SBC/BBC Oil Galley Restrictors .070” 48010
Racing engines equipped with Roller Rocker Arms should have the flow of oil to the lifters restricted. This forces more oil to the engine bearings where it is needed. In addition, it cuts HP loss caused by oil windage.
These screw in restrictors are threaded into the oil passages located in the crankshaft main journal housing.
- .070″ Restrictor Holes