This COMP Cams High Energy stud for Oldsmobile applications has a 5/16" base thread and 3/8" rocker thread with a 1.520" effective stud length, suited to moderate lift and spring pressure installations. It provides the proper thread sizes and length for specific Oldsmobile valvetrain fits. The stud is offered where the manufacturer calls for the 5/16"/3/8" combination and mid-range performance requirements are present.
COMP Cams Stud Oldsmobile 3/8inX5/16in