You will need to use the Zetec flywheel if your cvh flywheel is not an EFI one, if your running std engine management, and then fit a rst clutch (220mm) to the zetec flywheel and bolt up the 3i box or find an IB5 box from a mk5/6 escort that has 4 bolt holes in the front casing like a mk3 gearbox down side is that puts the starter on the back but then you can use a clutch from a mk5/6 escort