Milodon main stud kits are required where maximum gasket loading and minimal wear and tear are exerted on the block threads. These engine studs are premium-grade, race-quality studs that are created from aircraft-quality 8740 chromoly steel right in Milodon's own plant. They are ground and thread-rolled afterheat treatment to ensure the exacting tolerances that Milodon requires for all of their fasteners. This ensures strength and consistent torquereadings. The tensile strengthof these premium fasteners is 190,000 psi, which is more than adequate for the most demanding applications. All kits come complete with 4130 heat-treated, parallel-ground washers and high-strength nuts.