Member Steff on here eliminated the VVT on his 6.4 build, but he used a custom belt drive and cam. Not sure if it could be done easier though. There are aftermarket VVT cams but they're pricey, $800 range pricey for just the cam, although, a 6.4 SRT cam is an upgrade alot of 5.7 guys do, and they can be had for less than $100. I imagine you could cut out the cam phaser and lock the timing where you want it, I'm guessing a lathe and mill would come in handy for this