I guess it's time to do a lot of research to find the proper and suitable engine & for the VX.

Going V8 ? what about fuel price ?
Unless isn't your DD it could be Ok to do so.

Another details such as ECU,wiring harness and drivetrain fitness is all to be taken into account. You must have a good bunch of $$$ do get the job done.

I hope you can successfully get it,i also would love to get more power and torque for my horse