Crane Cams Gold Race Roller Rocker Arms feature an extruded billet aluminum body with needle bearing fulcrum and roller tip. The needle bearing fulcrum and roller tip reduces friction, lowers engine oil temperature, improves response, increases HP and RPM. For Use With Valve Springs Up To 700lbs Open Pressure.
Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.7 Ratio, Fits 7/16 in. Stud, Oldsmobile, Set of 16