ARP main stud and oil pump clearance

Yes, thank you! Thats exactly what I was thinking? Do you know how much needs to be removed from both the cap and stud? Does this weaken or possibly distort the cap requiring a re-hone? Thanks for the pic.

The figure is .200" but that was only giving just enough clearance for the particular nut and washer in the pic. You may need to measure your nut and washer, it may be a little different, and just shorten the stud to suit.