6.1 hemi main bolt replacment query

Great forum and info, nothing like this in OZ.
Am right at start of building a 1962 Valiant S Series with a 6.1 and other mods. Have attached pic.
Got a question on the 6.1 hemi main bolts as read on another thread they are Torque To Yeald. Was about to purchase the ARP stud kit as fitted mildon sump and pick up which is attached by main bolt. I will eventually go forged rotating assembly but someone mentioned will need to line bore mains if fitting studs?
Plan was to just change out each bolt and tension studs to spec, which I have yet to find. Motor is brand new.
Any help much appreciated.