I had bought the head bolts for the D16y8 head I am putting onto my D15b7 block. they are about an inch too short on the threaded end. They were only 3 bucks each so no big loss. but the old stock D15b7 bolts fit perfect! Well back to the dealership where the D15b7 head bolts cost $9 bucks each!!! Summit sells ARP head stud kit for "honda D16 series, 10mm" for $90 bucks. Will these fit my block or will these be an inch short on the threaded end as well? the part no. is ARP-208-4301. Thanks!