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Putting my original exhaust manifolds back on! Saved the bolts in an oil can with other bolts - so does anyone know the correct markings on the exhaust manifold bolts? Have not found a ref to markings, assume a few different styles exist.
What was the finish on these, appear black chormate, however I assume they need to be engine org.
Exhaust manifold bolts had a "raised circle" on the perimeter of the bolt head. These bolts were black phosphate-finished. Some may have been black oxide.
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