The V-Strom has much longer forks and more suspension travel, such a swap would seriously change the front end geometry in a big way, and probably not for the better. Some riders will raise the forks in the triple clamps to quicken steering, and 15mm is considered the maximum you want to go. Gixxer forks are much shorter than that, and that would make the bike a handful to ride.
BTW, I don't think people do a complete front end swap with an SV650, they just swap the front wheel (which is a direct bolt-on fit, IIRC).
- Jet Jaguar
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