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OIL RESTRICTORS, SBC & BBC
Oil Restrictor Kit. SBC and BBC engines, .0625" orifice dia. Screws into existing lifter galley cleaning plug holes at back of block. 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