87 gn intake bolt

[Slick87gn]

Anyone know what size bolts are in the intake

 

[bison]

anyone know what size bolts are in the intake

3/8-16

 

[ghall]

For future searches--some info i had to figure out:

Stock length is 1 1/2" , 1 3/4" will work for more bite.

arp #'s:
123-2001 = 1.5" 12 pt. black oxide
423-2001 = 1.5" SS hex 6 pt.
613-1750 = 1. 3/4" 12 pt SS polished