Yup, it'll run (and drive) just fine without a dash. Just be careful of hot wires or terminals shorting to ground from vibration. And if the engine cover is off, be REAL careful of the 2-3 shift. Your elbow will be very close to the bolts holding the waterpump pulley on, and the back of the passenger seat gets close to the alternator fan. The only sensitive spot is the small red light for "Gen" in the dash. If thats not grounded so it lights, the alternator field will not energize and you'll get no battery charge during running.