Moroso 22018 - Oil Restrictors, Dart Shp

Oil Restrictors, Dart SHP, (SBC Based), .060" Orifice Dia. Oil Delivery Holes at Rear Cam Bearing Must be Tapped to Install. Two Per Pack • Reduces oil flow to upper engine assembly, leaving more oil available for the rod and main bearings • Reduces power-robbing windage by reducing the volume of oil passing by the rotating assembly on its return to the pan • Do not use with hydraulic lifters