Best thing is to go to the 3L forum and read up on doing a 3L/SVT hybrid engine.
Way cheaper than buying even a USED SVT engine.
These engines have an oil starvation issue on long sweeping right handers. i.e. if you run your oil even a pinch low then take a right handed on or off ramp at high rpms, the oil does a combination of staying up in the head (due to high rpms pumping it all up there) and thus the oil level low is now low in the pan, and it moves away from the oil pickup (due to centrifigal forces) resulting in a drop in oil pressure (all it takes is a split second to wipe her out) and voila spun big-end bearings.
Sorry dude.
But more horsepower is just around the corner!
