I'm doing a stock rebuild for an old truck. This is my first FE that has the little cup plugs for the oil galleys. All my others have the screw in stuff. Do these go in concave, like the freeze plugs, or convex, like the cam plug?

Thanks,

-Brian

 

They go in concave like the freeze plugs, or better yet, drill and tap the holes for threaded plugs.

 

Also I would stake that back cam plug. I've had those blow out.

 

Thanks guys.