Correct intake bolt heads for 69 383

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Joey4speed

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Would anybody happen to know which of these intake bolts are correct for a 69 383?
intake bolts.jpg
 
I would say none of the above. Others will hopefully chime in. I believe they do not have a washer. Would be black oxide. 6 point head. Unsure if it had the "Highland" marking or a TR marking .
 
I would say none of the above. Others will hopefully chime in. I believe they do not have a washer. Would be black oxide. 6 point head. Unsure if it had the "Highland" marking or a TR marking .
Yupper, I agree, no washers on any of mine. Anyone I had though were a few years old but still had the factory intake on them, so I can’t see anyone just changing bolts. Kim
 
I will say the end that goes into the intake is sorta tapered at that end, not traded all the way down, that helps get them started. Everyone knew that though.
 
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