ported exhaust manifold

Try here http://66.129.69.181/forum/topic.asp?TOPIC_ID=6798

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"You,re only supposed to blow the bloody SLIDING doors off"
 
This seems to be a common fault with exhaust manifolds [xx(]

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They tend to distort and lift in the middle, this one was .060" (1.5mm) low in the middle. The cure is to build it up around the ports with weld,and skim it back to flat, like this one. This will give much more nip on the gasket and prevent blowing :)

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"You,re only supposed to blow the bloody SLIDING doors off"
 
Another one of the joys of Exhaust manifolds is repairing the studs, you get to make things like 7/16 unf x M12 studs [xx(]

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"You,re only supposed to blow the bloody SLIDING doors off"
Founder of the 6 speed club
 
Nothing like a bit of imperial/metric jiggery pokery:)

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Member of the Non-Facebook Club
 
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