Stage 8 Bolt Kit GMC 6.2
 

Hi there can somebody please go to this website GM Locking Header Bolt Kits | Locking Bolts and tell me what ones will work with my 09 Sierra Denali 6.2. Thanks

#8900
from everything I know the bolts are the same in all the LS engines
and good choice on these, Ive run them twice now and they never failed! key is to get it hot when first installed then let them cool over night and re torque then install the locking tabs!

yep 8900 8mm x 1.25 25mm long