I am looking for NOS or at least NRS head studs for a 1937 Mopar 228 cubic inch flat head 6 cyl. Suspect the studs are same for many years and sizes. Unique aspect is I want to use the original type with the shoulder at the coarse thread (closest to head) end of the stud. I have found a few but need about 15-18 more. Any ideas where I can buy these? Thanks in advance.