Oil orifice restrictors for RB engines.
When building an RB20, RB25, RB26 or RB30 engine it is common practice to restrict the amount of oil flowing to the head of the engine to prevent excess oil in the head. NZ Made CNC Machined high quality parts.
Sizes available are 1.0mm, 1.25mm, 1.5mm and 0mm (blanking plug).
Please see second picture for sizing recommendations.
Price is per restrictor.