This stud fits most popular AJ, BAE, Coline, and Total Flow valve cover/cylinder head combos with cast magnesium valve covers. Sheetmetal valve covers hould use #490-4108.
Studs are sold separately. Stud measures 2.125" overall with .500" of course, .625" of shoulder, .750" of fine thread and .187" of starter point. Will not work with conventional Fuel or Veney valve cover.