Picking up some crx si wheels - studs long enough?

I’ve searched and concluded that 5mm spacers are needed to clear the brakes and that said spacers don’t have a negative effect on handling, but I can’t find a definitive answer as to whether the wheels studs are long enough to be safe. Anyone have experience? These are going to have r-compounds on them. Need to stay with 14" rim, and I can pick these up for less than another set of steelies.

i put some 91 Si’s on my DA last night and they rub the caliper…i was thinking of going to home depot and get washers…same effect as spacers right?..