Bolt torque discussion

Torque for a grade 5 5/16 bolt with lube is around 13 ft lbs
put in a grade 8 and torque to 13 ft lbs you get no stretch and no clamp if anything moves or gasket compresses
Install grade 8 and torque the grade 8 to 18 lbs you get more clamp but may warp something, or strip aluminum
now you could use a bottleneck stud... but why
use the right bolt
been there done that upgrade drill 60 years ago
not worth it
but use quality bolts whatever you use
I like Mopar performance SPS rod bolts