Stop in for a cup of coffee

MOPARMITCH said

Grind Em Flat to the Block..........Just make sure you can still get a tool in to remove, if needed.....

Click to expand...

Take them out, run a thread chaser in the holes, then they will go all the way in. Or mostly, then grind them flat...
And do not forget to clean out the shavings from taping the holes....those are oil gallery's to the lifters....