Engine decking issue(help)

Is there a possiblity i can just mill it doen myself with a 90 degree die grinder with a 60-80 grit sanding disc? Just looking at my options right now.
I am going to try and mill the oil pump a little at my work shhhh lol
But as for the main bolt or stud i contacted them about the issue and sent picture. Im not going to rely on them of course but i would rather not leave the washer off. Kind of at a stand still here. Dont want to go back to my machinist cause he takes long to do anything

Also rusty you have never ran into this problem before?


I wouldn't do that. The bolt spot face really needs to be parallel with the mating surface. If you are off even a small amount, it will side load the bolt, could bend it and will most likely make the cap out of round.

Nor will you ever get it flat doing it that way.

Can't you ditch the washer and maybe grind a small bit off the head of the bolt and get your clearance? That would be the only home fix I would do