The Zetec engine seems rather durable. I am yet to see a thread about a blown Zetec (or at least one that didn't deserve it.)

Ride: 2000 T-red SE
Beats: Kenwood 316S, Alpine MRF200, Orion XTR 6.2, Coustic 400SE
Mods: CTA, Magnaflow exhaust, SVT Instrument cluster, Knuaberized doors, side markers, F***ed up painted headlights.