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02-08-2020, 04:56 PM
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Registered User
Join Date: Mar 2018
Location: Fort Wayne
Posts: 106
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exhaust manifold question
So my truck is a 1968 with a 307 in it. I have the ram horn style of exhaust manifolds and I need to address an exhaust leak from one of the exhaust manifolds. I can see where the bolts attach on each side of each port.....but mine also has these funky square bolts on each port. What are these and what is their purpose? These don't seem to go all the way thru and into the block.
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