they usually say if your putting an ib5 onto a 2.0 block you need a 1.8 sump, oil pump, pickup pipe and flywheel/clutch assembly. The 1.8's were only ever fitted with ib5's no matter what they got put in, so all the 1.8 gear is drilled for ib5 but still fits the 2.0 cause its a zetec