Looking for the part# to put 1/2" headstuds in a B18b block with a b16a head. I originally had gsr headstuds but upon torquing the head two of the block holes stripped, so i fixed that and now a different one stripped. My solution is to get the oversized studs or a new block (this will cost a good bit to have the same thing i have now) so I am now forced to go with all oversized studs. Can anyone hook me up with the part # if there is one?