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Classic Zcar Community

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The Classic Zcar Community Pride Performance Preservation

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Exhaust manifold plug size where EGR used to go?

Posted May 4, 200816 yr

comment_246163

I got a non-EGR intake manifold installed and I now have a large hole in the side of the exhaust manifold that the EGR used to run to. I was wondering if anyone knew what size bolt or plug I can get to plug that exhaust manifold up with? Or should I just buy an aftermarket header?

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https://www.classiczcars.com/forums/topic/27979-exhaust-manifold-plug-size-where-egr-used-to-go/

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May 4, 200816 yr

comment_246169

IIRC it's a british pipe thread. not 100% sure though. your best bet is to find one slightly larger and tap it.

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https://www.classiczcars.com/forums/topic/27979-exhaust-manifold-plug-size-where-egr-used-to-go/#findComment-246169

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https://www.classiczcars.com/forums/topic/27979-exhaust-manifold-plug-size-where-egr-used-to-go/

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