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rough age of the header on my car?


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So it was discovered upon beginning repair of a leaking exhaust manifold gasket that my '72 has an old aftermarket header on it. It's a 6-2-1 so it's got two 3-bolt flanges where the header meets the 2-1 collector and that's where it was leaking. Neither the shop nor I have any idea what brand it is, but it has (plugged) air injection ports at the cylinder head flange end, so whatever type it is it was a legit aftermarket replacement. Anyone dare to venture a guess as to what brand it may have been or how old it is? Doesn't matter, I'm just curious.

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I have included two brands of headers that I believe are NLA. They both came with/out air injection fittings. I managed to get one of the last ceramic coated Clifford headers before they stopped making them.



Edited by Curtis240Z
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