thats the piece, but does it matter if what you replace it with makes an airtight seal with the body of the TB? Or is it more of to keep debris from getting into the moving parts of the TB? Because I am thinking of fabricating a new name plate with materials that I dont think I could get an airtight seal with.
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Old Nov 3, 2008 | 10:40 PM
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Originally Posted by jaywalkersw
Yea thats the piece, but does it matter if what you replace it with makes an airtight seal with the body of the TB? Or is it more of to keep debris from getting into the moving parts of the TB?
It requires a gasket.
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Old Nov 3, 2008 | 10:43 PM
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Originally Posted by Formula350
Plastic part? The name plaque? If so, it's metal on the ones I've owned. It covers some vacuum passages. People replace them all the time.


Keep it sealed up with your unique design But seriously, do it

Last edited by Elliott's94Z; Nov 3, 2008 at 11:34 PM.
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Old Nov 3, 2008 | 10:55 PM
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Just get a new gasket and use it on your idea.
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Old Nov 3, 2008 | 11:55 PM
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when you put your new one on just make sure you have your new gasket on there...it shouldnt make a difference
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Old Nov 4, 2008 | 07:22 AM
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You can always use some sort of liquid gasket maker too just be careful not to apply too much and have it run down into the TB before it sets.
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Old Nov 4, 2008 | 10:35 AM
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Originally Posted by TDavanzo
You can always use some sort of liquid gasket maker too just be careful not to apply too much and have it run down into the TB before it sets.
I'd use cardboard before RTV on something like this >_>
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Old Nov 5, 2008 | 12:01 AM
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Originally Posted by Formula350
I'd use cardboard before RTV on something like this >_>
thats the spirit j/k isnt it. aren't those passages for your pcv system
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Old Nov 5, 2008 | 10:42 AM
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Originally Posted by Kmaroman
thats the spirit j/k isnt it. aren't those passages for your pcv system
I'm not sure the exact purpose of them, but they're vacuum passages either way you look at it, and having some RTV get lodged in there isn't something you want You would have to spread that stuff SOOOO damn thin for it not to ooze out when bolted back down.
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Old Nov 6, 2008 | 12:31 AM
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Originally Posted by Formula350
I'm not sure the exact purpose of them, but they're vacuum passages either way you look at it, and having some RTV get lodged in there isn't something you want You would have to spread that stuff SOOOO damn thin for it not to ooze out when bolted back down.
rtv is nice but can be the messiest thing in the world....personal experiences with it...we had an employee use rtv on sealing up brand new cablights on a brand new truck and lets just say he cost us some money...needless to say he was fired...

dont use any liquid sealer, rtv, or anything like that...cardboard will be fine on this...good luck
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