Will a Stock 489 handle 700hp?

Yes, a stock 489 will live just fine.......as long as you never, EVER put good tires on it. Put hard-*** T/A radials on it, it will live forever. Especially if you continue to use a no-stall-speed converter, and no gear in the back.
There is NO way i would spend $1500 on a 8 3/4 center, if i had 700 hp. A new strange 60 is only about $700 (?) more, and you can turn your 8 3/4 before you break it, to recoup some of the cost of the 60. But if you keep that nothing converter, you probably wont need one.
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