Moroso 22016 - Oil Restrictors, BBC Gen. 5 & 6

Oil Restrictor Kit Do Not Use w/Hydrau. Liftrs 1/16 in. Orifice Dia. w/Oil Liftr Galley Bosses Flush With Bell Housing Face 2 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