JohnD1956,
I don’t want the exhaust gases heading up the intake manifold tube. The heat riser is no longer in place. It was frozen solid and damaged (in the open position) I removed it when I had the exhaust apart.
Old tank,
I have seen multiple different places where someone will use an Allen head bolt and nut with a lock washer. It’s installed on the actual intake manifold gasket. I’m concerned about the nut (or bolt) falling off and heading back into the cylinder.
SpecialEducation,
your talking about the passages below the carburetor (correct me if I’m wrong) not on the actual gasket itself. I have seen this, the holes are tapped and a plug is loctite and installed. Only issue is,
1) I was told they don’t offer this for the early nailhead engines.
2) I wanted to block the exhaust from entering the intake completely.
On a side note where would I get “block off plates” for under the intake??