If you swap the engine out you'll have to make sure that the SHO comes with a transmission as well so it can handle the additional torque. You'll also need the SHO's wiring harness and computer. Unless your current engine is causing a lot of problems it'd just be best to stick with the same engine again. Or, find a good, used SHO taurus. I wouldn't recommend it, but it would be possible with a lot of sweat, money and aggrevation!
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1993 Dodge Spirit 2.5L TBI, 100hp
1999 Ford Taurus 2V 3.0L, 145hp
2000 Dodge Durango 360, approx. 285hp @ crank
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