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258 exhaust manifold AIR plugs

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crazywrench View Drop Down
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    Posted: Jul/30/2022 at 7:40pm
I have an 81+ 258 manifold set I'm installing and it has holes for the AIR system tubes on the runners. Anyone know what size/thread the holes are for a bolt or pipe plug? There's also a big one for what I'm assuming is the EGR tube that I need to block off as well 

Edited by crazywrench - Jul/30/2022 at 7:42pm
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