size are s13 sohc exhaust manifold bolts? or nuts? and one more thing!

[Tx-Sx-FS]

my manifold like several peoples is missing some bolts...what i need to know is the length, size, and any other information needed for replaceing missing parts...are they studs with nuts on the end or just bolts that screw into the block?? mainly need information for replacing to hold my turbo manifold on when i get done time this week also..will a 23.5x6.5x3 intercooler fit in the front bumper area without modifications? how will the piping be done with battery in the way if not going to move the battery to trunk?? Thanks in advance.

[gumby]

8mm, 1.25 pitch, 25mm length

[s13sr20chris]

studs, wont fit with no mods, and smaller batt repositioned out of the way or relocate.

[navysnail]

hmm, on mine, its bolts on the top part and studs with nuts on the bottom. when i checked, i noticed the bottom front one is sheared in the head, but it doesnt leak so im probobly just gona leave it.