Stop in for a cup of coffee

toolmanmike said
Looks like the same ones for the heat riser pan under the intake. Just unscrew them. The first one I didn't. :BangHead::BangHead:

On the exhaust manifold, some could be driven out from the back. The others needed to be pryed. A couple the heads broke off so had to drill.

zkx14 said
yep, pretty close

I think I bought them McMaster. Someplace I found a chart with the sizes etc.