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LS3 Exhaust Manifold flange size?

   
Old 04-27-2018, 01:31 PM
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Default LS3 Exhaust Manifold flange size?
Does anyone know what the proper flange is that I would need to mate up to the factory ls3 manifolds? I can't tell if its a specialty piece since it has a slot in the manifold.

Thanks!
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Old 04-27-2018, 01:41 PM
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i have a set at home i can take some pics/measurements of if you would like.
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Old 04-27-2018, 01:43 PM
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Originally Posted by dan95gst
i have a set at home i can take some pics/measurements of if you would like.
Sure that could help. Are your just factory take offs? I don't mind ordering some, but it seems 70$ for a set of flanges is high priced especially when Im not confident they will work.
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Old 10-10-2018, 07:07 PM
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There you go!

Look for that 0821 in the bottom of the pic
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Old 10-10-2018, 07:19 PM
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Originally Posted by sixty9fordkiller


There you go!

Look for that 0821 in the bottom of the pic
I think he was talking about the OUTLET flange of the manifold.
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Old 10-10-2018, 07:27 PM
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Whoops, i meant to post that in another thread where a member was asking about id'ng an LS3
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Old 10-10-2018, 07:29 PM
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Originally Posted by sixty9fordkiller
Whoops, i meant to post that in another thread where a member was asking about id'ng an LS3
Oops!! LOL Another "posted on the wrong thread" syndrome victim!! Been there, man!
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