Stock oil pump studs are more likely to fail when they are subjected to the stresses of performance and racing engines. Failure of any portion of your oil system could be catastrophic to your engine, so upgrading to a Milodon oil pump stud could be good insurance at a low cost. For reliability, it is centerless ground from 8740 chrome moly steel and features rolled and heat-treated threads. The ground washer and grade 8 nut are included.