I.D. on Series II stock rear exhaust manifold primary?
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I.D. on Series II stock rear exhaust manifold primary?
Does anyone have the inner diameter of the Series II stock rear exhaust manifold primary? Particularly right at the flange, if that'* the most restricted part?
(Better yet, a good estimate of what it would be if any ridges or welding flaws were ground out...not "ported", just smoothed...)
If, like the front manifold, it'* not perfectly circular, how about an "average" diameter?
Thanks
(Better yet, a good estimate of what it would be if any ridges or welding flaws were ground out...not "ported", just smoothed...)
If, like the front manifold, it'* not perfectly circular, how about an "average" diameter?
Thanks
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