There's a guy on the Focaljet who posted recently that he just finished a V6 out of a Cougar into the Focus. He's building it as part of this builder challenge ford is sponsering. I told him he aught to post here. He said the engine squeased right in, just had to modify the motor mounts.

2000 Rio Red I4 Cougar 200whp & 210wtq at 9psi 254whp & 276wtq with NX 35shot WRX TD04 Turbo, Cut Short Shifter, Strut Tower Bar, 17" ZN Wheels, Roush Springs, Starion Intercooler, NX 35 shot, HKS SS BOV, Full 3" exhaust,StreetFlight Chip