I've been running ARP studs in my turbo'ed 4200 for 8 years now. These are 1/2" head studs.
The engines been apart several times over that period for issues with rod bearings (initially) and a blown up compressor wheel that sent metal through the engine.
The studs are torqued to 95 ft/#.
The stud/block interface is marginal due to the length of the stud engagement. If the studs were engaged 1/2" longer this would not be a problem. The stock TTY head bolts engage the block over 1/2" more than the studs.
I monitor the head stud/nut torque during tear down and on the odd stud found a decrease in torque one time after making 600 Rear wheel FT/# on the dyno. There was some thread fatigue (studs were hard to get out) on that stud.
To date I have not had to heli-coil any of the head studs. If the engine need to come apart again I will be installing helicoils on all positions as a preventative fix. This will increase the thread surface area and eliminate the thread issue.
If I was to start over with a fresh build I would get custom studs made up with a 1/2 -13 x 1.5" block engagement length and a 10mm dia shank. This would allow a higher dynamic clamp load without having to go to 120 ft/# on the stud which the block substrate will not tolerate.
I worked on the Black Opel we ran at Bonneville and Dick (engine builder) found that with the same studs I'm using, above 110 ft/# stud torque, the block material would move.
To the other posters comments, the head is the part that expands under heat and the head thickness at the bolt boss is about 110mm. Assume that the engine is built at 20*C and operates at 105*C this is a delta T of 85*C
https://www.amesweb.info/Materials/Thermal_Expansion_Coefficient_of_Aluminum.aspx
https://www.engineeringtoolbox.com/linear-thermal-expansion-d_1379.html
The head expands ~ 0.007" at the bolt boss interface. Which increase the dynamic clamp load of the stud.
The stud also expands but only ~ 0.003 to 0.004" so the real change seen at the stud is 0.003 to 0.004" (head - stud). One would have to do the detail calc's to determine the load change at the bolt/block interface to determine the stress load at the interface.
I think there is a mechanical engineer on the board that could do the calc's.