Calibra turbo pistons for Zetec Turbo, C20XE pistons (redtop NA) for ZVH.

With the turbo pistons in a ZVH, your compression will be very low - compromising your off boost performance.

I have a set of XE forged Mahles (be careful at some point they used cast pistons instead of the forged ones) - suitable for ZVH. They require machining work to get oil to the pin, and the Zetec rod little end need boring out to press fit with the pins.