I think it would fit, but is probably not worth it. You'd have to figure out all the electronics. The AW30-40 is all electronically controlled. Also, all the electronics in the 960 are integrated (ECC communicates with the ECM, ECM communicates with the TCM, cruise control communicates with both the TCM and ECM.) The B6304 uses Motronic fuel injection instead of the LH system, so basically nothing transfers over. It would be a wiring nightmare, I think.

The B6304 is a sweet engine and I'd never own another red-block after having owned a white-block, but in your case, I'd go with a B230FT. I think there are too many "little" things that are different that will drive you crazy in the end (not to mention nickel and dime you to death).

Oh, and the center console would all have to be changed to fit the different shifter and to make room for the ESW switch. As would the driveshaft.

Can it be done? Yes. It probably wouldn't be too hard, since the 700 and 900 are so mechanically similar. Of course, you would need all the electronics, preferably the tranny (electronically controlled auto) too.

The NA inline six produced a smooth 201HP/166lb-ft (or 188HP/185lb-ft), but it's not known as a good off-the-line motor. The bulk of it's power is produced in the higher RPM range, making for excellent passing power on the highway. You could try to do a turbo setup, like the S80 has, but that would be a lot more work.

The B23(0)FT is a very robust, durable and inexpensive motor. Stock output is ~162HP, 180lb-ft. You can tune it over 200HP with very little money and effort. It is as simple a swap as you can get.

I would definitely choose the turbo motor. Stock 0-60 for a 960 was ~9.2sec. Stock 0-60 for a 740/760/940T was ~7.5 - 8.5sec, depending on model year, tranny and equipment level.

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Speed Racer, '83 240 R, '74 164 E, '93 940 OL1 (Manchester, CT)