A much needed product when building a Nissan RB engine, these are used to control the flow of oil in the engine block.
Oil Gallery Block Off (PROGRB-00)
Oil Gallery Restrictor 0.9mm (PROGRB-09)
Oil Gallery Restrictor 1.1mm (PROGRB-11)
Oil Gallery Restrictor 1.3mm (PROGRB-13)
Oil Gallery Restrictor 1.5mm (PROGRB-15)