There is not one SVL owner who has said any of their boxes have been hacked. That was Smitty saying all boxes out there have been hacked he believed. I'm assuming that is from his experience in the SV class he runs, but I really am shooting in the dark on this one.
I do know all of the SVL's from last year had sealed boxes checked at a lot of races, so I would doubt it very much in that class.
The issues on admitting other engines than the two currently allowed is the torque of the V-10 vs the V-8 and the RPM range it should be allowed to run if approved for the class vs the 525.
Can it be worked out, I would guess yes. It will take a bunch of testing, and some compromise between the current owners and any upcoming new engines allowed.
If the P1 style torque limiter becomes available things, I'm sure, would change.
Currently Pat and Steve's comments about data collectors intrigues me.