Sorry .. I was reffering to head bolts in above post...
If its a std unmodded overhaul ?
I wouldn't bother, even when stressed with forced induction its the rods themselves that let go..
Depends on build ??
If its a std rebuild.. If it means you can't sleep too easy at night etc??
Replace them!! They are NOT the weakest link...
Imo the old bolts will do fine if power levels are going to be roughly std..